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Fully Managed LimeSurvey
as a Service

Deploy LimeSurvey as a fully managed service starting at €9/mo. Get automated backups, SSL, updates, support and monitoring included.

LimeSurvey is an open-source survey platform — multilingual questionnaires, conjoint and MaxDiff designs, anonymous and token-based response modes — used by 250+ universities and 75+ public-sector organisations worldwide.

Free 7-day trial  99.9% Uptime SLA  No credit card  Cancel anytime

Free 7-day trial  99.9% Uptime SLA
No credit card  Cancel anytime

LimeSurvey

LimeSurvey

STARTING AT

€9/month
Automated Backups
Monitoring
Automated Updates
Auto SSL

USAGE

Unlimited
Human Support
Custom Domains
Terminal Access
File Manager Access
Deploy in your region 21 locations worldwide
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ABOUT THE SOFTWARE

What is LimeSurvey

LimeSurvey is an open-source survey platform — multilingual questionnaires with anonymous or token-based responses, conjoint and MaxDiff designs, native exports for SPSS, R, and Stata. Self-hostable, with a managed cloud option from the project itself.

The codebase is licensed under the GNU General Public License version 2 or later. It is maintained by LimeSurvey GmbH, based in Hamburg, Germany, with managing directors Jory Nagel and Carsten Schmitz — Schmitz being the original author when the project began life as PHPSurveyor in 2003. Patch releases are shipping weekly and minor releases roughly every eight weeks.

By the project's own count, LimeSurvey is in production at 250+ universities and research institutions, 75+ public-sector organisations, and 50+ healthcare organisations, with deployments in 160+ countries. The runtime is PHP against MariaDB, MySQL, PostgreSQL, or Microsoft SQL Server, on Apache or nginx. LimeSurvey 6 added Bootstrap 5 themes, expanded right-to-left language support, and a refreshed admin interface — the version line that managed hosts run today.

FEATURES

What LimeSurvey does

LimeSurvey ships with the question types, logic, sampling controls, and export formats that make it the open-source default for academic, government, healthcare, and market-research work. The list below covers what it does out of the box, not paid add-ons.

Multilingual surveys (40+ languages)

Each survey holds a base language plus any number of translations. Strings export to a single file for translators and re-import cleanly. Right-to-left scripts (Arabic, Hebrew, Persian) render natively in version 6.

Conjoint, MaxDiff, and advanced research designs

Conjoint and choice-based conjoint, MaxDiff, click-map heat tests, tachistoscope, and Implicit Association Tests are supported by Expression Manager — no separate research-design tool required.

Native exports to SPSS, R, Stata, and CSV

SPSS and R exports include syntax files that preserve variable labels, value labels, and question text. CSV and Excel exports cover ad-hoc analysis. The VV format is for LimeSurvey-to-LimeSurvey transfer.

LDAP and SAML single sign-on

LDAP authentication is bundled in core. SAML SSO is supported via a plugin against Entra ID, Okta, Shibboleth, or Auth0 — set up during onboarding rather than left for the customer to wire.

Anonymous and token-based response modes

Run open-access surveys for citizen consultation, or token-based surveys for re-identifiable panel waves. Anonymous mode severs the token-to-response link at submission, which is the ethics-committee-friendly setting.

Expression Manager and conditional logic

Conditional branching, calculations, and cross-question references using `{Q01.NAOK}` syntax. The `emcache` table caches evaluated expressions on heavy-logic surveys so page transitions stay fast.

Quotas and randomisation

Per-question quotas, full-survey quotas, and randomisation of questions or answer options. Useful for brand trackers, A/B prompts, and sampling-controlled academic studies.

Plugin architecture

Authentication, statistics, and custom question types extend through a documented plugin API. We hold a tested allowlist of plugins per LimeSurvey release and rebuild compatibility ahead of major-version moves.

WHAT'S ALWAYS INCLUDED

Every app. Fully managed.
Nothing extra to pay for.

Every app you deploy includes the full managed service — security, backups, updates, and support from day one.

Automatic updates and patches

Apps run the latest stable version. Security patches applied silently, with rollback if needed.

Daily off-site backups

Multiple daily backups in redundant off-site locations. One-click restore if anything goes wrong.

24/7 uptime monitoring

Continuous monitoring with instant alerting. We respond before you notice.

SSL, firewall, DDoS protection

Auto-renewing SSL, hardened firewall rules, DDoS mitigation on every deployment.

Performance and scaling

We monitor resource usage continuously. When your app needs more headroom, we flag it and upgrade with your explicit approval.

Dedicated engineering support

Real engineers on chat. DNS, SMTP & migration help. All included in €9.

WHY MANAGED

Why teams pick managed LimeSurvey

Two trends pushed researchers and operators toward self-hosted or managed LimeSurvey in 2025 and 2026: survey-SaaS renewal pricing climbed sharply, and the legal basis for hosting respondent data on US-controlled clouds got harder to defend on paper.

The pricing side is the easier one to evidence. SpendHound's 2025 benchmark of 160 Qualtrics customer contracts put enterprise renewal pricing up 30.45 per cent year-over-year, with SMB renewals up 8.96 per cent. Qualtrics's only self-service tier with published list pricing — Strategic Research — starts at $420 per month, billed annually, capped at 1,000 responses per year. SurveyMonkey Team Premier lists at $92 per user per month on annual billing, with response overages billed at $0.15 each above the plan cap. Typeform Business caps at 10,000 responses per workspace per month before forcing forms into a private mode until the next cycle. None of this is unusual; per-seat and per-response economics is how proprietary survey tools work. It does mean that a research lab or insights team running real volume hits the renewal line item before the feature line item.

The legal side is the newer one. The Digital Operational Resilience Act became applicable in January 2025; the EU Data Act in September 2025; the ECB cloud-outsourcing guide landed in July 2025. The EU Tech Sovereignty Package is reported as binding for public-sector procurement from late May 2026, which changes how a national agency justifies a US-headquartered SaaS for citizen-survey data. None of this banishes proprietary tools; it does mean that a transfer-impact assessment now has to name the CLOUD Act and FISA Section 702 as live risks and explain the technical supplementary measures in response. Self-hosted LimeSurvey, in a region the buyer chose, with encryption keys held by the buyer or the buyer's host, is a defensible technical control where a contract clause on its own is not.

What "just running LimeSurvey" does not cover is the operational tail behind it. The PHP memory budget that fits a 1,000-response survey will fail on a 30,000-response export with a Fatal error in CDbDataReader on line 122 — a recurring forum thread across versions 1.91 through 6.x. ComfortUpdate goes blank on step 3 when the memory limit is too low to hold a database backup. Custom survey themes reset to Fruity TwentyThree on the 5-to-6 upgrade, by design. We set memory_limit to 256M, max_execution_time to 1200 seconds, and upload limits to 64M. That is what is meant by "managed."

REVIEWS

Hear from customers ​like you​​​​​​​

Successful businesses and professionals around the world rely on DANIAN every day

USE CASES

Three teams who run LimeSurvey on DANIAN

Composite scenarios, grounded in deployment patterns documented on the LimeSurvey forum, the project's solutions pages, and published university IT service pages. They illustrate the configurations these team types actually need, not aspirational ones.

 12-PERSON MIXED-METHODS RESEARCH LAB

Moving off the institutional Qualtrics site licence after a budget cut

European university social-science lab — two PIs, six doctoral candidates, three RAs, one data manager. Region chosen to satisfy the faculty's research-data-management plan. Institutional SSO wired through the SAML plugin against Azure Entra ID. Three active longitudinal panels, 18 languages, five-year IRB-mandated retention. Export goes to SPSS for the supervisors and R for the doctoral analysts.

 8-PERSON EPIDEMIOLOGY UNIT

Patient-reported-outcomes pilot, ethics-committee approval pending US-cloud removal

Public-health agency unit running a 14,000-participant pilot wave in four languages. Transfer-impact assessment flagged that SCC-only arrangements with US-controlled clouds no longer satisfy the EDPB technical-measures bar. Region pinned to a single jurisdiction. Response encryption enabled. TLS-only SMTP with DKIM and DMARC for invitations. Ten-year retention configured at host level.

 6-PERSON MARKET-RESEARCH CONSULTANCY

Conjoint and brand-tracker work, peak 40k responses per month

European DTC-focused agency. Drop the per-response economics: SurveyMonkey overage at $0.15/response and Typeform's 10,000-response-per-month cap each break the per-project budget. LimeSurvey conjoint via Expression Manager, eight languages, custom subdomain at survey.agency.tld, webhook export into an internal R and Stata analysis pipeline. Six seats. €9 per month.

COMPARISON

Four ways to run LimeSurvey

A team running surveys has four real options. The math below uses published list pricing from the SaaS vendors and a production-class VPS reference for self-hosting. The numbers are illustrative; verify against current vendor pricing pages before committing.

 PATH1 USER5 USERS 10 USERSOPERATIONAL REALITY
Proprietary SaaS
SurveyMonkey Team Advantage / Qualtrics Strategic Research / Typeform Business 
$39/mo
SurveyMonkey Standard, 1,000 responses/yr
$150/mo
SurveyMonkey Team Advantage at $30/seat, 3-seat minimum; 50,000 pooled responses/yr
$300/mo
+$0.15 per response over plan; Qualtrics enterprise averages $323,532/yr per SpendHound 2025 benchmark
Per-seat and per-response economics. Data lives on the SaaS vendor's cloud, under their jurisdiction. Renewal price rose 30.45% YoY for enterprise Qualtrics in 2025. 
Self-host on a VPS
$24/mo production-class VPS 
$44/mo infrastructure + €60–240/mo time
VPS + object-storage backup + monitoring + 1–2 hours/month of patching, certificate renewal, backup verification, and on-call. Database tuning above ~25 active users.
$44/mo infrastructure + €60–240/mo time
VPS + object-storage backup + monitoring + 1–2 hours/month of patching, certificate renewal, backup verification, and on-call. Database tuning above ~25 active users.
$44/mo infrastructure + €60–240/mo time
VPS + object-storage backup + monitoring + 1–2 hours/month of patching, certificate renewal, backup verification, and on-call. Database tuning above ~25 active users.
You own the stack. You also own the 2am pages, the PHP version bumps, and the ComfortUpdate failures. 
Home or office server
Synology DS923+ / HP ProLiant ML30 Gen10 
€210–667/mo effective
Hardware amortised over 36 months + electricity + business internet with static IP + off-site backup target + operator time. A backup on the same machine is not a backup.
€210–667/mo effective
Hardware amortised over 36 months + electricity + business internet with static IP + off-site backup target + operator time. A backup on the same machine is not a backup.
€210–667/mo effective
Hardware amortised over 36 months + electricity + business internet with static IP + off-site backup target + operator time. A backup on the same machine is not a backup.
Real option for tinkerers and resilient setups. Not a production answer for a survey that has to be live during the IRB-approved fieldwork window. 
DANIAN Managed LimeSurvey€9/mo€9/mo€9/moFlat price regardless of users or responses. You pick the datacenter region. We run the operational tail. 

BY INDUSTRY

LimeSurvey for specific industries

These four industry blocks cover where LimeSurvey is meaningfully different from the SaaS default. The regulation, the configuration, and the workflow detail in each block are specific to LimeSurvey on a managed host — not a generic compliance pitch.

Regulation: GDPR Article 5(1)(b) purpose limitation and Article 89 research safeguards, plus FERPA (20 U.S.C. § 1232g) for US institutions handling student records. Horizon Europe data-management plans require an explicit data-residency justification, and institutional IRB or REB approval typically names a specific processor and jurisdiction.

DANIAN configuration: Datacenter region selected to match the data-management plan; institutional SSO via the SAML plugin against Shibboleth, Entra ID, or Okta; AuthLDAP as the fallback against the university directory.

Workflow example: Researcher imports a multi-language questionnaire from an .xlsx translation file, runs a token-invited longitudinal panel with reminder cron jobs, and exports each wave to SPSS using LimeSurvey's syntax-file output so variable labels and value labels round-trip cleanly.

Scale: LimeSurvey is used by 250+ universities and research institutions by the project's own count, with five-year retention windows common for IRB-approved studies.

Regulation: GDPR Article 9 covers health data as a special category, requiring an explicit lawful basis and additional safeguards. National research-ethics laws (Germany's MPG, the UK's HRA framework) add ethics-committee approval requirements. US-side HIPAA covered entities should note that LimeSurvey itself ships no HIPAA features and DANIAN does not currently sign Business Associate Agreements.

DANIAN configuration: Region pinned for ethics-approval traceability; LimeSurvey response encryption enabled via the security.php key file available since version 4; TLS-only SMTP with DKIM and DMARC for patient-invitation delivery; backups encrypted at rest in a separate region.

Workflow example: Patient-reported-outcome wave goes out via token-based invitations; wave matching across follow-ups uses the participant-token table while individual response rows hold no direct identifier. Anonymous one-shot post-treatment surveys use token-less mode so the database itself cannot re-identify respondents.

Scale: 50+ healthcare organisations use LimeSurvey per the project's published figures; clinical-research retention windows of 10–25 years are configured at the host backup-retention policy level.

Regulation: EU Web Accessibility Directive 2016/2102 requires WCAG 2.1 AA conformance for public-sector websites and mobile apps. The EU Tech Sovereignty Package is reported as binding for public-sector procurement from May 2026, which changes the calculus on using US-controlled clouds for citizen-survey data.

DANIAN configuration: Datacenter region chosen to match the procurement specification; LimeSurvey 6's Bootstrap 5 themes and 40+ language support including RTL scripts; the Fruity TwentyThree default theme as a sensible WCAG-friendly starting point that an accessibility auditor can review.

Workflow example: Citizen-consultation survey runs token-less so participation cannot be tied back to identifiable respondents from the database. Aggregate results publish from LimeSurvey's built-in statistics module; raw response data stays inside the instance for the consultation officer.

Scale: 75+ public-sector organisations use LimeSurvey by the project's count; LimeSurvey 6.x ships with 40+ language translations of the admin interface.

Standard: ESOMAR International Code on Market, Opinion and Social Research and the UK MRS Code of Conduct bind member agencies on data handling and respondent treatment. GDPR Article 6(1)(f) legitimate-interests basis applies to most B2B research; B2C panel work usually relies on consent.

DANIAN configuration: Custom subdomain like survey.agency.tld; region picked per client; LimeSurvey quota and randomisation features for conjoint and brand-tracker studies; webhook export to an internal R, Stata, or SPSS pipeline so the agency's analysts work in their own tools.

Workflow example: Multi-country brand tracker with quota-controlled sample (e.g., 200 respondents per market across 8 markets), conjoint built in Expression Manager with 60+ levels, response data exported in R syntax-file format every wave for reproducible analysis.

Scale: LimeSurvey supports conjoint/CBC, MaxDiff, click-map heat tests, tachistoscope, and IAT designs out of the box — the set of research methods that distinguish it from form-style survey SaaS.

Standard: Donor data-protection clauses (FCDO, USAID, GIZ, European Commission programmatic terms) dictate processor jurisdiction for many programmes. Health-adjacent NGOs additionally fall under WHO Ethical Standards in Health Research. GDPR applies where the NGO is EU-based or surveys EU data subjects.

DANIAN configuration: Datacenter region chosen to match the donor agreement; LimeSurvey 6's 40+ language support including Arabic, Hebrew, and Persian with proper RTL rendering; SMTP via the host so field offices do not need a separate transactional-email vendor.

Workflow example: Multi-country household survey distributed by QR code and email invitation; field staff in low-bandwidth regions get LimeSurvey's lightweight default theme; data exported to Stata for the M&E team. Offline-tolerant survey themes work in browsers with intermittent connectivity.

Scale: LimeSurvey is deployed across 160+ countries by the project's count, with the version 6 release supporting 40+ admin-interface languages.

FAQ

Frequently asked questions

Everything teams ask before signing up — answered straight, without sales speak.

Three groups: technical setup, migration, and how DANIAN works as a service.

01

Technical and configuration

LimeSurvey 6.x supports MariaDB, MySQL, PostgreSQL, and Microsoft SQL Server. We use MySQL by default for managed instances because it lines up best with the project's reference test matrix.
The export pipeline reads result rows in 1,000-row chunks, but it still has to fit working memory and finish before the PHP execution timeout. On a vanilla 128M install, exporting a 30,000-response survey with file-upload columns hits a Fatal error in CDbDataReader.php on line 122 — a recurring forum thread across versions 1.91 through 6.x. We run PHP with memory_limit 256M and max_execution_time 1200, which covers the export sizes researchers actually run into.
The software is the same GPL v2-or-later codebase in both. LimeSurvey Cloud and LimeSurvey Pro are managed hosting plans sold by LimeSurvey GmbH directly, with the ComfortUpdate auto-update mechanism bundled and some paid plugins available from their store. DANIAN's managed LimeSurvey is the Community Edition — the same code, with our patching cadence and our SMTP, backups, and support stack around it.
Yes. The Expression Manager supports cross-group question references using {Q01.NAOK}-style notation, and in LimeSurvey 4 and later, evaluated values can be cached in the emcache table for surveys with heavy logic. That matters when a conjoint or MaxDiff design has hundreds of derived calculations — without emcache, the survey re-evaluates every expression on every page transition, which slows the respondent experience to a crawl.
Each survey holds a base language plus any number of additional language versions. The translation workflow is to export the survey's strings as a single file, hand it to a translator, and re-import — no separate translation tool required. LimeSurvey 6 added improved right-to-left support and ships with 40+ admin-interface translations, which matters for agencies handing the admin to clients in their own language.
Custom survey themes are the most likely casualty: on the LimeSurvey 5 to 6 upgrade, all custom themes are uninstalled and reset to Fruity TwentyThree, by design. Community SAML plugins lag the core release by a few weeks at major-version transitions, so SSO sometimes stops working until the plugin is rebuilt against the new auth interface.
A survey can be set to anonymous mode, in which case the response row holds no link back to the participant-token row that admitted the respondent. The token table can still be used to track who completed the survey, but the token-to-response join is severed at submission. For ethics-committee-grade anonymity, run the survey token-less and use a separate invitation channel — that is the only configuration where the database itself does not carry the mapping.
LimeSurvey enforces a per-question file-size limit set in the question's properties; the hard ceiling above that is PHP's upload_max_filesize and post_max_size. Files land under upload/surveys/{sid}/files/ on the survey's host, which means they are part of the survey backup but not part of the response export by default. We set PHP upload limits to 64M and back up the uploaded-files directory alongside the database every night, off-site.
Yes for cross-tabs, frequencies, and chart generation up to several thousand responses. Above that, the chart-rendering side hits the same memory ceiling the export side hits — LimeSurvey uses the GD PHP extension for chart images, and complex multi-question charts on 50,000-response surveys can exhaust the default memory budget. For studies at that scale the practical answer is to export the responses and run analysis in R, SPSS, or Stata using LimeSurvey's syntax files.
ComfortUpdate is LimeSurvey GmbH's auto-update mechanism, and it requires a paid key from their store. We do not use ComfortUpdate on managed instances. We pull updates from the official LimeSurvey GitHub releases, test them in a staging environment that mirrors the customer's configuration, and roll them out on a published cadence. That means the operator never sees a blank page on step 3 of ComfortUpdate because of a PHP memory limit, which is the most common ComfortUpdate failure mode on the LimeSurvey forum.

02

Migration and onboarding

We can activate your app on your own custom domain/subdomain. Examples: mydomain.com, anyword.mydomain.com.
Or, on our randomized free subdomain. Example: 963.apps.danian.cloud
If you wish to use a custom domain/subdomain, select that option when ordering your app (or notify us later). We will send you the required DNS records and if needed, our tech team will modify them for you.
21 datacenter locations across six continents. You choose the region at provisioning. Application data sits in the region you choose; pick whichever is closest to your users or matches your data-residency preference.
Yes. Request a region migration from the dashboard and we run the move in the background. The system emails you when the migration completes; total transfer time depends on data volume but typical instances finish in a few hours. There is no extra charge for a region change.
Yes. Full data export is available at any time, in a portable format you can bring to any infrastructure.
LimeSurvey imports its own .lss (survey structure) and .lsa (survey plus responses) formats natively. SurveyMonkey and Qualtrics exports are not directly importable; the survey structure needs to be rebuilt in LimeSurvey, and response data needs to be reshaped to LimeSurvey's column conventions before bulk-import. For a typical 50-question survey with a few thousand responses, rebuild plus data-mapping is usually a half-day's work for a research assistant familiar with the source tool.
Native exports cover SPSS (data file plus syntax file), R (data file plus syntax file), Stata, plus CSV, TSV, Excel, and the LimeSurvey-specific VV file format. The SPSS and R syntax files are the more useful pair because they preserve variable labels, value labels, and question-text metadata that a flat CSV drops. For longitudinal studies that re-export every wave, syntax-file output is what makes the analysis pipeline reproducible.

03

Billing, support, and platform

€9 covers everything we do for that app: hardware in the region you choose, daily off-site backups with one-click restore, automatic security patches and version upgrades, 24/7 monitoring, SSL and firewall, and engineering support on Email/LiveChat. There are no setup fees or hidden line items. For more info see our Pricing page.
If you decide to continue, we charge €9/app/month from day 8. If you don't, the trial ends and you can export your data. No card is required for the trial, and we never auto-charge you without explicit consent.
No. The €9/month is flat regardless of how many users log into your app. Add 5 users or 50; the price doesn't change.
24/7 Live chat and email support, both staffed by engineers who run the systems. We handle DNS configuration, SMTP setup, app integrations, performance tuning, troubleshooting, and migration help. Response time is typically under an hour. There is no tier system — every customer gets the same support.
Yes. Cancel from the dashboard. We don't charge a cancellation fee, we don't lock data, and we will export your data to you on request before deletion. data to you on request before deletion.
Every customer instance is backed up daily to a separate region from the primary. We test restores. You can request a restore at any backup point within the retention window — usually 7 days for daily backups.
Your application data sits in the region you choose at provisioning — 21 datacenter locations across six continents. Account-level data (billing, account email, support ticket history) is processed centrally. Application data region is picked by you, per app.
99.9% uptime SLA on every app, every tenant. Service credits are documented at danian.co/service-level-agreement. The status page is located at status.danian.co.
When your tenant approaches the resource ceiling — the base tier holds 1 vCPU/RAM, 30 GB storage — we notify you. Resource upgrades happen with your explicit consent; we will not upgrade your tenant or charge you without it.
We wait. We don't suspend the app or delete your data on the first failed charge. We email you, you fix the card on file, and we continue.
Invoices can be downloaded from the billing dashboard in PDF the day each charge succeeds. EU VAT is added where applicable and the VAT-reverse-charge regime applies for VAT-registered businesses with a valid number.
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Yes. Every instance comes with a web-based terminal and a file manager in your DANIAN management dashboard. Useful for managing your data and customizations.
Resources scale with your usage. If your app needs more vCPU, RAM, or storage, we add it — and we ask first before any change to your plan. €9 is the floor; resource-heavy workloads may price higher, but you'll always know in advance.
Yes. We have both a Partner program and an Affiliate program available. Anybody can sign up.
No contract. No minimum commitment. Cancel anytime from the dashboard with one click. The 7-day free trial requires no credit card. After the trial converts to paid, you can still cancel at any month without notice or penalty.

DEPLOY IN YOUR REGION

21 datacenter locations on six continents

Pick the region closest to your users.

United States, Germany, Finland, Singapore, Australia, Brazil, Canada, Netherlands, UK, Spain, Italy, France, Sweden, Malaysia, India, Japan, Mexico, Poland, South Korea, Chile, South Africa and more coming soon

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No card. Cancel from the dashboard.