Pricing Units, Proprietary Limits & Migration Complexity
The operational fine print U.S. SaaS founders and small business owners check before committing.
| Evaluation Dimension | Kiln | LimeSurvey |
|---|---|---|
| Starting Price & Billing Unit How your monthly bill scales | Free / $15/mo Indie Pro Plan Flat Workspace Plan | $0 Open Source (Open Source) Flat Workspace Plan |
| Free Tier & Included Quotas Sandbox vs production allowance | Kiln Free / Starter Tier tier (core forms, surveys & lead capture capabilities); Indie Pro Plan upgrades start at $15/mo | LimeSurvey is self-hostable (Open Source) at $0 license cost |
| Proprietary Limits & Gotchas Caps, lock-in & overage cliffs | Kiln tier notes — Flat-Rate Small Business Pricing: Founder-friendly transparent pricing; Full API & Webhooks: Modern web & API access | LimeSurvey tier notes — Flat-Rate Small Business Pricing: 100% free & open-source; Full API & Webhooks: Full source & API access |
| Migration Complexity Engineering & ops switching effort | Low (< 30 mins) Configure Kiln (Flat-Rate Small Business Pricing, Full API & Webhooks) and import existing forms, surveys & lead capture records | Low (< 30 mins) Configure LimeSurvey (Flat-Rate Small Business Pricing, Full API & Webhooks, Self-Hostable / Open Source) and import existing forms, surveys & lead capture records |
| Target Company Stage Best operational fit | Solo Founders & Forms, Surveys & Lead Capture SMBs | Solo Founders & Forms, Surveys & Lead Capture SMBs |
| Data Privacy & Compliance U.S. & enterprise governance | GDPR / CCPA ReadyFlat-Rate Small BusinessTransparent USD Pricing | Open Source / Self-HostGDPR / CCPA ReadyFlat-Rate Small Business |
Interactive Workload & Infrastructure Cost Simulator
Compare realistic monthly & annual platform spend by production workload stage (not fake per-seat math).
Kiln: Flat Workspace Plan
LimeSurvey: Flat Workspace Plan
Estimated Annual Savings with LimeSurvey: $180/yr
Saves ~100% annually at this workload tier based on published USD rates.
Technical Capability Matrix
Side-by-side feature, API, and data-ownership checklist.
| Feature Specification | Kiln | LimeSurvey |
|---|---|---|
| Flat-Rate Small Business Pricing pricing | Supported Founder-friendly transparent pricing | Supported 100% free & open-source |
| Full API & Webhooks developer | Supported Modern web & API access | Supported Full source & API access |
| Self-Hostable / Open Source infrastructure | Not Included | Supported Open Source repository |
Official Published USD Pricing Tiers
Verified plan structure for Kiln and LimeSurvey.
Kiln Plans USD Verified
Free / Starter Tier
monthly
Indie Pro Plan
monthly
LimeSurvey Plans USD Verified
Free / Open Source
monthly
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Frequently Asked Questions
Key pricing, quota, migration, and security answers for Kiln vs LimeSurvey.
What is the main difference between Kiln and LimeSurvey in 2026?
Kiln (Free / $15/mo Indie Pro Plan, billed by flat workspace plan) is best suited for: A WebGPU alternative to transformers.js, 2.2× faster (median) By contrast, LimeSurvey ($0 Open Source (Open Source), billed by flat workspace plan) is best for: 🔥 LimeSurvey – A powerful, open-source survey platform. A free alternative to SurveyMonkey, Typeform, Qualtrics, and Go
How do Kiln and LimeSurvey compare on free tiers and USD pricing?
Kiln: Kiln Free / Starter Tier tier (core forms, surveys & lead capture capabilities); Indie Pro Plan upgrades start at $15/mo. LimeSurvey: LimeSurvey is self-hostable (Open Source) at $0 license cost. Always compare based on your real workload metric (Flat Workspace Plan vs Flat Workspace Plan) rather than headline base tier alone.
What proprietary feature limits or overages should founders watch out for?
On Kiln: Kiln tier notes — Flat-Rate Small Business Pricing: Founder-friendly transparent pricing; Full API & Webhooks: Modern web & API access. On LimeSurvey: LimeSurvey tier notes — Flat-Rate Small Business Pricing: 100% free & open-source; Full API & Webhooks: Full source & API access.
How difficult is migrating from LimeSurvey to Kiln, and what compliance is supported?
Estimated migration effort to Kiln is Low (< 30 mins) (Configure Kiln (Flat-Rate Small Business Pricing, Full API & Webhooks) and import existing forms, surveys & lead capture records). Security & data governance signals for Kiln include GDPR / CCPA Ready, Flat-Rate Small Business, Transparent USD Pricing, while LimeSurvey offers Open Source / Self-Host, GDPR / CCPA Ready, Flat-Rate Small Business.
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