GrowthBook vs Tally
Open-source feature flags + experimentation — Warehouse Native
vs. Free, unlimited online forms — the Notion-style form builder
Pricing tiers
GrowthBook
Open Source (Self-Host)
MIT-licensed. Unlimited everything. Community support.
$0 base (usage-based)
Cloud — Starter (Free)
Up to 3 users. Unlimited flags + experiments. Warehouse Native included.
Free
Cloud — Pro
$40/user/month. Up to 50 users. Advanced stats, visual A/B editor, CUPED, sequential testing, bandits.
$40/mo
Cloud — Enterprise
Custom. Unlimited users, SSO/SAML, approval flows, data pipelines, exportable audit logs.
Custom
Self-Host Enterprise
Open Source + Enterprise license. Visual A/B editor, advanced metrics, SSO/SAML, approvals, training.
Custom
Tally
Free
$0. Unlimited forms, unlimited responses, unlimited fields. Tally branding. Basic question types.
Free
Pro
$29/mo. Remove branding, custom domain, conditional logic, calculations, form logic, file uploads, Stripe integration, webhooks.
$29/mo
Business
$89/mo. Workspaces, custom email domain, priority support, team collaboration.
$89/mo
Free-tier quotas head-to-head
Comparing oss on GrowthBook vs free on Tally.
| Metric | GrowthBook | Tally |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
GrowthBook · 15 features
- Approval Flows — Require reviewer approval on flag changes. Enterprise.
- Audit Logs — Full change history. Exportable on Enterprise.
- Dimensions & Slicing — Break down experiment results by user dimensions.
- Edge SDK Support — Cloudflare Workers, Lambda@Edge, Fastly, Akamai EdgeWorkers, Netlify Edge.
- Experiments — A/B/n with CUPED variance reduction + sequential testing.
- Feature Flags — Boolean + string + number + JSON flags with targeting.
- Feature Reviews (PR-style) — Draft → review → approve flag changes.
- Guardrail Metrics — Auto-monitor key metrics during experiments.
- Metric Catalog — Define + reuse metrics across experiments.
- Multi-Armed Bandits — Adaptive traffic allocation. Pro+.
- Safe Rollouts — Guarded gradual rollouts with automatic rollback.
- SSO / SAML — Enterprise SSO for cloud + self-host EE.
- Sticky Bucketing — User stays in variant even after eligibility changes.
- Visual A/B Test Editor — No-code DOM editor for web experiments. Pro+.
- Warehouse Native — Connect your warehouse + run experiments against your events data.
Tally · 13 features
- Calculator + Variables — Formulas + variables in questions (Pro).
- Conditional Logic — Show/hide, skip logic (Pro).
- Custom Domain — forms.yoursite.com (Pro).
- Embed Anywhere — Inline, popup, slider — any site.
- E-Signatures — Signature capture block.
- File Uploads — Accept file attachments (Pro).
- Notion-like UX — Block-based editor with slash commands.
- Question Types — 20+ field types (text, choice, file, rating, signature).
- Stripe Payments — Accept payments via Stripe (Pro).
- Template Library — 1,000+ community templates.
- Unlimited Free Plan — Unlimited forms + responses on Free.
- Webhooks — Real-time submission events (Pro).
- Workspaces — Team collaboration (Business).
Developer interfaces
| Kind | GrowthBook | Tally |
|---|---|---|
| SDK | Edge SDKs (CF Workers / Lambda@Edge / Fastly / Akamai), growthbook-android, growthbook-flutter, growthbook-go, growthbook-java, growthbook-node, growthbook-php, growthbook-python, growthbook-ruby, growthbook-swift, sdk-javascript, sdk-react | Popup / Slider API |
| REST | GrowthBook REST API | Tally API |
| OTHER | Webhooks | Form Embed Script, Tally Web Editor, Tally Webhooks |
Staxly is an independent catalog of developer platforms. Some links to GrowthBook and Tally may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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