Stack AI vs Tally
A detailed comparison to help you choose between Stack AI and Tally.
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Verdict: Tally wins
Tally scores 4.3/5, edging out Stack AI at 3.5/5. Founders, marketers, and small teams who want to collect form responses — including payments and signatures — without paying for a form platform, and who are comfortable in a document-style editor.
Stack AI Build AI workflows and apps without code | Tally Build forms without code in minutes | |
|---|---|---|
| Rating | 3.5 (1 review) | 4.3 (1 review) |
| Pricing Model | freemium | freemium |
| Starting Price | Free tier available | Free tier available |
| Best For | Enterprise and IT-led teams building secure internal AI tools and document workflows — particularly those already using Asana — who can run a pilot and negotiate a custom contract. | Founders, marketers, and small teams who want to collect form responses — including payments and signatures — without paying for a form platform, and who are comfortable in a document-style editor. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tierno codesso | free tierno code |
| Visit Stack AI → | Visit Tally → |
Stack AI
Pros
- + Model-agnostic node canvas: any LLM behind the graph, with structured JSON outputs validated in-flow in my build
- + Document AI with working citations — outputs pointed at the right source PDFs in my spot checks
- + Enterprise compliance posture: Trust Center, HIPAA BAA path, on-prem deployment and dedicated infrastructure on Custom
- + Genuinely free entry point at 500 runs/month with no card, plus live docs, Academy, changelog and public status page
- + Acquired by Asana (May 2026) — potential distribution and workflow integration upside for teams already in that ecosystem
Cons
- - Acquired by Asana for a reported $75M in May 2026 — roadmap and pricing stability need contractual clarity before multi-year deals
- - No self-serve paid tier: 500 runs/2 projects on Free, then custom-negotiated pricing with nothing published in between
- - Third-party pricing roundups disagree wildly ($49–$199/mo) and are not vendor-confirmed — do not budget from aggregators
- - Denser, less polished UI than consumer-grade builders; overbuilt for simple FAQ-style use cases
- - Free tier (500 runs) is about one serious build-and-debug session — too tight for a real evaluation month
Tally
Pros
- + Free tier is production-usable: unlimited forms and submissions with conditional logic, payments, signatures, and no watermark — I built a working intake workflow without paying
- + Document-style editing was the fastest form creation I have tested; a multi-field form with logic went live in under five minutes
- + Native Notion, Airtable, Google Sheets, Zapier, Make, and webhook integrations cover the standard small-team automation loop on the free plan
- + EU data storage with GDPR compliance and encryption at rest — a structural advantage for European buyers over US-hosted form tools
- + Transparent competitive positioning: their own comparison pages state rival starting prices (e.g. Formstack from $83/month) instead of vague claims
Cons
- - Free uploads cap at 10MB per file — this is the limit I actually hit with respondent documents; uncapping requires Pro
- - "Unlimited" is governed by a fair-use policy (roughly 500K submissions/month named as extensive), not a contractual right
- - No SSO, SLA, or HIPAA story on any plan at time of writing — enterprise governance is thin
- - Layout control is limited without writing custom CSS on Pro; this is not a visual design tool
- - Complex conditional branching has a real learning curve despite the simple interface
Frequently Asked Questions
Which is better, Stack AI or Tally?▼
Tally scores higher at 4.3/5 vs 3.5/5 for Stack AI, making it the better-rated option in our comparison.
What is the difference between Stack AI and Tally?▼
Stack AI: Stack AI is a drag-and-drop platform for building AI agents and internal applications, aimed at enterprise deployment and compliance. Tally: Tally is a form builder that works like a text document: you type, and the fields appear. Unlimited forms and responses are free.
Is Stack AI or Tally more affordable?▼
Stack AI starts at €0/mo, Tally starts at €0/mo. Check the comparison table above for current pricing.
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