# Formstack vs Tally (slim)

> Tally scores 60.6 (C) on agent readiness against Formstack's 49 (D), and leads in 6 of 7 scored categories. Both do forms create. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/formstack-vs-tally.md (~2,150 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/formstack-vs-tally.json · canonical https://www.anchorterminal.com/compare/formstack-vs-tally
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Tally scores 60.6 (C) on agent readiness against Formstack's 49 (D), and leads in 6 of 7 scored categories. Both do forms create.

- Formstack: D 49, rank #616 of 722 · https://www.anchorterminal.com/tools/formstack.min.md
- Tally: C 60.6, rank #395 of 722 · https://www.anchorterminal.com/tools/tally.min.md
- Formstack, good for An organisation that already runs Formstack Forms, has bought the API add-on and wants an agent to build forms, read or search submissions and manage signed webhooks, including HIPAA and PCI use.
- Tally, good for An agent that builds a form from a description, publishes it and reads the answers for an owner on a small budget, since the whole API is free. Ahead on Reliability, 75 against 63; Schema & documentation, 82 against 69; Payments & pricing, 30 against 15; Maintenance & community, 66 against 20; Transparency & trust, 73 against 64.

| Category | Formstack | Tally |
| --- | --- | --- |
| Reliability (16%) | 63 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 69 | 82 |
| Agent ergonomics (13%) | 52 | 50 |
| Security & auth (14%) | 43 | 47 |
| Payments & pricing (10%) | 15 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 20 | 66 |
| Transparency & trust (7%) | 64 | 73 |

| Fact (where they differ) | Formstack | Tally |
| --- | --- | --- |
| Vendor | Intellistack, LLC | Tally BV |
| Hosted endpoint | `https://www.formstack.com/api/v2025` | `https://api.tally.so` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | Token | OAuth or key |
| Pricing | Paid | Freemium |
| Licence | Proprietary service under the Intellistack Software Services Agreement. No vendor SDK or open-source client was found | Proprietary service under Tally's terms and conditions. The OpenAPI spec names MIT as its own licence |
| Last release | 2026-06-18 | 2026-09-11 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | no date given |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |