Side by side
Formstack Sign vs Legalesign API
Both stand on e-signature software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid AndroidAPIiPhone+1
Formstack Sign combines digital document delivery, structured signing fields, templates, and business-system connections. Buyers should account for annual Suite billing, its delivery allowance, and the document-size restriction.
Visit Formstack Sign Free trial APIWeb
Legalesign API combines document workflows with embedding, integrations, and live event reporting. Its approval requirement and mobile-form limitation are important considerations for implementation.
Visit Legalesign APIThe facts
| Formstack Sign | Legalesign API | |
|---|---|---|
| Free plan | No | A free trial |
| Open source | Not published | Not published |
| Runs on | Android, API, iPhone, Web | API, Web |
| Lowest paid plan | Suite: $250 a month | Solo Basic: £10 a month |
| Plans published | 1 | 5 |
| Maker | Formstack Sign | Legalesign API |
| Website | formstack.com | legalesign.com |
| On e-signature software | #52 of 68 | #48 of 68 |
Formstack Sign: what it does well
- Email and SMS signing requests with reminders
- Sequential signing for multiple signers
- DOCX, PDF, PPTX, and CSV uploads
- Audit trails, bulk sending, and API access
- Unlimited eSignatures in Suite
What to know first
- No free plan
- Suite billed annually
- 250 monthly document deliveries in Suite
- Documents limited to 8.5-by-11 inches
Legalesign API: what it does well
- REST and GraphQL APIs with SDK
- Supports up to 99 recipients
- Embeddable signing pages and custom domains
- Real-time webhooks and WebSockets
- Two-factor authentication included
What to know first
- No free plan
- API credentials require prior approval
- Complex mobile forms may not work well
- Sandbox REST API limited to 100 calls hourly
Alternatives to Formstack Sign Alternatives to Legalesign API The whole list