Head-to-head · Digital Signature API Software
BoldSign vs Signater
BoldSign leads on 0 checks, Signater on 4, and 1 is even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreBoldSign · 8.4/10
- Free planboth
- Most featuresSignater · 4 of 5
BoldSign scores higher on our rubric for digital signature api software: 8.4 against 6.9 out of 10; our editors rank them #2 and #7.
Signater offers identity verification; BoldSign doesn't publish it. Signater offers workflow status api; BoldSign doesn't publish it. Signater offers signed-file retrieval; BoldSign doesn't publish it. Signater offers sandbox environment; BoldSign doesn't publish it.
BoldSign is the better fit for API buyers prioritizing low cost and breadth. Signater is the better fit for developers needing identity and white-label controls.
- BoldSign fits best
API buyers prioritizing low cost and breadth
- Signater fits best
Developers needing identity and white-label controls
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Side by side
| Feature | BoldSign 8.4/10 Visit ↗ | Signater 6.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.4 | 6.9 |
| Ranking | #2 in Digital Signature API Software | #7 in Digital Signature API Software |
| Best for | API buyers prioritizing low cost and breadth | Developers needing identity and white-label controls |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | Not published | $39/mo |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud, Mobile | Cloud, Browser extension |
| Platforms | Web, iOS, Android | Web, iOS, Android |
| Support | Email, Live chat, Phone, Docs | Email, Live chat, Docs |
| Compliance | SOC 2, GDPR, HIPAA, SSO/SAML, 2FA | GDPR, 2FA |
| Integrations | 10 integrations | 6 integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features BoldSign 0/5 · Signater 4/5 | ||
| Embedded signing | Not published | Not published |
| Identity verification | Not published | ✓ (best) |
| Workflow status API | Not published | ✓ (best) |
| Signed-file retrieval | Not published | ✓ (best) |
| Sandbox environment | Not published | ✓ (best) |
| Specs | ||
| SDK languages | Not published | Not published |
| Webhook event types | Not published | 10 |
| Our review | ||
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| Our verdict | BoldSign is an electronic-signature platform for individuals, small businesses, teams, and enterprises. It supports document-signing workflows, reusable templates, audit trails, signer authentication, configurable signing order, and… Read the review → |
Signater is a cloud-based electronic-signature platform for businesses that send, authenticate, track, and store signed documents. It is aimed at developers and teams that need programmable envelope workflows, configurable signer… Read the review → |
Strengths and trade-offs
BoldSign — where it wins
- Free plan with 25 envelopes and audit trails
- Embedded signing, requesting, templates, APIs, and SDK integrations
- AI tools plus Salesforce, HubSpot, Zapier, and cloud storage integrations
Where it doesn't
- Essential limits usage to 25 envelopes and two templates monthly
- Bulk sending is an add-on on the Premium plan
- Enterprise API includes 40 API envelopes per month
Signater — where it wins
- REST API, webhooks, sandbox, and signed-document retrieval
- Identity checks include selfie, liveness, SMS, email, and certificates
- Enterprise supports white-label branding and managed accounts for resale
Where it doesn't
- API access is limited to Business and Enterprise plans
- Free plan allows only 3 envelopes per month and 1 user
- Enterprise pricing starts at $499 monthly or $299 monthly annually
- BoldSign8.4/10 · Free plan · paid from $5/user/mo (annual) · 30-day trial
A low-cost signing platform with broad workflow, integration, and API coverage.
Visit BoldSignFull verdict → - Signater6.9/10 · Free plan · paid from $39/mo
A developer-focused signing platform with strong identity and white-label options.
Visit SignaterFull verdict →
More comparisons
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- DocuSign eSignature vs Signater
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- BoldSign vs signNow
- BoldSign vs Foxit eSign
- BoldSign vs Xodo Sign (formerly eversign)
- BoldSign vs emSigner API
- Zoho Sign vs Signater
All digital signature API software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
Last updated · How we research and update