Head-to-head · E-Signature APIs Software
OneSpan Sign vs BoldSign
OneSpan Sign leads on 0 checks, BoldSign on 2, and 0 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Lowest starting priceBoldSign · $5/user/mo
- Free planonly BoldSign
- Free trialboth
OneSpan Sign and BoldSign score identically on our rubric (8.8 out of 10) for e-signature apis software; OneSpan Sign sits at #4 and BoldSign at #5 in our editorial ranking, so the choice comes down to fit.
BoldSign offers free plan; OneSpan Sign doesn't. BoldSign is cheaper to start at $5/mo against $22/mo.
OneSpan Sign is the better fit for enterprises prioritizing controlled signing workflows. BoldSign is the better fit for budget-conscious teams needing API and bulk workflows.
- OneSpan Sign fits best
Enterprises prioritizing controlled signing workflows
- BoldSign fits best
Budget-conscious teams needing API and bulk workflows
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Side by side
| Feature | OneSpan Sign 8.8/10 Visit ↗ | BoldSign 8.8/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.8 | 8.8 |
| Ranking | #4 in E-Signature APIs Software | #5 in E-Signature APIs Software |
| Best for | Enterprises prioritizing controlled signing workflows | Budget-conscious teams needing API and bulk workflows |
| Pricing model | Paid | Free plan + paid |
| Starting price | $22/user/mo | $5/user/mo (best) |
| Free plan | — | ✓ (best) |
| Free trial | 30 days | 30 days |
| Free trial length | 30 days | 30 days · no card needed |
| Deployment | Cloud, Mobile | Cloud, Mobile |
| Platforms | Web, iOS, Android | Web, iOS, Android |
| Support | Email, Phone, Community, Docs | Email, Live chat, Phone, Docs |
| Compliance | SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML | SOC 2, GDPR, HIPAA, SSO/SAML, 2FA |
| Integrations | 13 integrations | 10 integrations |
| Built for | Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features OneSpan Sign 0/3 · BoldSign 0/3 | ||
| Sandbox environment | Not checked yet | Not checked yet |
| Webhook events | Not checked yet | Not checked yet |
| Bulk sending | Not checked yet | Not checked yet |
| Specs | ||
| Monthly envelope limit | Not checked yet | Not checked yet |
| Signing methods | Not checked yet | Not checked yet |
| SDK languages | Not checked yet | Not checked yet |
| Our review | ||
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| Our verdict | OneSpan Sign is an electronic-signature platform for professionals, businesses and enterprises that need structured digital agreement workflows. It combines reusable document templates with sequential or parallel signing, signer… Read the review → |
BoldSign brings electronic signing, document workflows, and e-signature APIs together for individuals, small businesses, teams, and enterprises. It supports reusable templates, signer authentication, configurable signing order, and… Read the review → |
Strengths and trade-offs
OneSpan Sign — where it wins
- Supports sequential and parallel signing with signer groups and permissions.
- Detailed, time-stamped audit trails and SMS signer authentication.
- Enterprise plan adds API access, embedded signing, bulk send and SSO.
Where it doesn't
- Professional is capped at 1,000 transactions per user annually.
- Enterprise uses volume-based pricing rather than a published fixed price.
- The offer is a 30-day trial, not a perpetual free plan.
BoldSign — where it wins
- Free Essential plan includes 25 envelopes/month and an audit trail
- Embedded signing, requesting, templates, API dashboard, and webhooks
- Integrates with Salesforce, HubSpot, Zapier, and cloud storage
Where it doesn't
- Growth limits usage to 50 envelopes/month per user
- Bulk send is an add-on on Premium
- Enterprise API includes 40 API envelopes per month
- OneSpan Sign8.8/10 · 30-day trial
A controlled signing platform for organizations embedding or scaling digital agreements.
Visit OneSpan SignFull verdict → - BoldSign8.8/10 · Free plan · 30-day trial
A flexible e-signature service with a free tier and a dedicated embedded-signing API plan.
Visit BoldSignFull verdict →
More comparisons
All E-Signature APIs software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update