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Head-to-head · E-Signature APIs Software

Dropbox Sign vs OneSpan Sign

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Dropbox Sign #3 in E-Signature APIs Software 9.0/10 Free plan · 30-day trial Free planFree trial✓ 0 of 3 features Visit Dropbox Sign
OneSpan Sign #4 in E-Signature APIs Software 8.8/10 30-day trial Free trial✓ 0 of 3 features Visit OneSpan Sign

Dropbox Sign leads on 2 checks, OneSpan Sign on 0, 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

  • Highest scoreDropbox Sign · 9.0/10
  • Lowest starting priceDropbox Sign · $10.05/mo
  • Free planonly Dropbox Sign
  • Free trialboth

Dropbox Sign scores higher on our rubric for e-signature apis software: 9.0 against 8.8 out of 10; our editors rank them #3 and #4.

Dropbox Sign offers free plan; OneSpan Sign doesn't. Dropbox Sign is cheaper to start at $10.05/mo against $22/mo.

Dropbox Sign is the better fit for teams needing API signing with mobile support. OneSpan Sign is the better fit for enterprises prioritizing controlled signing workflows.

  • Dropbox Sign fits best

    Teams needing API signing with mobile support

  • OneSpan Sign fits best

    Enterprises prioritizing controlled signing workflows

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Dropbox Sign 9.0/10 Visit ↗ OneSpan Sign 8.8/10 Visit ↗
At a glance
Editor score 9.0 8.8
Ranking #3 in E-Signature APIs Software #4 in E-Signature APIs Software
Best for Teams needing API signing with mobile support Enterprises prioritizing controlled signing workflows
Pricing model Free plan + paid Paid
Starting price $10.05/mo (best) $22/user/mo
Free plan ✓ (best) —
Free trial 30 days 30 days
Free trial length 30 days 30 days
Deployment Cloud, Mobile Cloud, Mobile
Platforms Web, iOS, Android Web, iOS, Android
Support Email, Live chat, Tickets, Docs Email, Phone, Community, Docs
Compliance SOC 2, ISO 27001, GDPR, SSO/SAML, 2FA SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML
Integrations 15 integrations 13 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Dropbox Sign 0/3 · OneSpan Sign 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
Pros
  • API and embedded signing workflows support in-product signature journeys.
  • Audit trails, signing-order workflows, and signer authentication tools.
  • Web and mobile apps plus integrations with business applications.
  • 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.
Cons
  • The Free plan allows 3 signature requests per month.
  • Essentials is an individual plan with 5 templates.
  • Premium is a custom plan for large teams.
  • 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.
Our verdict

Dropbox Sign helps individuals, teams, and organizations send documents for electronic signature, track progress, and save completed agreements. Its API and embedded signing workflows make it relevant to teams that want signing inside…

Read the review →

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 →
  1. Dropbox SignE-Signature APIs Software 9.0Free plan · 30-day trial
  2. OneSpan SignE-Signature APIs Software 8.830-day trial

Strengths and trade-offs

  • Dropbox Sign — where it wins

    • API and embedded signing workflows support in-product signature journeys.
    • Audit trails, signing-order workflows, and signer authentication tools.
    • Web and mobile apps plus integrations with business applications.

    Where it doesn't

    • The Free plan allows 3 signature requests per month.
    • Essentials is an individual plan with 5 templates.
    • Premium is a custom plan for large teams.

  • 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.

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