What are the best apps for online signatures?

Top online signature apps: iContract (free, AI contracts included), DocuSign (enterprise leader), Adobe Acrobat Sign (PDF-native), Dropbox Sign (clean UX), PandaDoc (sales-focused), and SignNow (budget). All are ESIGN/eIDAS-compliant in the US, EU, and 60+ countries.

Online signature apps in 2026 — quick comparison:

iContract — Free tier with unlimited signing for personal/SMB use. AI contract generation built in. ESIGN/eIDAS-compliant. Mobile-first. Best free option.

DocuSign — $15-65/user/month. Market leader, deepest integrations (Salesforce, Microsoft 365, Google Workspace). Enterprise-grade audit trail. Pricing scales fast.

Adobe Acrobat Sign — $14.99/mo. Native Adobe Creative Cloud integration. Best for PDF-heavy workflows.

Dropbox Sign / HelloSign — $20/mo. Clean modern UX, great developer API. Native Dropbox integration.

PandaDoc — $19-49/user/mo. Combines proposals, quotes, contracts, e-signature, CPQ. Best for sales teams.

SignNow by airSlate — $8/mo. Cheapest serious option. Solid for high-volume basic signing.

Foxit eSign — $8/mo. Budget enterprise.

SignWell (formerly Docsketch) — $10/mo. Simple UX, growing developer-friendly platform.

Eversign / Signaturely — $10-20/mo. Mid-market.

Notarize / Proof.com — $25/notarization. For notarized signatures (RON).

  • Cheapest: iContract free.
  • Best UX: iContract or Dropbox Sign.
  • Most integrations: DocuSign.
  • Best for sales: PandaDoc.
  • Best for PDFs: Adobe Sign.
  • Best mobile: iContract.
  • Best API: Dropbox Sign or DocuSign.
  • For notarization: Notarize / Proof.
  • ESIGN Act (US, 2000).
  • UETA (49 US states).
  • eIDAS (EU).
  • PIPEDA (Canada).
  • Electronic Communications Act (UK).
  • Equivalents in 60+ countries.
  • Document hash.
  • Signer email + IP.
  • Timestamp of view, sign, complete.
  • Authentication method.
  • Browser/device.
  • Free for personal use: iContract.
  • Free trials: DocuSign (3/mo), Dropbox Sign (3/mo), Adobe Sign (free Reader).
  • Paid sweet spot: $10-20/mo for solo professionals.
  • Enterprise: $30+/user/mo for SSO, advanced workflow, compliance reporting.

Start with iContract free. Upgrade to specialized tools only when volume or features justify.

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