20 Best Electronic Signature Apps for Mobile & Desktop (2026)

DocuSign offers the best overall mobile experience, SignNow provides the best value at $8/user/month, and Adobe Fill & Sign tops the free options. We tested 20+ apps to find the best electronic signature apps for mobile and desktop.

Best Mobile E-Signature Apps

1. DocuSign Mobile

Best overall mobile e-signature experience

Why it's great:

• Polished mobile experience
• Sign documents received via email
• Send documents for signature from phone
• Offline signing capability
• Touch ID/Face ID support

Mobile features:

• ✅ Sign documents
• ✅ Send for signature
• ✅ Use templates
• ✅ Track status
• ✅ In-person signing

Best for: Business users who need full functionality on mobile.

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2. SignNow

Best value mobile signing app

Why it's great:

• Complete feature set on mobile
• Excellent value
• Intuitive interface
• Works offline
• Good integration options

Mobile features:

• ✅ Sign and send
• ✅ Templates
• ✅ Bulk send
• ✅ Team collaboration
• ✅ API access

Best for: SMBs wanting full mobile functionality at a great price.

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3. Adobe Fill & Sign

Best free mobile signing app

Why it's great:

• Completely free
• Automatic form field detection
• Camera capture for documents
• Syncs with Adobe Document Cloud
• Clean interface

Mobile features:

• ✅ Sign PDFs
• ✅ Fill forms
• ✅ Scan documents
• ❌ Send for signature (requires paid)
• ✅ Save signatures

Best for: Individuals who receive documents to sign.

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4. HelloSign Mobile

Simplest mobile signing experience

Why it's great:

• Extremely easy to use
• Fast signing process
• Dropbox integration
• Real-time notifications
• Professional appearance

Mobile features:

• ✅ Sign documents
• ✅ Send for signature
• ✅ Use templates
• ✅ Track documents
• ✅ Team features

Best for: Users who prioritize simplicity.

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5. PandaDoc

Best for sales proposals on mobile

Why it's great:

• Create documents on mobile
• CRM integration
• Track engagement
• Payment collection
• Analytics dashboard

Mobile features:

• ✅ Sign documents
• ✅ Create proposals
• ✅ Send for signature
• ✅ Track views
• ✅ Collect payments

Best for: Sales professionals on the go.

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Free E-Signature Apps

6. PDF Expert (iOS)

Best iOS PDF app with signing

Features:

• Excellent PDF reading/editing
• Signature support
• Apple Pencil optimization
• iCloud sync

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7. Xodo

Best free cross-platform PDF signer

Features:

• Free with no limits
• Sign PDFs
• Annotate documents
• Cloud storage integration
• Collaborate on documents

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8. SignEasy

Simple mobile-first signing

Features:

• Mobile-first design
• Import from cloud services
• Self-signing and send
• Templates
• Team features

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9. DocuSign Free

Free signing from industry leader

Features:

• Sign documents for free
• Industry-standard platform
• Secure and trusted
• Syncs across devices

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10. Preview (Mac Built-in)

Free Mac signing without downloads

Features:

• Already on your Mac
• Trackpad signature capture
• Camera signature capture
• Quick and easy

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Business E-Signature Apps

11. Zoho Sign

For Zoho ecosystem users

Features:

• Zoho integration
• Workflow automation
• Templates
• Audit trails
• Aadhaar signing (India)

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12. Nitro Sign

PDF productivity with signing

Features:

• PDF editing included
• Unlimited signatures
• Templates
• Team features
• Windows optimization

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13. SignWell

Affordable team signing

Features:

• Simple interface
• Templates
• Team collaboration
• API access
• Affordable pricing

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14. Eversign

Simple signing for individuals

Features:

• In-person signing
• Templates
• Basic integrations
• Simple pricing
• Document storage

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15. SignRequest

Budget European option

Features:

• GDPR compliant
• eIDAS compatible
• Templates
• Team features
• API access

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Specialized E-Signature Apps

16. Dotloop

Real estate e-signatures

Features:

• Real estate templates
• Transaction management
• MLS integration
• Compliance tools
• Team collaboration

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17. RightSignature

Property management signing

Features:

• In-person signing
• Templates
• Real estate workflows
• Mobile optimization
• ShareFile integration

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18. Formstack Sign

Form + signature workflows

Features:

• Forms + signatures
• Workflow automation
• Data collection
• Integrations
• Conditional logic

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19. Foxit eSign

For Foxit PDF users

Features:

• Foxit PDF integration
• Full signing features
• Templates
• Audit trails
• Competitive pricing

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20. OneSpan Sign

Enterprise mobile signing

Features:

• Bank-grade security
• Advanced authentication
• White-label options
• Compliance focus
• API access

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Comparison by Platform

Best iOS Apps

Best Android Apps

Best Desktop Apps

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How to Choose

By Primary Device

By Budget

By Use Case

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Frequently Asked Questions

Can I sign documents on my phone legally?

Yes. Mobile signatures are just as legally valid as desktop signatures under the ESIGN Act and similar laws. The device you use doesn't affect legal validity.

What's the best free e-signature app?

Adobe Fill & Sign is best for signing documents you receive. Xodo offers free cross-platform signing. For sending documents, PandaDoc offers free unlimited e-signatures.

Do I need different apps for iPhone and Android?

Most e-signature services offer apps for both platforms. If your team uses mixed devices, choose a service with good apps on both (DocuSign, SignNow, HelloSign).

Can I use e-signature apps offline?

Some apps offer offline signing (DocuSign, SignNow). Documents sync when you're back online. Check specific app capabilities for offline use.

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Conclusion

Our top recommendations:

For most users, SignNow offers the best combination of mobile experience, features, and price. Power users and enterprises should consider DocuSign for its polish and integrations.

Related reading:

• How to sign a PDF
• Free signature software
• DocuSign alternatives

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Last updated: January 28, 2026

Disclaimer: App ratings and pricing change frequently. Verify current information on app stores and vendor websites.