Mobile Signing

Sign Documents on Any Device

Touch-to-sign on your phone. SMS delivery for instant signing. QR codes for in-person events. No app download — signers sign in their mobile browser. Included with every $5 envelope.

First AI scan free — no credit card required See pricing

Mobile-First Signing

Sign anywhere. From any device.

Touch-to-Sign

Draw your signature with your finger on any touchscreen. Works on iPhone, Android, iPad, and tablets. No stylus required.

SMS Delivery

Send signing links via text message. Signers tap the link and sign immediately — no email or app needed.

QR Code Signing

Generate a QR code for in-person signing. Attendees scan with their phone camera and sign on their own device.

No App Download

Signers sign in their mobile browser. No app store visit, no account creation, no friction. Just open and sign.

Responsive Design

Documents automatically reflow for mobile screens. Pinch to zoom, scroll to navigate. Signature fields are finger-sized.

Offline Resilience

Signing progress saves locally. If the connection drops, the signature is uploaded when connectivity returns.

How It Works

Mobile signing in 6 steps.

Upload

Upload your document.

Add Signers

Enter phone or email.

Send via SMS

Or email, or QR code.

Signer Taps

Opens in mobile browser.

Touch to Sign

Draw signature on screen.

Done

PDF sealed and delivered.

Pricing

Included with every e-sign ($5)

Mobile signing, SMS delivery, and QR code signing are included in every $5 envelope. No add-on fees. No per-SMS charges. No upgrade required.

First AI scan free — no credit card required

Frequently Asked Questions

Do signers need to download an app?: No. Signers sign directly in their mobile browser. The signing experience is fully responsive and optimized for touch. No app download, no account creation required.
Can I send signing links via text message?: Yes. Enter the signer phone number and ClosingIQ sends an SMS with a secure signing link. The signer taps the link and signs immediately on their phone.
How do QR codes for in-person signing work?: Generate a QR code for any envelope. Display it on a screen or print it. Attendees scan with their phone camera and each person signs on their own device. Great for events, closings, and field work.
Does mobile signing cost extra?: No. Mobile signing is included with every e-signature envelope at $5. SMS delivery, QR codes, and touch-to-sign are all included at no additional charge.
Which devices are supported?: Any device with a modern web browser: iPhone, Android, iPad, tablets, and laptops. Safari, Chrome, Firefox, and Edge are all supported.
Is a mobile signature legally binding?: Yes. Mobile signatures are legally binding under the ESIGN Act, UETA, and eIDAS. The same X.509 digital certificate and SHA-256 audit trail apply regardless of device.

Related Features

E-Signatures Multi-Signer Bulk Send ID Verification All Features

Sign from the job site, the courtroom, or the couch

First AI scan free — no credit card required. Mobile signing included with every envelope.

Start free See pricing

Sign anywhere. From any device.

Touch-to-Sign

Draw your signature with your finger on any touchscreen. Works on iPhone, Android, iPad, and tablets. No stylus required.

SMS Delivery

Send signing links via text message. Signers tap the link and sign immediately — no email or app needed.

QR Code Signing

Generate a QR code for in-person signing. Attendees scan with their phone camera and sign on their own device.

No App Download

Signers sign in their mobile browser. No app store visit, no account creation, no friction. Just open and sign.

Responsive Design

Documents automatically reflow for mobile screens. Pinch to zoom, scroll to navigate. Signature fields are finger-sized.

Offline Resilience

Signing progress saves locally. If the connection drops, the signature is uploaded when connectivity returns.

Frequently Asked Questions

Do signers need to download an app?

No. Signers sign directly in their mobile browser. The signing experience is fully responsive and optimized for touch. No app download, no account creation required.

Can I send signing links via text message?

Yes. Enter the signer phone number and ClosingIQ sends an SMS with a secure signing link. The signer taps the link and signs immediately on their phone.

How do QR codes for in-person signing work?

Generate a QR code for any envelope. Display it on a screen or print it. Attendees scan with their phone camera and each person signs on their own device. Great for events, closings, and field work.

Does mobile signing cost extra?

No. Mobile signing is included with every e-signature envelope at $5. SMS delivery, QR codes, and touch-to-sign are all included at no additional charge.

Which devices are supported?

Any device with a modern web browser: iPhone, Android, iPad, tablets, and laptops. Safari, Chrome, Firefox, and Edge are all supported.

Is a mobile signature legally binding?

Yes. Mobile signatures are legally binding under the ESIGN Act, UETA, and eIDAS. The same X.509 digital certificate and SHA-256 audit trail apply regardless of device.