Secure. Protected. Convenient —— Your signature is only a Touch away.

Using your TouchID or passcode, seal your protected signature onto any PDF document - No Registration. No Cloud Signing. TOTALLY within your device.

Access your cloud documents from within the App or use SignBox Extension to open any PDF document from any other App, simple and straight forward!.

- Use your TouchID to store, protect, and retrieve your Signature.
- Seal your signature onto any PDF, from anywhere with SignBox extension.
- Pay Once!. No Annual Subscription. No Monthly fees.

Why use SignBox:
Secured Signature:
ONLY Accessed by TouchID or passcode. Not stored on any cloud. Your signature remains in your device.

Protect Your Signature:
Your signature will not be editable or copy-able by recipients. Add Open Passwords. Prevent editing, copying or printing after signing.

Convenient Extension:
Sign with SignBox Extension any PDF document from within any of your favorite Apps. All conveniently within your device.

Pixel perfect Signature
Your signature will never look better. Smoothened and inked with vector strokes. Fine print on any scale.

All the tools you need:
Conveniently add your initials, print your name, add date, or even scribble your directives alongside your signature.

No Registration Required:
You don't need to setup an account. No registration. No Cloud account. No Subscription.

Share your documents
Email, print, Save to cloud storage, or simply share to any of your favorite Apps. Run any other extension.

The actual signing process totally happens within your device without it leaving the memory of your device and without communicating to any server. Only your own TouchID or passcode can unlock your signature.

Never give your signature away to cloud server again !

What's New

Version 1.1.0

We’ve been listening to you! This update has some major functional and security additions and improvements.

Newly added Functions
• We’ve introduced a complete Local Library within SignBox to allow you to save, manage your documents for later Signing or for Archive.
• SignBox Share Extension now also lets you share out your signed documents - by using ‘Open-In’ - to any of your favourite apps.

Security Features
Because we highly value privacy and security, we’ve added several new measures taking SignBox security levels to higher grounds. Check out a few here: ( Available through options in a new section: Application Settings )
• You can Lock your Library of documents with your TouchID giving you utmost privacy control when accessing your Library.
• Deleted documents are now securely and totally wiped from the device (no trace).
• You can now also securely sync all your stored Signatures to your own iCloud Account should you wish to re-use them across your other devices (Only accessed with your TouchID-Passcode and-or AppleID).

We have also terminated a lot of the earlier reported bugs within this release !

Would you like us to consider specific features or maybe report an issue? Share your notes on We highly value your feedback.

SignBox Team

Ratings and Reviews

Useful Application

Heba ix

The best thing in this app that I do not have to setup an account.
I can access my documents on iCloud and dropbox through the app and I can use the extension to sign documents from other apps.

It has very useful features :
- Adding initials , dates, names and texts.
- I can set password to protect my signed document.
- I can prevent editing on my document.

Grae app 👍🏻

Omar sharif Fraiwan



Seventh Dimension For System Development Co. LLC
158 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
English, Arabic, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish
Age Rating
Rated 4+
© 2015 applixya™
In-App Purchases
  1. SignBox Upgrade USD 3.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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