SignBulb
Sign Documents With Confidence
About
Easily and securely sign documents digitally from your mobile device. This app streamlines the process of signing, eliminating the need for printing, scanning, and mailing physical papers.
What's New in SignBulb
2.0.17
February 24, 2026
Document Password Protection: Add a password to completed documents for secure access. DOC & DOCX Upload: Upload and use DOC or DOCX files directly — no conversion required. Flexible Radio Button Layout: Choose between vertical and horizontal radio button layouts to match document design needs. Secure Mobile Number Verification: Customers can now verify their mobile number using a one-time password (OTP) sent to their phone. General performance improvements.
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FAQ
How does SignBulb work?
SignBulb allows you to securely sign documents directly from your mobile device. It digitizes the signing process, removing the need for physical paperwork, printing, scanning, and mailing.
Is SignBulb free to use?
Yes, SignBulb is available for free. There are no costs associated with downloading or using its core document signing functionalities.
What devices are compatible with SignBulb?
SignBulb is compatible with iPhones, iPads, and iPods, making it accessible on a range of Apple mobile devices.
What is the age rating for SignBulb?
SignBulb has an age rating of 4+, indicating it is suitable for users of all ages.
How often is SignBulb updated?
The latest version of SignBulb is 2.0.17, and it was last updated on February 24, 2026. This suggests a commitment to regular updates and improvements.
What do users like about SignBulb?
Based on its 5.0-star rating from one review, users likely appreciate its ease of use and effectiveness in simplifying the document signing process.
Does SignBulb have ads?
No, SignBulb does not contain advertisements. Users can expect an ad-free experience while signing their documents.
