Sign Documents is the household name in firma digital gratis, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
Compare top Firma Digital Gratis Apps (September 2026)
Easily sign and manage your documents with a built-in scanner. Digitize paper, add signatures and stamps, and share your finalized files. Supports various document types for a streamlined workflow.
This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.
Capture your handwritten signature from paper using your phone's camera. The app automatically cleans and refines it for a professional, transparent digital signature to use on PDFs and other documents. Sign contracts, invoices, and agreements quickly and securely.
What are the best firma digital gratis apps for iPhone?
Sign Documents - eSign PDF tops our firma digital gratis apps ranking as of September 2026, with a 4.8-star average from 152 App Store ratings, and it's free to download.
Are there free firma digital gratis apps for iPhone?
Yes — 20 of the top firma digital gratis apps we rank are free to download, including Sign Documents - eSign PDF and Acrobat Reader: PDF Editor.
Does Sign Documents - eSign PDF have ads or in-app purchases?
Sign Documents - eSign PDF has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
How many firma digital gratis apps are on the App Store?
We track 249+ firma digital gratis apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
What document formats can I sign with Sign Documents?
Sign Documents supports a wide range of formats, including PDF, DOC, and XLS, allowing you to sign virtually any document you receive.
How does the scanning feature work in Sign Documents?
The app includes a built-in scanner that digitizes paper documents, turning them into editable files that you can then sign and share.