Best 6 E-Signature Apps in 2026: Compare Features

Introduction

Docusign is a strong all-around e-signature app for people who need to sign and send everyday documents from an iPhone. This roundup compares six mobile options, including their platforms, signing and sending tools, and key differences. Features and availability can vary by app and device, so check the current listing before installing.

Quick comparison

All six listings describe document-signing features. Docusign, both SignNow apps, Adobe Acrobat Sign, and PandaDoc also let you send documents for signature, and several offer progress tracking. Other differences include reusable templates, offline signing, cloud-file access, and document creation. *Signature-App’s listing claims unlimited free signings. Check its current terms to confirm.

1. Docusign - Upload & Sign Docs

Best for: iPhone users signing and sending a range of common documents.

Docusign - Upload & Sign Docs supports PDFs, Word files, and forms on iPhone. You can also send agreements to others for signature and monitor their progress. That’s handy when a document needs more than your own signature: sign it on your phone, then check whether everyone else has finished.

2. SignNow: e-Signature app

Best for: iPhone users who reuse documents or send agreements regularly.

SignNow: e-Signature app lets you sign and fill out documents, then send them for electronic signature. Reusable templates can save setup time if you send similar documents often, so you don’t have to start from scratch each time. Once a document is sent, status tracking helps you follow the process and see whether recipients have signed.

3. SignNow: Sign & Fill PDF Docs

Best for: Android users who need to fill and sign PDFs.

SignNow: Sign & Fill PDF Docs lets you fill out PDF forms, sign documents, and send them for signature. The listing also specifically mentions offline signing, with documents syncing after the device reconnects. This may be useful when you’re without internet access, though it’s worth checking how the current offline workflow works before you count on it. This is the Android listing, separate from SignNow’s iPhone app.

4. Adobe Acrobat Sign

Best for: iPhone users managing signature workflows with cloud-stored files.

Adobe Acrobat Sign lets you sign documents and send them to others for signature from its mobile app. It also works with files from cloud storage, which is useful if the document isn’t saved directly on your phone. Its main distinction here is workflow management: you can send and manage signature requests, not just add your own signature.

5. PandaDoc

Best for: iPhone users who want to create and manage documents as well as sign them.

PandaDoc’s mobile app supports creating, sending, tracking, and signing documents. That wider range of tools may suit people who need to handle more of a document’s workflow, rather than simply sign a file they already have. The search result confirms iOS availability, but no official App Store URL was provided for this roundup. Check the current store listing for details.

6. Signature-App

Best for: iPhone users looking for a straightforward way to sign documents on the go.

Signature-App is focused on signing documents without printing them first. Its listing claims unlimited free signings, but check the current app terms before relying on that. The stated focus is signing from anywhere; the details available here don’t confirm other workflow features, so check what the current version supports.

How we picked these apps

This roundup covers mobile apps whose descriptions say they support electronic signing. We compared the supplied details on signing, sending, tracking, templates, offline use, cloud-file access, and document creation. These apps don’t all offer the same tools.

The list includes iPhone options and an Android option, with separate SignNow listings for each platform. Features and availability are based on the provided app information, not hands-on testing. Before installing, check the current listing for supported devices, pricing, and any limits on sending or tracking documents.

Frequently asked questions

What should I look for in an e-signature app?

First, consider whether you only need to sign documents or also send them to others for signature. Then look for extras you’ll use, such as status tracking, reusable templates, offline signing, or cloud-file access. Make sure the app supports your device and the document formats you use.

Can I use these apps to send documents for signature?

The supplied descriptions say that Docusign, both SignNow listings, Adobe Acrobat Sign, and PandaDoc support sending documents. Sending a document is not the same as tracking whether recipients have signed it, and tracking may work differently across apps. Check current terms for any sending or tracking limits.

Which e-signature app works offline?

The Android SignNow listing specifically mentions offline signing and says documents sync when the device reconnects. The supplied descriptions for the other apps don’t confirm offline signing. If you need to sign a time-sensitive document without internet access, check how offline access works in the current app before relying on it.

The verdict

Docusign is a strong overall choice for most iPhone users. It supports PDFs, Word files, and forms, and lets you send and monitor agreements. Choose SignNow if you need reusable templates on iOS or offline signing on Android. Adobe Acrobat Sign is another option for managing signature workflows with cloud-stored files. Check current platform availability and terms before choosing.