# Fill and Sign vs Auth Authenticator

The clearest difference is rating: Auth Authenticator at 4.9 against Fill and Sign's 4.6. Auth Authenticator also leads on update cadence (every 5 weeks vs every 3 months) and device support (3 vs 1). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Fill and Sign sells 1 in-app purchase, starting at $6.99 per 7 days and Auth Authenticator sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Auth Authenticator holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 15 and 28 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Fill and Sign ships an update every 3 months, Auth Authenticator every 5 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fill and Sign | Auth Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (15 ratings)](https://appshunter.io/ios/app/fill-and-sign-pdf-documents/id6736828950/reviews) | **[4.9 (28 ratings)](https://appshunter.io/ios/app/auth-authenticator-2fa-and-mfa/id6742376474/reviews)** |
| Number of ratings | 15 | **28** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 105 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Janko Bilyk](https://appshunter.io/developer/1777242555) | [Enveloc, Inc](https://appshunter.io/developer/6785535852) |

## What reviewers say

### Fill and Sign

[App page](https://appshunter.io/ios/app/fill-and-sign-pdf-documents/id6736828950)

Streamline document signing with this app. Easily upload, sign, and manage documents from your device or cloud storage. Supports multiple signers and offers secure, compliant signing for professionals and individuals.

**Highlights:** Easy document upload from various sources, Add signatures with finger or stylus, Support for multiple signers, Secure and legally compliant signing, Customizable document templates, Track document signing progress, Offline signing capability

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scan Sign documents no limit | $6.99 | per 7 days |


### Auth Authenticator

[App page](https://appshunter.io/ios/app/auth-authenticator-2fa-and-mfa/id6742376474)

Secure your accounts with advanced two-factor authentication and biometric protection. This app provides instant access to OTP codes, syncs across devices, and allows for easy QR code generation. It offers robust security features with a sleek, intuitive interface.

**Highlights:** End-to-end encryption, Biometric lock (Face ID), Instant OTP code access, Cross-device sync (iPhone, iCloud, Watch), Home screen widgets, QR code generation

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |
| Monthly | $19.99 | per month |


## Frequently asked questions

### Is Fill and Sign free?

Fill and Sign is free to download, with in-app purchases available.

### Is Auth Authenticator free?

Auth Authenticator is free to download, with in-app purchases available.

### Which has better reviews, Fill and Sign or Auth Authenticator?

Auth Authenticator is rated higher. Fill and Sign averages 4.6 out of 5 from 15 ratings, while Auth Authenticator averages 4.9 from 28 ratings.

### Do Fill and Sign or Auth Authenticator have ads?

Neither Fill and Sign nor Auth Authenticator shows ads.

### Which is updated more often, Fill and Sign or Auth Authenticator?

Fill and Sign ships an update every 3 months, and Auth Authenticator every 5 weeks. Most recently, Fill and Sign was updated on October 25, 2026 and Auth Authenticator on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*