# Authenticator App vs Authenticator 2FA by KeepSolid

The clearest difference is rating: Authenticator App at 4.8 against Authenticator 2FA by KeepSolid's 3.9. Authenticator App also leads on update cadence (every 10 days vs monthly). Authenticator 2FA by KeepSolid's advantage is in-app purchases (none vs 4) and iOS requirement (14.0 vs 16.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Authenticator App sells 3 in-app purchases, starting at $1.99 per month. Authenticator 2FA by KeepSolid asks for nothing beyond the download.

Authenticator App holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 32 and 11 respectively. Written reviews complicate that: 72% of Authenticator App's written reviews are positive against 75% of Authenticator 2FA by KeepSolid's, so the app with the better star average is not the one people write more warmly about.

Authenticator App ships an update every 10 days, Authenticator 2FA by KeepSolid monthly. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Authenticator App | Authenticator 2FA by KeepSolid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (32 ratings)](https://appshunter.io/ios/app/authenticator-app-sentinel/id1189922806/reviews)** | [3.9 (11 ratings)](https://appshunter.io/ios/app/authenticator-2fa-by-keepsolid/id1660779042/reviews) |
| Number of ratings | **32** | 11 |
| Positive reviews | 72.4% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 50 MB | 45 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad, Mac, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Tommaso Carpi](https://appshunter.io/developer/714996025) | [KeepSolid Inc.](https://appshunter.io/developer/674978021) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-sentinel/id1189922806)

Secure your online accounts with this app that manages all your two-factor authentication (2FA) codes in one place. It offers seamless syncing across devices, organized folders, and encrypted backups for peace of mind. Personalize your experience with custom icons and themes for easy account recognition.

**Highlights:** Manage all 2FA codes in one app, Seamless sync across Apple devices, Encrypted backups for code protection, Organize accounts with folders, Custom icons and themes, iOS & macOS widgets for quick access

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $9.99 | per year |
| Lifetime Access | $39.99 | one-time |

**What reviewers like**

- 👍 Easy to use and set up
- 🚀 Seamless syncing across devices (iOS, macOS)
- 🔒 Secure and dependable 2FA solution
- 💡 Responsive and friendly developer
- 💰 One-time purchase/lifetime option appreciated

**What reviewers complain about**

- 🐛 Widgets not working consistently (Mac/iPhone)
- 💰 Paid app, no free tier for some features
- 🐛 Some users experienced issues with syncing
- 🐛 Codes not working for specific services (e.g., Discord, Amazon)
- 🐛 App stuck on loading tokens for some users

**Reported bugs**

- Widgets not working on Mac Desktop and iPhone
- App stuck on loading tokens
- Syncing issues between devices
- Codes not working for specific services (Discord, Amazon)
- Unexpected charges/multiple purchases

**Requested features**

- Ability to reorder/hide folders
- Sort accounts by email address or service
- Show duplicates
- Show date service added
- Backup options (more explicit)


### Authenticator 2FA by KeepSolid

[App page](https://appshunter.io/ios/app/authenticator-2fa-by-keepsolid/id1660779042)

This app generates time-based one-time passwords to add an extra layer of security for your online accounts. It supports multi-factor authentication for services like Facebook, Google, and Amazon, protecting your data from unauthorized access. The app offers multi-device support and a user-friendly interface.

**Highlights:** Two-factor authentication (TFA/2FA), Time-based one-time passwords (TOTP), Multi-device support, Secure code generation, User-friendly interface, Account aggregation

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

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator App free?

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

### Is Authenticator 2FA by KeepSolid free?

Authenticator 2FA by KeepSolid is free to download, with no in-app purchases.

### Which has better reviews, Authenticator App or Authenticator 2FA by KeepSolid?

Authenticator App is rated higher. Authenticator App averages 4.8 out of 5 from 32 ratings, while Authenticator 2FA by KeepSolid averages 3.9 from 11 ratings.

### Do Authenticator App or Authenticator 2FA by KeepSolid have ads?

Neither Authenticator App nor Authenticator 2FA by KeepSolid shows ads.

### Which is updated more often, Authenticator App or Authenticator 2FA by KeepSolid?

Authenticator App ships an update every 10 days, and Authenticator 2FA by KeepSolid monthly. Most recently, Authenticator App was updated on October 3, 2026 and Authenticator 2FA by KeepSolid on September 29, 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.*