# Rainbow Authenticator vs 2FA Authenticator

The clearest difference is update cadence: 2FA Authenticator at every 6 days against Rainbow Authenticator's monthly. Rainbow Authenticator's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Rainbow Authenticator sells 1 in-app purchase, starting at $4.99 per year and 2FA Authenticator sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Rainbow Authenticator ships an update monthly, 2FA Authenticator every 6 days. The most recent releases landed on September 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Rainbow Authenticator | 2FA Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/2fa-authenticator-mfaotpauth/id6503233227/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 34.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 32 MB | 32 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [彦欣 吴](https://appshunter.io/developer/1628212399) | [朝虹 陈](https://appshunter.io/developer/1678918725) |

## What reviewers say

### Rainbow Authenticator

[App page](https://appshunter.io/ios/app/rainbow-authenticator/id6444103637)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly(30-day trial) | $4.99 | per year |


### 2FA Authenticator

[App page](https://appshunter.io/ios/app/2fa-authenticator-mfaotpauth/id6503233227)

This app provides robust digital security for your online accounts using end-to-end encryption. It simplifies adding accounts, securely backs up and syncs your data, and offers offline password generation. Manage all your passwords and generate strong ones with ease.

**Highlights:** Effortless account addition via QR code, Secure data backup and cross-device sync, Offline one-time password generation, Password manager for central organization, Customizable strong password generator, Face ID and Touch ID secure access

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Weekly | $4.99 | per 7 days |
| Authenticator - Weekly | $4.99 | per 7 days |
| Authenticator Yearly | $39.99 | per year |
| Authenticator Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Rainbow Authenticator free?

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

### Is 2FA Authenticator free?

2FA Authenticator is free to download, with in-app purchases available.

### Do Rainbow Authenticator or 2FA Authenticator have ads?

Neither Rainbow Authenticator nor 2FA Authenticator shows ads.

### Which is updated more often, Rainbow Authenticator or 2FA Authenticator?

Rainbow Authenticator ships an update monthly, and 2FA Authenticator every 6 days. Most recently, Rainbow Authenticator was updated on September 19, 2026 and 2FA Authenticator on October 1, 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.*