# Rainbow Authenticator vs Authenticator 2FA

The clearest difference is update cadence: Rainbow Authenticator at monthly against Authenticator 2FA's every 3 months. Rainbow Authenticator also leads on 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 Authenticator 2FA sells 3 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, Authenticator 2FA every 3 months. The most recent releases landed on September 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Rainbow Authenticator | Authenticator 2FA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 23.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | — | Freemium |
| Size | 32 MB | 10 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) | [泽雄 陈](https://appshunter.io/developer/1792614874) |

## 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 |


### Authenticator 2FA

[App page](https://appshunter.io/ios/app/authenticator-2fa-mfatotp/id6744550449)

Secure your online accounts with this all-in-one security tool. It offers two-factor authentication, a password manager with local encryption, and a strong password generator. Enjoy peace of mind with encrypted data storage and optional iCloud sync.

**Highlights:** Two-Factor Authentication (TOTP), Password Manager with local encryption, Strong Password Generator, Security Tips, Encrypted Data Storage, Optional iCloud Sync & Backup

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator - Weekly | $4.99 | per 7 days |
| Authenticator - Yearly | $29.99 | 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 Authenticator 2FA free?

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

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

Neither Rainbow Authenticator nor Authenticator 2FA shows ads.

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

Rainbow Authenticator ships an update monthly, and Authenticator 2FA every 3 months. Most recently, Rainbow Authenticator was updated on September 19, 2026 and Authenticator 2FA 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.*