# imOTP vs Mobile OTP Authenticator

The clearest difference is iOS requirement: imOTP at 9.0 against Mobile OTP Authenticator's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 8 months. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | imOTP | Mobile OTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/mobile-otp-authenticator/id1451459963/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | Every 8 months |
| Monetization | — | Free |
| Size | 20 MB | 2 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johann Marinits](https://appshunter.io/developer/1135035394) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### imOTP

[App page](https://appshunter.io/ios/app/imotp/id1135035395)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mobile OTP Authenticator

[App page](https://appshunter.io/ios/app/mobile-otp-authenticator/id1451459963)

Securely manage your two-factor authentication codes. Easily add accounts by scanning QR codes or manual entry. Protect your online accounts with industry-standard HOTP and TOTP algorithms.

**Highlights:** QR code scanning for account setup, Manual account entry, Secure data storage in iOS Keychain, Supports HOTP and TOTP algorithms, Works with popular services like Google, Facebook, Amazon

**In-app purchases:** none


## Frequently asked questions

### Is imOTP free?

imOTP is free to download, with no in-app purchases.

### Is Mobile OTP Authenticator free?

Mobile OTP Authenticator is free to download, with no in-app purchases.

### Do imOTP or Mobile OTP Authenticator have ads?

Neither imOTP nor Mobile OTP Authenticator shows ads.

### Which is updated more often, imOTP or Mobile OTP Authenticator?

imOTP ships an update every 8 months, and Mobile OTP Authenticator every 8 months. Most recently, imOTP was updated on October 10, 2026 and Mobile OTP Authenticator on October 17, 2026.

---

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