# Viola Remote vs Mobile OTP Authenticator

The clearest difference is update cadence: Viola Remote at every 3 months against Mobile OTP Authenticator's every 8 months. Viola Remote also leads on iOS requirement (9.3 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Viola Remote ships an update every 3 months, Mobile OTP Authenticator every 8 months. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Viola Remote | 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 3 months** | Every 8 months |
| Monetization | — | Free |
| Size | 3 MB | 2 MB |
| Requires iOS | **9.3** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Viola Audio Laboratories](https://appshunter.io/developer/551056347) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### Viola Remote

[App page](https://appshunter.io/ios/app/viola-remote/id563608611)

**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 Viola Remote free?

Viola Remote 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 Viola Remote or Mobile OTP Authenticator have ads?

Neither Viola Remote nor Mobile OTP Authenticator shows ads.

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

Viola Remote ships an update every 3 months, and Mobile OTP Authenticator every 8 months. Most recently, Viola Remote was updated on October 14, 2026 and Mobile OTP Authenticator on October 17, 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.*