Viola Remote vs Mobile OTP Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Viola Remote
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Remote control application for Viola Audio Laboratories, Crescendo, Sonata and Chorale products.
Mobile OTP Authenticator
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.
- 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
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Scan the QR code issued by the two-factor authentication and automatically add the account you want to protect or select manual entry to manually set up the account. The account is stored in data security in the iOS key holder. The application supports all services that provide two-factor authentication using HOTP and TOTP algorithms. For example, Google, Facebook, Dropbox, Amazon, GitHub, Synology…. etc.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Viola Remote | Mobile OTP Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.5 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Viola Audio Laboratories | Albert Parti |
In-app purchases
Viola Remote
No in-app purchases
Mobile OTP Authenticator
No in-app purchases
Questions
Is Viola Remote free?
Is Mobile OTP Authenticator free?
Do Viola Remote or Mobile OTP Authenticator have ads?
Which is updated more often, Viola Remote or Mobile OTP Authenticator?
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