Viola Tuner Professional vs metrOnly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Viola Tuner Professional
This application provides precise and easy viola tuning with instant loading and high responsiveness. It features an intuitive interface with visual indicators and offers advanced settings and a tuning fork as in-app purchases. Suitable for musicians of all skill levels.
- Precise frequency display in Hz
- Multiple calibration options for A string
- Instant loading and fast tuning
- Intuitive UI with LED indicator
- Visual indicators for tuned strings
- Advanced settings and tuning fork (in-app purchase)
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Tune your viola instantly with precision and ease! Optimal for beginners, intermediate and advanced musicians! · The most accurate - displays the exact sound frequency in Hz. · Calibration for A: 392Hz, 415Hz, 432Hz, 440Hz, 441Hz, 442Hz, 443Hz, 444Hz, 466Hz. · Instant load and fastest tuning! - Optimized for latest devices. · Highest responsiveness and sensitivity. · Intuitive user interface with LED tuning indicator. · Visual indicators - tuned string lights up. · Universal app - works with iPhone, iPad and iPod touch. · Advanced settings (A4 calibration, Mic sensitivity, Sound notifications) and Tuning fork! (as in-app purchases) What our users say: "Does what it promises - Very useful app." "This app makes tuning so easy!" "By far the greatest and most accurate viola tuning app. Play the string, read its chart and you know whether you're in tune." "Amazing! Outstanding, well spent money! "All violists should have this app!" "It's very useful for me! Thank you!" "Excellent app" "Very convenient software. Suitable for any skill!" --- Please make sure to allow microphone access to this app when prompted. Check it under Settings>Privacy>Microphone. Thank you. --- Got ideas? Questions? Please send us your feedback through our site or to feedback@daikyoujulabs.com
metrOnly
This metronome app provides perfectly timed clicks without distracting features like accents or blinking lights. It offers tempo adjustments from 10-500 bpm and includes accessibility options for ease of use. Designed for focused practice, it aims to be a simple and effective tool for musicians.
- Perfectly timed clicks
- No distracting features
- Tempo range 10-500 bpm
- Intuitive tempo adjustment
- Accessibility options
- Customization features
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A metronome for musicians who hear better when the screen is quiet. metrOnly gives you precise time without accents, flashing lights, time signatures, or menus competing for your attention. Drag anywhere to change tempo from 10 to 500 BPM. Feel each number click into place. Tap the tempo to enter an exact value. Press one button to start. Choose from 19 carefully prepared click sounds, including woodblocks, sticks, rims, hats, snaps, and percussion. Set an optional practice timer, keep the click running in the background, and focus on the music. No clutter. Just time. New users need an auto-renewing subscription after onboarding. Weekly, monthly, and annual plans are available. Eligible customers can try the annual plan free for 7 days. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel your subscription in Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.sprinworld.com/privacy
Screenshots
Verdict
The clearest difference is price: metrOnly at Free against Viola Tuner Professional's $9.99. metrOnly also leads on in-app purchases (none vs 2). Viola Tuner Professional's advantage is update cadence (every 4 months vs every 20 months) and iOS requirement (15.6 vs 18.0). On rating, ratings volume, ads and monetization model 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
metrOnly is free to download; Viola Tuner Professional costs $9.99 up front. Viola Tuner Professional sells 2 one-off in-app purchases. metrOnly asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 3.9 for Viola Tuner Professional against 4.0 for metrOnly. Both are backed by a comparable volume of ratings — 9 and 4 respectively.
Viola Tuner Professional ships an update every 4 months, metrOnly every 20 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Viola Tuner Professional | metrOnly |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.9 (9 ratings) | 4.0 (4 ratings) — better |
| Positive reviews | 22.2% of reviews | — |
| Number of ratings | 9 — better | 4 |
| Update frequency | Every 4 months — better | Every 20 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 7 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Pedro Daniel Macalupu Cumpen | Austin Danson |
Customer experience
Viola Tuner Professional
metrOnly
In-app purchases
Viola Tuner Professional
- SettingsFree
- Tuning ForkFree
metrOnly
No in-app purchases
Questions
Is Viola Tuner Professional free?
Is metrOnly free?
Which has better reviews, Viola Tuner Professional or metrOnly?
Do Viola Tuner Professional or metrOnly have ads?
Which is updated more often, Viola Tuner Professional or metrOnly?
Other comparisons
