OpenTuner vs Anystring Tuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenTuner
This app offers a professional and ad-free tuning experience for various instruments. It features automatic string tuning, support for multiple instruments, and the ability to create custom tunings. A built-in metronome is also included for practice.
- Automatic string-by-string tuning
- Support for Bass, Banjo, Ukulele
- Live note detection (Open mode)
- Create and save custom tunings
- Built-in metronome
- No ads or tracking
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OpenTuner is a lightweight, sleek, and professional guitar tuner built for players who just want to tune and play. I made this app after getting frustrated with tuner apps packed with ads and subscriptions. Why you'll love OpenTuner: - Instrument mode for automatic string-by-string tuning - Support for Bass, Banjo, and Ukulele - Open mode for live note detection - Multiple built-in tunings - Create and save your own custom tunings - Built in metronome - No ads. - No account required. - No tracking. Just open the app, tune, and play.
Anystring Tuner
This free application provides a highly customizable tuning experience for guitar and bass players. It allows users to set any note on any string, offering flexibility beyond standard presets. The app works offline and analyzes audio on-device for privacy.
- Editable per-string tunings
- Live pitch detection
- Customizable tunings
- Built-in presets
- Reference tones
- Offline functionality
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Anystring is a free tuner for guitar and bass with fully editable per-string tunings. Most free tuners lock you into fixed presets. Anystring lets you set any note on any string — Drop D, Drop C, 7-string, 4-string bass, or your own custom setup. FEATURES • Live pitch detection — start tuning and play a string • Strings mode — auto or manual target per string • Chromatic mode — nearest note with live cents • Built-in presets — Standard, Drop D, Half-step down, Drop C, bass standards, and more • Custom tunings — edit any string, name it, save under My tunings • Reference tones — tap a string or pick a note to hear the target • Offline — works without an internet connection PRIVACY Microphone audio is analysed on your device only while you are tuning. Nothing is recorded or uploaded. Your custom tunings stay on the device.
Screenshots
Verdict
The clearest difference is in-app purchases: Anystring Tuner at none against OpenTuner's 3. Anystring Tuner also leads on iOS requirement (15.0 vs 18.5). OpenTuner's advantage is ratings volume (14 vs 1). On price, rating, update cadence and ads 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. OpenTuner sells 3 one-off in-app purchases. Anystring Tuner asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for OpenTuner against 5.0 for Anystring Tuner. That said, the two scores are not equally well evidenced: OpenTuner has 14 ratings behind it against 1, so its average is the more settled of the two.
OpenTuner ships an update weekly, Anystring Tuner every 3 days. Both last shipped on October 24, 2026.
| Parameter | OpenTuner | Anystring Tuner |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (14 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | 1 |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Kalili | Kirill Plokhoi |
Customer experience
OpenTuner
Anystring Tuner
In-app purchases
OpenTuner
- Quick Thanks$0.99
- Support OpenTuner$3.99
- Keep It Going$9.99
Anystring Tuner
No in-app purchases
