A440 Tuner vs onsA440
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A440 Tuner
This app provides a reference Concert A (440Hz) pitch for musicians who tune by ear. It offers a choice between a real oboe recording or a synthesizer oboe sound.
- Concert A (440Hz) reference pitch
- Oboe sound options (real recording or synth)
- Ear training tool
- Simple interface
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A440 Tuner is a simple app for musicians who prefer to tune by ear to a reference Concert A (440Hz). Choose between a recording of a real oboe or a synthesizer oboe. This app is not a meter or strobe or chromatic tuner - it simply produces the Concert A reference pitch. While this may seem limited from the viewpoint of one who usually tunes by meter, it fits the needs precisely for musicians who are trained to tune their instruments by ear from a reference pitch. The oboe was chosen for this app because in an orchestra setting it is typically the oboe that gives the reference pitch at the beginning of rehearsals and concerts.
onsA440
This simple tuning fork app generates a musical tone with a shake or tap. It stops the sound with another tap, making it a straightforward tool for musicians.
- Shake gesture activation
- Tap gesture activation
- Simple sound generation
- For musicians
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This is a very simple tuning fork application. It begins to sound it in the shake gesture or the tap. And, the sound stops if the tap is done. For all musicians.
Screenshots
Verdict
The clearest difference is rating: A440 Tuner at 2.9 against onsA440's 2.3. onsA440's advantage is update cadence (every 5 months vs every 39 months). On price, review sentiment, ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.
A440 Tuner holds the better App Store score, 2.9 against 2.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews complicate that: 67% of A440 Tuner's written reviews are positive against 73% of onsA440's, so the app with the better star average is not the one people write more warmly about.
A440 Tuner ships an update every 39 months, onsA440 every 5 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.
| Parameter | A440 Tuner | onsA440 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (8 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 66.7% of reviews | 73.3% of reviews — better |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 39 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 16 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Weird Kid Software LLC | Groov-in. |
Customer experience
A440 Tuner
onsA440
In-app purchases
A440 Tuner
No in-app purchases
onsA440
No in-app purchases
