A440 Tuner vs Endless A
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
Read full descriptionHide full description
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.
Endless A
Easily generate a consistent A-440 pitch for tuning instruments. Select from various instrument sounds to play the reference tone endlessly until you tap to stop. Ideal for musicians needing a reliable tuning reference.
- Endless A-440 pitch generation
- Multiple instrument sound options
- Simple tap-to-play interface
- Reference tone for tuning
- Piano, violin, french horn, sine wave sounds
Read full descriptionHide full description
A concert A, whenever you need one. Endless A-440 plays a sustained 440 Hz reference tone for tuning instruments. Choose piano, violin, French horn, or a pure sine wave. Tap an instrument to start or stop, or tap another to switch sounds. Hold an instrument to play until you release it. • Four original bundled reference sounds • Animated instruments during playback • Light and dark appearances • Modern and classic designs • Native adaptive controls on iPhone Duo • Works offline, with no account, ads, or microphone access This is a reference-tone player. It does not listen to your instrument or measure its pitch.
Screenshots
Verdict
The clearest difference is rating: Endless A at 3.5 against A440 Tuner's 2.9. Endless A also leads on update cadence (every 2 weeks vs every 39 months). A440 Tuner's advantage is review sentiment (67% vs 50%) and iOS requirement (12.0 vs 17.0). On price, ratings volume, ads and in-app purchases 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.
Endless A holds the better App Store score, 3.5 against 2.9. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews complicate that: 67% of A440 Tuner's written reviews are positive against 50% of Endless A'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, Endless A every 2 weeks. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.
| Parameter | A440 Tuner | Endless A |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (8 ratings) | 3.5 (4 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 8 — better | 4 |
| Update frequency | Every 39 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 16 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Weird Kid Software LLC | Nathan Fennel |
Customer experience
A440 Tuner
Endless A
In-app purchases
A440 Tuner
No in-app purchases
Endless A
No in-app purchases
