# A440 Tuner vs REF

The clearest difference is update cadence: REF at every 3 days against A440 Tuner's every 39 months. A440 Tuner's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

A440 Tuner ships an update every 39 months, REF every 3 days. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | A440 Tuner | REF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (8 ratings)](https://appshunter.io/ios/app/a440-tuner/id304862860/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 16 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Weird Kid Software LLC](https://appshunter.io/developer/304862863) | [Amr Rashed](https://appshunter.io/developer/1864768976) |

## What reviewers say

### A440 Tuner

[App page](https://appshunter.io/ios/app/a440-tuner/id304862860)

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.

**Highlights:** Concert A (440Hz) reference pitch, Oboe sound options (real recording or synth), Ear training tool, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


### REF

[App page](https://appshunter.io/ios/app/ref-440-tuner/id6757130720)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A440 Tuner free?

A440 Tuner is free to download, with no in-app purchases.

### Is REF free?

REF is free to download, with no in-app purchases.

### Do A440 Tuner or REF have ads?

Neither A440 Tuner nor REF shows ads.

### Which is updated more often, A440 Tuner or REF?

A440 Tuner ships an update every 39 months, and REF every 3 days. Most recently, A440 Tuner was updated on October 14, 2026 and REF on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*