# REF vs Tuner · Baro

The clearest difference is iOS requirement: Tuner · Baro at 13.0 against REF's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | REF | Tuner · Baro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tuner-baro/id6775906542/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | — | Free |
| Size | 6 MB | 20 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amr Rashed](https://appshunter.io/developer/1864768976) | [Euiseok Kim](https://appshunter.io/developer/1879633122) |

## What reviewers say

### REF

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Tuner · Baro

[App page](https://appshunter.io/ios/app/tuner-baro/id6775906542)

This offline chromatic tuner analyzes your microphone's audio in real-time to display the exact note and frequency you're playing. It prioritizes user privacy by processing all audio analysis on-device without any internet connection, tracking, or data collection.

**Highlights:** Real-time pitch detection, Offline functionality, On-device audio analysis, Clear note name and frequency display, Visual tuning indicator, Adjustable concert-pitch reference, Screen stays awake during use

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is REF free?

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

### Is Tuner · Baro free?

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

### Do REF or Tuner · Baro have ads?

Neither REF nor Tuner · Baro shows ads.

### Which is updated more often, REF or Tuner · Baro?

REF ships an update every 3 days, and Tuner · Baro every 3 days. Most recently, REF was updated on October 5, 2026 and Tuner · Baro on October 25, 2026.

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