# Metronom 137 vs KeyBridge for DJs

The clearest difference is in-app purchases: Metronom 137 at none against KeyBridge for DJs's 1. Metronom 137 also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (18.6 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. KeyBridge for DJs sells 1 one-off in-app purchase. Metronom 137 asks for nothing beyond the download.

Metronom 137 ships an update every 2 weeks, KeyBridge for DJs every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Metronom 137 | KeyBridge for DJs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keybridge-for-djs/id6763512227/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Paid |
| Size | 6 MB | 5 MB |
| Requires iOS | **18.6** | 26.2 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thibault Ducray](https://appshunter.io/developer/954994222) | [Tomocreate, Inc.](https://appshunter.io/developer/1895224165) |

## What reviewers say

### Metronom 137

[App page](https://appshunter.io/ios/app/metronom-137/id6499492237)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases:** none


### KeyBridge for DJs

[App page](https://appshunter.io/ios/app/keybridge-for-djs/id6763512227)

This tool helps DJs create smoother transitions by suggesting compatible musical keys for their next track. It offers three distinct transition types: energy boost, mood switch, and calm down, all accessible with a single tap. Designed for live performance, it works offline and features a minimalist interface.

**Highlights:** Suggests compatible musical keys, Three transition types: energy boost, maj/min, calm down, Works 100% offline, Zero learning curve for mid-set use, Full 24-key wheel, Dark interface for booth visibility, Haptic feedback

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeyBridge Pro | $2.99 | one-time |


## Frequently asked questions

### Is Metronom 137 free?

Metronom 137 is free to download, with no in-app purchases.

### Is KeyBridge for DJs free?

KeyBridge for DJs is free to download, with in-app purchases available.

### Do Metronom 137 or KeyBridge for DJs have ads?

Neither Metronom 137 nor KeyBridge for DJs shows ads.

### Which is updated more often, Metronom 137 or KeyBridge for DJs?

Metronom 137 ships an update every 2 weeks, and KeyBridge for DJs every 2 months. Most recently, Metronom 137 was updated on October 24, 2026 and KeyBridge for DJs 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.*