# JB Timing Trainer vs 4Comp

The clearest difference is price: 4Comp at $4.99 against JB Timing Trainer's $14.99. 4Comp also leads on update cadence (weekly vs every 5 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

JB Timing Trainer costs $14.99 and 4Comp $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for JB Timing Trainer against 5.0 for 4Comp. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

JB Timing Trainer ships an update every 5 months, 4Comp weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | JB Timing Trainer | 4Comp |
| --- | --- | --- |
| Price | $14.99 | **$4.99** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/jb-timing-trainer/id6444255923/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/4comp-auv3-compressor-plugin/id6805205834/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 36 MB | 3 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Son of a Bjork AB](https://appshunter.io/developer/1653377777) | [NATHAN THOMAS MATHIS](https://appshunter.io/developer/1870347850) |

## What reviewers say

### JB Timing Trainer

[App page](https://appshunter.io/ios/app/jb-timing-trainer/id6444255923)

Master your rhythm with this advanced metronome app. It offers versatile subdivisions, musical drones, and customizable beat patterns for precise musical practice. Includes video tutorials to help you utilize all features.

**Highlights:** Versatile subdivisions (1-21 per beat), Musical drones for practice enhancement, Customizable beats and complex patterns, Seamless subdivision switching, Silent beats for tempo retention, Save and access favorite beat patterns, In-app video tutorials

**Features:** macOS Compatibility

**In-app purchases:** none


### 4Comp

[App page](https://appshunter.io/ios/app/4comp-auv3-compressor-plugin/id6805205834)

This audio plugin offers four distinct analog-style compressor models (FET, VCA, Optical, Vari-Mu), each with its own sound and interface. It provides advanced features like stereo linking, sidechain filtering, and real-time transfer curve visualization.

**Highlights:** Four analog compressor models (FET, VCA, Optical, Vari-Mu), Unique DSP engine and interface for each model, Live transfer curve visualization, Stereo link and sidechain high-pass filter, Dry/wet mix and auto make-up gain, 17 presets included, 0-sample latency

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

**In-app purchases:** none


## Frequently asked questions

### Is JB Timing Trainer free?

JB Timing Trainer costs $14.99, with no in-app purchases.

### Is 4Comp free?

4Comp costs $4.99, with no in-app purchases.

### Which has better reviews, JB Timing Trainer or 4Comp?

JB Timing Trainer and 4Comp are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do JB Timing Trainer or 4Comp have ads?

Neither JB Timing Trainer nor 4Comp shows ads.

### Which is updated more often, JB Timing Trainer or 4Comp?

JB Timing Trainer ships an update every 5 months, and 4Comp weekly. Most recently, JB Timing Trainer was updated on October 24, 2026 and 4Comp on October 24, 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.*