# Impulse vs ClefBoard

The clearest difference is update cadence: ClefBoard at every 3 days against Impulse's monthly. 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.

Impulse ships an update monthly, ClefBoard every 3 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Impulse | ClefBoard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (943 ratings)](https://appshunter.io/ios/app/impulse-pro-metronome-rhythm/id1444796949/reviews)** | — |
| Number of ratings | **943** | — |
| Positive reviews | 91.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Paid | — |
| Size | 6 MB | 43 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Coda Labs Incorporated](https://appshunter.io/developer/1139019669) | [Stanley Liu](https://appshunter.io/developer/6786058512) |

## What reviewers say

### Impulse

[App page](https://appshunter.io/ios/app/impulse-pro-metronome-rhythm/id1444796949)

This app provides a highly accurate and customizable metronome for musicians. It allows users to program complex beat patterns, including subdivisions and rests, with a clear visual interface to understand rhythmic structures. Ideal for serious musicians looking to refine their timing and explore intricate rhythms.

**Highlights:** Visual subdivision editor, Complex beat pattern programming, Up to 100 beats per measure, 20 subdivisions per beat, Tempo range 10-600 BPM, Sample-level accuracy

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Simplicity and features
- 👍 Good UI and polish
- 👍 Flexible and powerful
- 👍 Intuitive and easy to use
- 👍 Versatile and customizable

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔊 Sound issues
- 🤖 Lack of portrait mode
- 🔀 Overwriting presets without warning

**Reported bugs**

- Fourth beat type not changing sound properly
- Metronome stops working when switching apps
- No sound on some devices

**Requested features**

- Ability to create and name custom presets
- Different colors for downbeats
- Quick toggle for sound on/off
- Support for odd time signatures
- Ableton Link/MIDI sync


### ClefBoard

[App page](https://appshunter.io/ios/app/clefboard/id6786058510)

**In-app purchases:** none


## Frequently asked questions

### Is Impulse free?

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

### Is ClefBoard free?

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

### Do Impulse or ClefBoard have ads?

Neither Impulse nor ClefBoard shows ads.

### Which is updated more often, Impulse or ClefBoard?

Impulse ships an update monthly, and ClefBoard every 3 days. Most recently, Impulse was updated on October 29, 2026 and ClefBoard on October 28, 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.*