# IMPULSation vs ChordGen

The clearest difference is price: ChordGen at Free against IMPULSation's $9.99. ChordGen also leads on rating (5.0 vs 3.7). IMPULSation's advantage is update cadence (every 4 months vs every 12 months) and ratings volume (14 vs 1). On ads, in-app purchases and device support there is nothing between them.

ChordGen is free to download; IMPULSation costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ChordGen holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: IMPULSation has 14 ratings behind it against 1, so its average is the more settled of the two.

IMPULSation ships an update every 4 months, ChordGen every 12 months. The most recent releases landed on September 26, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | IMPULSation | ChordGen |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (14 ratings)](https://appshunter.io/ios/app/impulsation/id1469723900/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chordgen/id1552497598/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#176** | — |
| Size | 139 MB | 24 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MIDIculous LLC](https://appshunter.io/developer/579058990) | [Gustavo Sore](https://appshunter.io/developer/929233592) |

## What reviewers say

### IMPULSation

[App page](https://appshunter.io/ios/app/impulsation/id1469723900)

**Currently charting:** #176 Top Paid · Music (US App Store)

This app is a powerful convolution reverb that lets you load custom impulse responses for endless sound possibilities. Recreate classic amp tones, spaces, and delays with optimized signal processing. It offers a user-friendly interface with essential controls for precise sound shaping.

**Highlights:** Load custom impulse responses (.wav, .aif), AUv3 and AAX plugin support, 88 factory presets, MIDI Learn and Program Change, Pre-Delay, Wet/Dry, Decay controls, Stereo Widener, iCloud Backup and Sharing

**Features:** Vision Pro support

**In-app purchases:** none


### ChordGen

[App page](https://appshunter.io/ios/app/chordgen/id1552497598)

Generate chords for any stringed instrument with custom tunings. This universal chord dictionary is ideal for beginners, songwriters, and musicians seeking new sounds. Easily search for specific chords and explore variations.

**Highlights:** Generate any chord, Select any instrument, Choose any tuning, Generate chords with bass notes, Text search system, Universal chord dictionary

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IMPULSation free?

IMPULSation costs $9.99, with no in-app purchases.

### Is ChordGen free?

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

### Which has better reviews, IMPULSation or ChordGen?

ChordGen is rated higher. IMPULSation averages 3.7 out of 5 from 14 ratings, while ChordGen averages 5.0 from 1 ratings.

### Do IMPULSation or ChordGen have ads?

Neither IMPULSation nor ChordGen shows ads.

### Which is updated more often, IMPULSation or ChordGen?

IMPULSation ships an update every 4 months, and ChordGen every 12 months. Most recently, IMPULSation was updated on September 26, 2026 and ChordGen on October 6, 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.*