# Groove Number vs EchoSketch

The clearest difference is price: Groove Number at $1.99 against EchoSketch's $7.99. On rating, ratings volume, update cadence and ads there is nothing between them.

Groove Number costs $1.99 and EchoSketch $7.99 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 Groove Number against 5.0 for EchoSketch. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Groove Number ships an update every 3 days, EchoSketch every 2 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Groove Number | EchoSketch |
| --- | --- | --- |
| Price | **$1.99** | $7.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/groove-number/id6786836303/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/echosketch-performance-delay/id6794466741/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 3 MB | 5 MB |
| Requires iOS | 17.0 | 17 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Langberg](https://appshunter.io/developer/6778935245) | [Avi Bortnick](https://appshunter.io/developer/421929037) |

## What reviewers say

### Groove Number

[App page](https://appshunter.io/ios/app/groove-number/id6786836303)

Analyze the rhythmic feel of your music with detailed swing percentage, BPM, and key analysis. Visualize your groove through various interactive displays and export it as MIDI for use in your DAW. All processing happens on-device for privacy.

**Highlights:** Swing % analysis, BPM estimation, Key detection, Multiple analysis views (meter, swing grid, spectrogram, chromagram), Audio file and live mic input, Groove to MIDI export

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

**In-app purchases:** none


### EchoSketch

[App page](https://appshunter.io/ios/app/echosketch-performance-delay/id6794466741)

Shape delay and reverb effects in real-time with a playable X/Y performance surface. Explore four distinct delay types and multiple reverb options, with extensive parameter control for unique sound morphing. Works as a standalone app or an Audio Unit plugin.

**Highlights:** X/Y performance surface for real-time sound shaping, Four distinct delay types: digital, analog, reverse, ping-pong, Spring, plate, and hall convolution reverb, Modulation and tone control for echoes, HOLD, LIFT, FREEZE, and MOTION performance gestures, Standalone app and AUv3 plugin compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Groove Number free?

Groove Number costs $1.99, with no in-app purchases.

### Is EchoSketch free?

EchoSketch costs $7.99, with no in-app purchases.

### Which has better reviews, Groove Number or EchoSketch?

Groove Number and EchoSketch are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Groove Number or EchoSketch have ads?

Neither Groove Number nor EchoSketch shows ads.

### Which is updated more often, Groove Number or EchoSketch?

Groove Number ships an update every 3 days, and EchoSketch every 2 days. Most recently, Groove Number was updated on October 6, 2026 and EchoSketch on October 14, 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.*