# Model D6 vs Groove Number

The clearest difference is price: Groove Number at $1.99 against Model D6's $19.99. Groove Number also leads on update cadence (every 3 days vs every 9 months). Model D6's advantage is ratings volume (5 vs 1) and iOS requirement (11.0 vs 17.0). On rating, ads, in-app purchases and monetization model there is nothing between them.

Model D6 costs $19.99 and Groove Number $1.99 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 Model D6 against 5.0 for Groove Number. That said, the two scores are not equally well evidenced: Model D6 has 5 ratings behind it against 1, so its average is the more settled of the two.

Model D6 ships an update every 9 months, Groove Number every 3 days. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Model D6 | Groove Number |
| --- | --- | --- |
| Price | $19.99 | **$1.99** |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/model-d6/id6443897794/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/groove-number/id6786836303/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 days** |
| Monetization | Paid | Paid |
| Size | 13 MB | 3 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Genuine Soundware](https://appshunter.io/developer/1560880481) | [Joshua Langberg](https://appshunter.io/developer/6778935245) |

## What reviewers say

### Model D6

[App page](https://appshunter.io/ios/app/model-d6/id6443897794)

This app is a physical modeling emulation of the classic Hohner Clavinet D6 keyboard. It recreates the iconic funky sounds used in 70s music and offers extensive sound shaping capabilities with built-in effects and amp simulations.

**Highlights:** Physical Modeling engine, Authentic D6 filter recreation, Adjustable pickup positions, Built-in Wah-Wah, Phaser, Delay, and Reverb effects, Amplifier simulator with 5 models, Responds to pitch bender and aftertouch

**Features:** Vision Pro support

**In-app purchases:** none


### 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 graphical displays and export it as MIDI for use in your DAW. All analysis is performed on-device for privacy.

**Highlights:** Swing % analysis, BPM estimation, Key detection, Multiple visualization modes, Audio file analysis, Live microphone analysis, Groove to MIDI export, Siri integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Model D6 free?

Model D6 costs $19.99, with no in-app purchases.

### Is Groove Number free?

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

### Which has better reviews, Model D6 or Groove Number?

Model D6 and Groove Number are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do Model D6 or Groove Number have ads?

Neither Model D6 nor Groove Number shows ads.

### Which is updated more often, Model D6 or Groove Number?

Model D6 ships an update every 9 months, and Groove Number every 3 days. Most recently, Model D6 was updated on November 11, 2026 and Groove Number on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*