# TC vs GRM studio

The clearest difference is price: GRM studio at Free against TC's $24.99. GRM studio also leads on update cadence (weekly vs every 5 weeks) and review sentiment (100% vs 88%). TC's advantage is rating (4.8 vs 4.0) and ratings volume (68 vs 1). On ads, in-app purchases and device support there is nothing between them.

GRM studio is free to download; TC costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TC holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: TC has 68 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 88% of TC's written reviews are positive against 100% of GRM studio's, so the app with the better star average is not the one people write more warmly about.

TC ships an update every 5 weeks, GRM studio weekly. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | TC | GRM studio |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | **[4.8 (68 ratings)](https://appshunter.io/ios/app/tc-11/id488577050/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/grm-studio/id1448936613/reviews) |
| Number of ratings | **68** | 1 |
| Positive reviews | 87.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Paid | **Free** |
| Size | 53 MB | 35 MB |
| Requires iOS | 16.0 | **9.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bit Shape](https://appshunter.io/developer/397853985) | [Institut National de l'Audiovisuel](https://appshunter.io/developer/480730772) |

## What reviewers say

### TC

[App page](https://appshunter.io/ios/app/tc-11/id488577050)

This app is a fully programmable multi-touch synthesizer for iPad. Create unique sounds using touch gestures, device motion, and a variety of on-board modules. Explore a vast sonic landscape with extensive customization options.

**Highlights:** 185 built-in presets, Unlimited user patches, Multi-touch and device motion control, 23 modular synthesis objects, Built-in recording and AudioCopy, Audiobus support

**In-app purchases:** none

**What reviewers like**

- 🎨 Innovative touch-screen interface design
- 🎵 Exceptional sound quality and synthesis engine
- 🎹 Unique iPad-optimized instrument approach
- 🎚️ Highly customizable and deep sound design capabilities
- 🎭 Expressive performance control with multitouch gestures

**What reviewers complain about**

- 🐛 Frequent crashes on opening and during use
- ⚠️ Stability issues with recent updates
- 🎹 Difficult learning curve for beginners
- 🔌 No MIDI support or DAW integration
- 🎼 Limited ability to play precise melodies

**Reported bugs**

- App crashes upon opening after recent updates
- Black screen crashes when launching
- Crashes when adding patches to folders
- Crashes within Audiobus after 13.1 update
- AudioCopy button crashes on iPad 3

**Requested features**

- MIDI support and DAW synchronization
- Ability to record and playback motion gestures
- Sample import and granular synthesis capabilities
- Microtonal tuning support (Scala files)
- Note hold function per surface


### GRM studio

[App page](https://appshunter.io/ios/app/grm-studio/id1448936613)

This music creation app offers advanced sound manipulation tools for musicians and sound designers. Explore and edit audio files through direct waveform manipulation and multiple playback processes.

**Highlights:** Real-time sound transformation simulation, Direct waveform exploration, Virtual editing and montage, Multiple playback processes, Granular synthesis

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

**In-app purchases:** none


## Frequently asked questions

### Is TC free?

TC costs $24.99, with no in-app purchases.

### Is GRM studio free?

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

### Which has better reviews, TC or GRM studio?

TC is rated higher. TC averages 4.8 out of 5 from 68 ratings, while GRM studio averages 4.0 from 1 ratings.

### Do TC or GRM studio have ads?

Neither TC nor GRM studio shows ads.

### Which is updated more often, TC or GRM studio?

TC ships an update every 5 weeks, and GRM studio weekly. Most recently, TC was updated on October 7, 2026 and GRM studio on October 2, 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.*