# Ground CTRL vs TKD Study

The clearest difference is ads: Ground CTRL at none against TKD Study's shown. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Ground CTRL sells 4 in-app purchases, starting at $9.99 per month and TKD Study sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Ground CTRL against 5.0 for TKD Study. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Ground CTRL ships an update weekly, TKD Study every 5 days. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Ground CTRL | TKD Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ground-ctrl-bjj/id6763345915/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/tkd-study-itf-taekwondo/id6774597426/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 52 MB | 36 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michael DerGarabedian](https://appshunter.io/developer/1895274656) | [Liam Tonge Nolan](https://appshunter.io/developer/6774597428) |

## What reviewers say

### Ground CTRL

[App page](https://appshunter.io/ios/app/ground-ctrl-bjj/id6763345915)

Upload your Brazilian Jiu-Jitsu rolls for AI-powered analysis. Get detailed feedback, personalized drills, and track your progress towards your next belt. Improve your skills between classes with precision coaching tailored to your performance.

**Highlights:** AI Roll Analysis, 7-section coaching breakdown, Personalized drills, Belt-level curriculum, Progress tracking, Strength & conditioning programming

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CTRL Pro Monthly | $9.99 | per month |
| CTRL Pro Annual - Special | $49.99 | per year |
| CTRL Pro Annual | $69.99 | per year |
| 5 Extra Analyses | $2.99 | one-time |


### TKD Study

[App page](https://appshunter.io/ios/app/tkd-study-itf-taekwondo/id6774597426)

Master ITF Taekwondo with structured pattern training, theory study, and quizzes. Prepare for belt gradings, improve technique, and deepen your understanding of the art. Learn patterns step-by-step and track your progress through levels.

**Highlights:** Structured pattern training, Theory study and quizzes, Belt syllabus guidance, Korean terminology practice, Progress tracking, Grading preparation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TKD Study – Unlimited Multiplayer | $4.99 | per month |
| Allow one change of your username | $1.99 | one-time |


## Frequently asked questions

### Is Ground CTRL free?

Ground CTRL is free to download, with in-app purchases available.

### Is TKD Study free?

TKD Study is free to download, with in-app purchases available.

### Which has better reviews, Ground CTRL or TKD Study?

Ground CTRL and TKD Study are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Ground CTRL or TKD Study have ads?

TKD Study shows ads; Ground CTRL does not.

### Which is updated more often, Ground CTRL or TKD Study?

Ground CTRL ships an update weekly, and TKD Study every 5 days. Most recently, Ground CTRL was updated on October 9, 2026 and TKD Study 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.*