# BTX Coaching vs Built By Karl

BTX Coaching and Built By Karl are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. BTX Coaching sells 1 in-app purchase, starting at $299.99 per month and Built By Karl sells 1 in-app purchase, starting at $299.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BTX Coaching | Built By Karl |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 56 MB | 56 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Bruno de Paiva Alves Teixeira](https://appshunter.io/developer/1845329380) | [Karl Jardine](https://appshunter.io/developer/1874177894) |

## What reviewers say

### BTX Coaching

[App page](https://appshunter.io/ios/app/btx-coaching/id6753868230)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $299.99 | per month |


### Built By Karl

[App page](https://appshunter.io/ios/app/built-by-karl/id6758647480)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly 1-1 | $299.99 | per month |


## Frequently asked questions

### Is BTX Coaching free?

BTX Coaching is free to download, with in-app purchases available.

### Is Built By Karl free?

Built By Karl is free to download, with in-app purchases available.

### Do BTX Coaching or Built By Karl have ads?

Neither BTX Coaching nor Built By Karl shows ads.

### Which is updated more often, BTX Coaching or Built By Karl?

BTX Coaching ships an update every 3 months, and Built By Karl every 3 months. Most recently, BTX Coaching was updated on October 10, 2026 and Built By Karl on October 24, 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.*