# RK Performance vs B>IAM

RK Performance and B>IAM 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. RK Performance sells 1 in-app purchase, starting at $399.99 per month and B>IAM sells 1 in-app purchase, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

RK Performance ships an update monthly, B>IAM every 5 weeks. The most recent releases landed on September 20, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | RK Performance | B>IAM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 51 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Robin Good LLC](https://appshunter.io/developer/1683914246) | [P.T.321 Ltd](https://appshunter.io/developer/1761587267) |

## What reviewers say

### RK Performance

[App page](https://appshunter.io/ios/app/rk-performance/id6448198421)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $399.99 | per month |


### B>IAM

[App page](https://appshunter.io/ios/app/biam/id6615083317)

This app offers comprehensive fitness and nutrition tracking to help you achieve your health goals. It allows you to log workouts, monitor body measurements, and track daily meals with personalized plans and targets. Access all your personal data to visualize your progress and stay motivated.

**Highlights:** Workout progression tracking, Nutrition logging and meal plans, Body measurement tracking, Progress picture visualization, Wearable fitness tracker synchronization, Personalized nutrition targets

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Program | $29.99 | per month |


## Frequently asked questions

### Is RK Performance free?

RK Performance is free to download, with in-app purchases available.

### Is B>IAM free?

B>IAM is free to download, with in-app purchases available.

### Do RK Performance or B>IAM have ads?

Neither RK Performance nor B>IAM shows ads.

### Which is updated more often, RK Performance or B>IAM?

RK Performance ships an update monthly, and B>IAM every 5 weeks. Most recently, RK Performance was updated on September 20, 2026 and B>IAM on June 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.*