# OF Performance vs Kalybr

OF Performance and Kalybr 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. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | OF Performance | Kalybr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/kalybr/id6757463392/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 150 MB | 66 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Abdullah Emara](https://appshunter.io/developer/1838179107) | [Mohamed Zakaria](https://appshunter.io/developer/1867130545) |

## What reviewers say

### OF Performance

[App page](https://appshunter.io/ios/app/of-performance/id6756712476)

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

**In-app purchases:** none


### Kalybr

[App page](https://appshunter.io/ios/app/kalybr/id6757463392)

This app connects you with your coach to deliver personalized training programs. It provides clear exercise instructions, workout tracking, and a structured weekly plan to help you achieve your fitness goals with focus and consistency.

**Highlights:** Personalized training programs, Clear exercise instructions, Workout tracking, Weekly training structure, Coach-client connection

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

**In-app purchases:** none


## Frequently asked questions

### Is OF Performance free?

OF Performance is free to download, with no in-app purchases.

### Is Kalybr free?

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

### Do OF Performance or Kalybr have ads?

Neither OF Performance nor Kalybr shows ads.

### Which is updated more often, OF Performance or Kalybr?

OF Performance ships an update every 3 weeks, and Kalybr every 3 weeks. Most recently, OF Performance was updated on November 5, 2026 and Kalybr on November 5, 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.*