# Ontrack vs ACL Rebuild

The clearest difference is update cadence: Ontrack at every 5 days against ACL Rebuild's fortnightly. Ontrack also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Ontrack sells 1 one-off in-app purchase and ACL Rebuild sells 3 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Ontrack ships an update every 5 days, ACL Rebuild fortnightly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Ontrack | ACL Rebuild |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 144 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Justin Tilley](https://appshunter.io/developer/1788155464) | [VisionFit](https://appshunter.io/developer/1810414588) |

## What reviewers say

### Ontrack

[App page](https://appshunter.io/ios/app/ontrack-workout-timer/id6740049722)

This app helps you track your workout sets and rest periods accurately. It's designed to keep you focused and consistent during any type of training, from weightlifting to HIIT.

**Highlights:** Apple Watch set tracking, Customizable rest timers, Preset workout routines, Visual progress tracking, Distraction-free design, Supports all training styles

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ontrack Pro | $0.99 | one-time |


### ACL Rebuild

[App page](https://appshunter.io/ios/app/acl-rebuild-strength-training/id6745011928)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $19.99 | per month |
| 6 Months | $89.99 | per 6 months |
| 12 Months | $99.99 | per year |


## Frequently asked questions

### Is Ontrack free?

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

### Is ACL Rebuild free?

ACL Rebuild is free to download, with in-app purchases available.

### Do Ontrack or ACL Rebuild have ads?

Neither Ontrack nor ACL Rebuild shows ads.

### Which is updated more often, Ontrack or ACL Rebuild?

Ontrack ships an update every 5 days, and ACL Rebuild fortnightly. Most recently, Ontrack was updated on November 4, 2026 and ACL Rebuild on October 30, 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.*