# BuiltDiff vs Repstrack

The clearest difference is in-app purchases: BuiltDiff at none against Repstrack's 2. Repstrack's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Repstrack sells 2 in-app purchases, starting at $1.99 per month. BuiltDiff asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | BuiltDiff | Repstrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/builtdiff/id6478643263/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free | — |
| Size | 3 MB | 52 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timmy Nguyen](https://appshunter.io/developer/1679678398) | [Ravikiran Basavaraju](https://appshunter.io/developer/6799595791) |

## What reviewers say

### BuiltDiff

[App page](https://appshunter.io/ios/app/builtdiff/id6478643263)

Log your weightlifting sets and reps with a clean, distraction-free interface. Visualize your progress with charts and personalize the app's appearance. Enjoy offline functionality and a sign-up-free experience for efficient workouts.

**Highlights:** Log lifts, sets, and reps, Create custom workout routines, Offline functionality, Sign-up-free experience, Visualize progress with charts, Personalize app appearance

**Features:** macOS Compatibility

**In-app purchases:** none


### Repstrack

[App page](https://appshunter.io/ios/app/repstrack/id6799602208)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Repstrack Premium | $1.99 | per month |
| Repstrack Premium Annual | $14.99 | per year |


## Frequently asked questions

### Is BuiltDiff free?

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

### Is Repstrack free?

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

### Do BuiltDiff or Repstrack have ads?

Neither BuiltDiff nor Repstrack shows ads.

### Which is updated more often, BuiltDiff or Repstrack?

BuiltDiff ships an update every 2 weeks, and Repstrack every 2 weeks. Most recently, BuiltDiff was updated on October 4, 2026 and Repstrack on October 3, 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.*