# BuiltDiff vs HAMPAS

The clearest difference is in-app purchases: BuiltDiff at none against HAMPAS's 1. HAMPAS's advantage is update cadence (every 2 days vs every 2 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. HAMPAS sells 1 in-app purchase, starting at $1.99 per month. BuiltDiff asks for nothing beyond the download.

BuiltDiff ships an update every 2 weeks, HAMPAS every 2 days. The most recent releases landed on June 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | BuiltDiff | HAMPAS |
| --- | --- | --- |
| 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 days** |
| Monetization | Free | — |
| Size | 3 MB | 91 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Timmy Nguyen](https://appshunter.io/developer/1679678398) | [Rovin Giene Venturina](https://appshunter.io/developer/6775716591) |

## 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


### HAMPAS

[App page](https://appshunter.io/ios/app/hampas/id6775716589)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hampas Premium | $1.99 | per month |


## Frequently asked questions

### Is BuiltDiff free?

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

### Is HAMPAS free?

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

### Do BuiltDiff or HAMPAS have ads?

Neither BuiltDiff nor HAMPAS shows ads.

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

BuiltDiff ships an update every 2 weeks, and HAMPAS every 2 days. Most recently, BuiltDiff was updated on June 11, 2026 and HAMPAS on September 19, 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.*