# BuiltDiff vs GymLog

The clearest difference is in-app purchases: BuiltDiff at none against GymLog's 2. BuiltDiff also leads on ads (none vs shown). GymLog's advantage is update cadence (daily vs every 2 weeks) and iOS requirement (12.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. GymLog sells 2 in-app purchases, starting at $2.00 per month. BuiltDiff asks for nothing beyond the download.

BuiltDiff ships an update every 2 weeks, GymLog daily. The most recent releases landed on June 11, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | BuiltDiff | GymLog |
| --- | --- | --- |
| 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** | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 3 MB | 74 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timmy Nguyen](https://appshunter.io/developer/1679678398) | [MERT ALI HANBAY](https://appshunter.io/developer/1736197351) |

## 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


### GymLog

[App page](https://appshunter.io/ios/app/gymlog-workout-tracker/id6587574504)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.00 | per month |
| Annual Premium | $12.00 | per year |


## Frequently asked questions

### Is BuiltDiff free?

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

### Is GymLog free?

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

### Do BuiltDiff or GymLog have ads?

GymLog shows ads; BuiltDiff does not.

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

BuiltDiff ships an update every 2 weeks, and GymLog daily. Most recently, BuiltDiff was updated on June 11, 2026 and GymLog on May 17, 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.*