# StrongerLab vs BuiltDiff

The clearest difference is iOS requirement: StrongerLab at 14.0 against BuiltDiff's 17.0. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for StrongerLab against 5.0 for BuiltDiff. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

StrongerLab ships an update every 3 weeks, BuiltDiff every 2 weeks. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | StrongerLab | BuiltDiff |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/strongerlab-workout-log/id1619046866/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/builtdiff/id6478643263/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 17 MB | 3 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Hyung Gyu Lee](https://appshunter.io/developer/1619046868) | [Timmy Nguyen](https://appshunter.io/developer/1679678398) |

## What reviewers say

### StrongerLab

[App page](https://appshunter.io/ios/app/strongerlab-workout-log/id1619046866)

This app helps weight training enthusiasts track their progress and analyze their workout habits. It allows for custom workout creation, real-time recording with voice input, and detailed statistical analysis through graphs and charts. Data is stored locally on iCloud Drive.

**Highlights:** Custom workout creation, Real-time exercise recording, Voice input support, Exercise pattern analysis, Graphs and charts for statistics, No registration required

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is StrongerLab free?

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

### Is BuiltDiff free?

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

### Which has better reviews, StrongerLab or BuiltDiff?

StrongerLab and BuiltDiff are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do StrongerLab or BuiltDiff have ads?

Neither StrongerLab nor BuiltDiff shows ads.

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

StrongerLab ships an update every 3 weeks, and BuiltDiff every 2 weeks. Most recently, StrongerLab was updated on September 29, 2026 and BuiltDiff on September 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.*