# Simple Workout Tracker vs Delta

The clearest difference is iOS requirement: Delta at 15.1 against Simple Workout Tracker's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Simple Workout Tracker sells 2 in-app purchases, starting at $2.99 per month and Delta sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Simple Workout Tracker ships an update fortnightly, Delta every 11 days. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Simple Workout Tracker | Delta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simple-workout-tracker-muscly/id6446846782/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 66 MB | 48 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DAIKI YUASA](https://appshunter.io/developer/1632691655) | [B8T LABS](https://appshunter.io/developer/6778463963) |

## What reviewers say

### Simple Workout Tracker

[App page](https://appshunter.io/ios/app/simple-workout-tracker-muscly/id6446846782)

This strength training log helps gym enthusiasts and bodybuilders track workouts with ease. It offers automatic 1RM calculations, advanced set tracking for supersets and tri-sets, and detailed progress graphs to measure gains and crush fitness goals.

**Highlights:** Automatic 1RM calculation, Advanced set tracking (supersets, tri-sets), Comprehensive progress tracking, Color-coded workout calendar, In-depth analytics and graphs, Dark mode and rest timer

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MUSCLY PREMIUM | $2.99 | per month |
| Premium Plan | $24.99 | per year |


### Delta

[App page](https://appshunter.io/ios/app/delta/id6778463961)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delta Pro (Remove Ads) | $1.99 | one-time |


## Frequently asked questions

### Is Simple Workout Tracker free?

Simple Workout Tracker is free to download, with in-app purchases available.

### Is Delta free?

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

### Do Simple Workout Tracker or Delta have ads?

Both Simple Workout Tracker and Delta show ads.

### Which is updated more often, Simple Workout Tracker or Delta?

Simple Workout Tracker ships an update fortnightly, and Delta every 11 days. Most recently, Simple Workout Tracker was updated on October 15, 2026 and Delta on October 2, 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.*