# EvolutionCenter vs zRep

The clearest difference is in-app purchases: EvolutionCenter at none against zRep's 3. EvolutionCenter also leads on iOS requirement (12.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. zRep sells 3 in-app purchases, starting at $4.99 per month. EvolutionCenter asks for nothing beyond the download.

EvolutionCenter ships an update every 2 weeks, zRep every 9 days. The most recent releases landed on September 11, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | EvolutionCenter | zRep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zrep-workout-tracker-gym-log/id6761623873/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 28 MB | 19 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmed Morsi](https://appshunter.io/developer/1301449577) | [Seifeldin Zook](https://appshunter.io/developer/1890507507) |

## What reviewers say

### EvolutionCenter

[App page](https://appshunter.io/ios/app/evolutioncenter/id1522117063)

**In-app purchases:** none


### zRep

[App page](https://appshunter.io/ios/app/zrep-workout-tracker-gym-log/id6761623873)

Log your gym workouts, track your lifts, and organize your training sessions. This app offers live workout logging, a comprehensive exercise library, and progress tracking. An optional subscription unlocks advanced features like unlimited templates and partner training.

**Highlights:** Live workout logging with detailed metrics, Extensive exercise library with search, Progress charts and personal records, Apple Watch companion app, Workout template saving, Partner training features (Pro), Body measurements tracking (Pro)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| zRep Pro | $4.99 | per month |
| zRep Pro | $29.99 | per year |
| zRep Pro — Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is EvolutionCenter free?

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

### Is zRep free?

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

### Do EvolutionCenter or zRep have ads?

Neither EvolutionCenter nor zRep shows ads.

### Which is updated more often, EvolutionCenter or zRep?

EvolutionCenter ships an update every 2 weeks, and zRep every 9 days. Most recently, EvolutionCenter was updated on September 11, 2026 and zRep on September 13, 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.*