# EvolutionCenter vs Mariabs · Interval Timer

The clearest difference is update cadence: Mariabs · Interval Timer at every 6 days against EvolutionCenter's every 2 weeks. EvolutionCenter's advantage is iOS requirement (12.0 vs 16.2). On price, ads, in-app purchases and device support there is nothing between them.

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

EvolutionCenter ships an update every 2 weeks, Mariabs · Interval Timer every 6 days. The most recent releases landed on September 11, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | EvolutionCenter | Mariabs · Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Size | 28 MB | 4 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmed Morsi](https://appshunter.io/developer/1301449577) | [PER MAGNE HELSETH](https://appshunter.io/developer/1895962879) |

## What reviewers say

### EvolutionCenter

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

**In-app purchases:** none


### Mariabs · Interval Timer

[App page](https://appshunter.io/ios/app/mariabs-interval-timer/id6765472133)

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

**In-app purchases:** none


## Frequently asked questions

### Is EvolutionCenter free?

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

### Is Mariabs · Interval Timer free?

Mariabs · Interval Timer is free to download, with no in-app purchases.

### Do EvolutionCenter or Mariabs · Interval Timer have ads?

Neither EvolutionCenter nor Mariabs · Interval Timer shows ads.

### Which is updated more often, EvolutionCenter or Mariabs · Interval Timer?

EvolutionCenter ships an update every 2 weeks, and Mariabs · Interval Timer every 6 days. Most recently, EvolutionCenter was updated on September 11, 2026 and Mariabs · Interval Timer on September 21, 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.*