# Optimal Performance Center vs Kestävä

The clearest difference is in-app purchases: Kestävä at none against Optimal Performance Center's 1. Kestävä also leads on iOS requirement (11.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Optimal Performance Center sells 1 one-off in-app purchase. Kestävä asks for nothing beyond the download.

Optimal Performance Center ships an update every 3 months, Kestävä every 6 weeks. The most recent releases landed on October 8, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Optimal Performance Center | Kestävä |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Size | 38 MB | 42 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trainero.com](https://appshunter.io/developer/1437140834) | [Tilt Software Limited](https://appshunter.io/developer/898473961) |

## What reviewers say

### Optimal Performance Center

[App page](https://appshunter.io/ios/app/optimal-performance-center/id1604557129)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Online Coaching Plan | $89.99 | one-time |


### Kestävä

[App page](https://appshunter.io/ios/app/kestava/id6557050770)

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

**In-app purchases:** none


## Frequently asked questions

### Is Optimal Performance Center free?

Optimal Performance Center is free to download, with in-app purchases available.

### Is Kestävä free?

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

### Do Optimal Performance Center or Kestävä have ads?

Neither Optimal Performance Center nor Kestävä shows ads.

### Which is updated more often, Optimal Performance Center or Kestävä?

Optimal Performance Center ships an update every 3 months, and Kestävä every 6 weeks. Most recently, Optimal Performance Center was updated on October 8, 2026 and Kestävä on September 22, 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.*