# Optimal Performance Center vs Nanafit

The clearest difference is update cadence: Nanafit at every 5 weeks against Optimal Performance Center's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Optimal Performance Center sells 1 one-off in-app purchase and Nanafit sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Optimal Performance Center ships an update every 3 months, Nanafit every 5 weeks. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Optimal Performance Center | Nanafit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 38 MB | 17 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trainero.com](https://appshunter.io/developer/1437140834) | [Trainda Oy](https://appshunter.io/developer/1642308722) |

## 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 |


### Nanafit

[App page](https://appshunter.io/ios/app/nanafit/id6455987314)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PIKKASEN POIS | $45.00 | one-time |
| 30 PÄIVÄN FIT BOOST | $49.00 | one-time |


## Frequently asked questions

### Is Optimal Performance Center free?

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

### Is Nanafit free?

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

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

Neither Optimal Performance Center nor Nanafit shows ads.

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

Optimal Performance Center ships an update every 3 months, and Nanafit every 5 weeks. Most recently, Optimal Performance Center was updated on October 8, 2026 and Nanafit on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*