# YKBI vs Waves Gym

The clearest difference is update cadence: Waves Gym at fortnightly against YKBI's every 10 months. Waves Gym also leads on iOS requirement (11.0 vs 15.0). 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.

YKBI ships an update every 10 months, Waves Gym fortnightly. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | YKBI | Waves Gym |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Size | 39 MB | 12 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FitPhilia](https://appshunter.io/developer/1178311498) | [Tapiyoka Technologies Private Limited](https://appshunter.io/developer/1229399392) |

## What reviewers say

### YKBI

[App page](https://appshunter.io/ios/app/ykbi/id6445909273)

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

**In-app purchases:** none


### Waves Gym

[App page](https://appshunter.io/ios/app/waves-gym/id6449519089)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is YKBI free?

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

### Is Waves Gym free?

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

### Do YKBI or Waves Gym have ads?

Neither YKBI nor Waves Gym shows ads.

### Which is updated more often, YKBI or Waves Gym?

YKBI ships an update every 10 months, and Waves Gym fortnightly. Most recently, YKBI was updated on October 22, 2026 and Waves Gym on October 11, 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.*