# Kasu Trainer vs Vaira

The clearest difference is update cadence: Vaira at every 6 days against Kasu Trainer's every 5 weeks. 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.

Kasu Trainer ships an update every 5 weeks, Vaira every 6 days. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Kasu Trainer | Vaira |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Size | 30 MB | 114 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christoph Nagl](https://appshunter.io/developer/987219997) | [Vaira](https://appshunter.io/developer/1490411209) |

## What reviewers say

### Kasu Trainer

[App page](https://appshunter.io/ios/app/kasu-trainer/id987219998)

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

**In-app purchases:** none


### Vaira

[App page](https://appshunter.io/ios/app/vaira/id1532739445)

**In-app purchases:** none


## Frequently asked questions

### Is Kasu Trainer free?

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

### Is Vaira free?

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

### Do Kasu Trainer or Vaira have ads?

Neither Kasu Trainer nor Vaira shows ads.

### Which is updated more often, Kasu Trainer or Vaira?

Kasu Trainer ships an update every 5 weeks, and Vaira every 6 days. Most recently, Kasu Trainer was updated on October 20, 2026 and Vaira on October 16, 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.*