# Trainer Amigo vs Ko

The clearest difference is in-app purchases: Ko at none against Trainer Amigo's 1. Ko also leads on update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Trainer Amigo sells 1 one-off in-app purchase. Ko asks for nothing beyond the download.

Trainer Amigo ships an update every 5 months, Ko monthly. The most recent releases landed on September 20, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Trainer Amigo | Ko |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | — | Free |
| Size | 45 MB | 287 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Coach Amigo B.V.](https://appshunter.io/developer/1541871928) | [Head Shot Mofo Ltd](https://appshunter.io/developer/1588802154) |

## What reviewers say

### Trainer Amigo

[App page](https://appshunter.io/ios/app/trainer-amigo/id1578445214)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year Full Access | $8.99 | one-time |


### Ko

[App page](https://appshunter.io/ios/app/ko-cha/id1588802152)

Turn your phone into an AR weapon for real-world paintball-style battles. Engage in discreet combat anywhere, sending animated kill videos to your targets. Compete with friends or strangers in a unique augmented reality experience.

**Highlights:** AR weaponization of phone, Paintball-style battles, Animated kill videos, Face detection targeting, Play anywhere discreetly, Variety of weapons, Community status

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

**In-app purchases:** none


## Frequently asked questions

### Is Trainer Amigo free?

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

### Is Ko free?

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

### Do Trainer Amigo or Ko have ads?

Neither Trainer Amigo nor Ko shows ads.

### Which is updated more often, Trainer Amigo or Ko?

Trainer Amigo ships an update every 5 months, and Ko monthly. Most recently, Trainer Amigo was updated on September 20, 2026 and Ko on October 3, 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.*