# Otus Game vs Fly Eye Zapper

The clearest difference is in-app purchases: Otus Game at none against Fly Eye Zapper's 1. Otus Game also leads on iOS requirement (12.0 vs 15.6). Fly Eye Zapper's advantage is review sentiment (100% vs 67%) and update cadence (every 4 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Fly Eye Zapper sells 1 one-off in-app purchase. Otus Game asks for nothing beyond the download.

Otus Game ships an update every 2 weeks, Fly Eye Zapper every 4 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Otus Game | Fly Eye Zapper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fly-eye-zapper/id6755526730/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 174 MB | 47 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EDENLUX Corp.](https://appshunter.io/developer/1443712682) | [John King](https://appshunter.io/developer/1282345641) |

## What reviewers say

### Otus Game

[App page](https://appshunter.io/ios/app/otus-game/id6476952932)

Engage in a variety of games designed to improve eye health and vision. Requires membership and eye score measurement through a companion app to begin playing.

**Highlights:** Eye exercise games, Vision improvement focus, Requires Otus Plus membership, Eye score measurement integration, Suitable for tired eyes

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

**In-app purchases:** none


### Fly Eye Zapper

[App page](https://appshunter.io/ios/app/fly-eye-zapper/id6755526730)

Test your vision and reflexes by spotting and tapping flies as they appear. Progress through challenging waves, earn rewards, and compete for high scores in this fast-paced, addictive game.

**Highlights:** Eye-tracking action, Challenging fly waves, Power-ups and rewards, High score competition, Colorful cartoon graphics, Satisfying zapping sounds

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO | $4.99 | one-time |


## Frequently asked questions

### Is Otus Game free?

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

### Is Fly Eye Zapper free?

Fly Eye Zapper is free to download, with in-app purchases available.

### Do Otus Game or Fly Eye Zapper have ads?

Neither Otus Game nor Fly Eye Zapper shows ads.

### Which is updated more often, Otus Game or Fly Eye Zapper?

Otus Game ships an update every 2 weeks, and Fly Eye Zapper every 4 days. Most recently, Otus Game was updated on October 20, 2026 and Fly Eye Zapper on October 24, 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.*