# IMOMU vs Invaders Retro

The clearest difference is update cadence: Invaders Retro at weekly against IMOMU's every 12 months. Invaders Retro also leads on device support (4 vs 2). IMOMU's advantage is iOS requirement (11.0 vs 14.2). On price, review sentiment, ads and in-app purchases there is nothing between them.

IMOMU costs $0.99 and Invaders Retro $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IMOMU ships an update every 12 months, Invaders Retro weekly. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | IMOMU | Invaders Retro |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 46 MB | 3 MB |
| Requires iOS | **11.0** | 14.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Hideki Kubo](https://appshunter.io/developer/1512674908) | [Justin Ngan](https://appshunter.io/developer/1467305957) |

## What reviewers say

### IMOMU

[App page](https://appshunter.io/ios/app/imomu/id1512674909)

Experience a retro electronic game with challenging gameplay and unlockable characters. Recreate a nostalgic atmosphere with authentic visual elements and enjoy a unique play experience.

**Highlights:** Difficult Mode B, Unlockable characters with unique rules, Nostalgic atmosphere recreation, Deteriorating reflectors and polarizers, Authentic retro gameplay

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

**In-app purchases:** none


### Invaders Retro

[App page](https://appshunter.io/ios/app/invaders-retro/id1544672448)

Defend Earth from relentless alien waves in this retro-inspired shooter. Discover hidden scoring mechanics as you battle through increasingly challenging levels to save the planet.

**Highlights:** Alien invasion gameplay, Wave-based challenges, Hidden scoring system, Retro graphics, Planet defense

**Features:** Game Controller support

**In-app purchases:** none


## Frequently asked questions

### Is IMOMU free?

IMOMU costs $0.99, with no in-app purchases.

### Is Invaders Retro free?

Invaders Retro costs $0.99, with no in-app purchases.

### Do IMOMU or Invaders Retro have ads?

Neither IMOMU nor Invaders Retro shows ads.

### Which is updated more often, IMOMU or Invaders Retro?

IMOMU ships an update every 12 months, and Invaders Retro weekly. Most recently, IMOMU was updated on October 7, 2026 and Invaders Retro 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.*