# Idle Aquaria vs RetroKey

The clearest difference is in-app purchases: RetroKey at none against Idle Aquaria's 12. RetroKey also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Idle Aquaria sells 12 one-off in-app purchases. RetroKey asks for nothing beyond the download.

Idle Aquaria ships an update every 5 days, RetroKey every 4 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Idle Aquaria | RetroKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (10 ratings)](https://appshunter.io/ios/app/idle-aquaria-ocean-evolution/id6460979621/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 15.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 269 MB | 97 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Amberbite GmbH](https://appshunter.io/developer/1702231504) | [Oswaldo Moreira](https://appshunter.io/developer/1895988351) |

## What reviewers say

### Idle Aquaria

[App page](https://appshunter.io/ios/app/idle-aquaria-ocean-evolution/id6460979621)

Embark on a meditative journey in a calming aquatic world. Consume smaller beings to evolve and discover over 50 unique species. Track your achievements in a diverse marine compendium. Enjoy tranquil escapism and engaging progression with seasonal events.

**Highlights:** Meditative aquatic journey, Evolve and discover 50+ species, Creature library and achievements, Tranquil and relaxing gameplay, Seasonal events and special occasions, Optimized for tablets

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pre-Registration Bundle | Free | one-time |
| 60 x2 Pearls | $0.99 | one-time |
| Welcome Bundle! | $1.99 | one-time |
| Spooky Splash Bundle! | $3.99 | one-time |
| Remove Ads | $3.99 | one-time |
| 300 Pearls | $4.99 | one-time |
| 300 x2 Pearls | $4.99 | one-time |
| Spooky Splash Bundle! | $14.99 | one-time |
| 980 Pearls | $14.99 | one-time |
| 980 x2 Pearls | $14.99 | one-time |
| 3280 x2 Pearls | $49.99 | one-time |
| 6480 x2 Pearls | $99.99 | one-time |


### RetroKey

[App page](https://appshunter.io/ios/app/retrokey/id6765547109)

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

**In-app purchases:** none


## Frequently asked questions

### Is Idle Aquaria free?

Idle Aquaria is free to download, with in-app purchases available.

### Is RetroKey free?

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

### Do Idle Aquaria or RetroKey have ads?

Idle Aquaria shows ads; RetroKey does not.

### Which is updated more often, Idle Aquaria or RetroKey?

Idle Aquaria ships an update every 5 days, and RetroKey every 4 days. Most recently, Idle Aquaria was updated on October 7, 2026 and RetroKey on October 14, 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.*