# AQUARIUM STUDIO vs ReefKeep

The clearest difference is in-app purchases: AQUARIUM STUDIO at none against ReefKeep's 3. AQUARIUM STUDIO also leads on iOS requirement (8.0 vs 17.0). ReefKeep's advantage is update cadence (daily vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. ReefKeep sells 3 in-app purchases, starting at $4.99 per month. AQUARIUM STUDIO asks for nothing beyond the download.

AQUARIUM STUDIO ships an update fortnightly, ReefKeep daily. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AQUARIUM STUDIO | ReefKeep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Size | 3 MB | 2 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [sooyeong JEONG](https://appshunter.io/developer/1463252964) | [Enovira AB](https://appshunter.io/developer/1878624311) |

## What reviewers say

### AQUARIUM STUDIO

[App page](https://appshunter.io/ios/app/aquarium-studio/id1463252965)

**Features:** macOS Compatibility

**In-app purchases:** none


### ReefKeep

[App page](https://appshunter.io/ios/app/reefkeep/id6762442240)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefKeep Pro - monthly | $4.99 | per month |
| ReefKeep Pro - Yearly | $29.99 | per year |
| ReefKeep Lifetime Subscription | $79.99 | one-time |


## Frequently asked questions

### Is AQUARIUM STUDIO free?

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

### Is ReefKeep free?

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

### Do AQUARIUM STUDIO or ReefKeep have ads?

Neither AQUARIUM STUDIO nor ReefKeep shows ads.

### Which is updated more often, AQUARIUM STUDIO or ReefKeep?

AQUARIUM STUDIO ships an update fortnightly, and ReefKeep daily. Most recently, AQUARIUM STUDIO was updated on October 26, 2026 and ReefKeep on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*