# Quest vs AquariumNotes

The clearest difference is in-app purchases: Quest at none against AquariumNotes's 3. Quest also leads on ads (none vs shown). AquariumNotes's advantage is update cadence (every 5 weeks vs every 36 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. AquariumNotes sells 3 in-app purchases, starting at $2.99 per month. Quest asks for nothing beyond the download.

Quest ships an update every 36 months, AquariumNotes every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Quest | AquariumNotes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 36 months | **Every 5 weeks** |
| Size | 36 MB | 9 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tawajood LTD](https://appshunter.io/developer/1562558281) | [Yusuke Morimoto](https://appshunter.io/developer/1702989537) |

## What reviewers say

### Quest

[App page](https://appshunter.io/ios/app/quest/id1608197095)

**Features:** macOS Compatibility

**In-app purchases:** none


### AquariumNotes

[App page](https://appshunter.io/ios/app/aquariumnotes-tank-management/id6480376453)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PremiumMember/1Month | $2.99 | per month |
| PremiumMember/6Month | $9.99 | per 6 months |
| PremiumMember/1Year | $19.99 | per year |


## Frequently asked questions

### Is Quest free?

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

### Is AquariumNotes free?

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

### Do Quest or AquariumNotes have ads?

AquariumNotes shows ads; Quest does not.

### Which is updated more often, Quest or AquariumNotes?

Quest ships an update every 36 months, and AquariumNotes every 5 weeks. Most recently, Quest was updated on November 3, 2026 and AquariumNotes on November 4, 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.*