# Aquarist's Notes vs Aquarium Tank Tracker

The clearest difference is update cadence: Aquarist's Notes at every 6 days against Aquarium Tank Tracker's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Aquarist's Notes sells 2 in-app purchases, starting at $1.99 per month and Aquarium Tank Tracker sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Aquarist's Notes ships an update every 6 days, Aquarium Tank Tracker every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Aquarist's Notes | Aquarium Tank Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/aquarium-tank-tracker-aqualog/id6755156178/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 16 MB | 107 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ludek Slouf](https://appshunter.io/developer/1664390856) | [Recep Demirel](https://appshunter.io/developer/1475608770) |

## What reviewers say

### Aquarist's Notes

[App page](https://appshunter.io/ios/app/aquarists-notes/id6451252680)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Annual subscription | $9.99 | per year |


### Aquarium Tank Tracker

[App page](https://appshunter.io/ios/app/aquarium-tank-tracker-aqualog/id6755156178)

Easily manage your aquarium hobby with this comprehensive tracking tool. Log water changes, document your aquascaping progress with photos, and maintain a detailed inventory of your fish and plants. Receive smart reminders to ensure your aquatic ecosystem thrives.

**Highlights:** Visual timeline and journey tracking, Smart water change reminders, Live stock and species database, Logbook for notes and observations, Aquascaping photo documentation, Maintenance history tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AquaLog Pro: Unlimited Tanks | $3.99 | per month |
| AquaLog Pro Annual: Unlimited Tanks | $24.99 | per year |


## Frequently asked questions

### Is Aquarist's Notes free?

Aquarist's Notes is free to download, with in-app purchases available.

### Is Aquarium Tank Tracker free?

Aquarium Tank Tracker is free to download, with in-app purchases available.

### Do Aquarist's Notes or Aquarium Tank Tracker have ads?

Neither Aquarist's Notes nor Aquarium Tank Tracker shows ads.

### Which is updated more often, Aquarist's Notes or Aquarium Tank Tracker?

Aquarist's Notes ships an update every 6 days, and Aquarium Tank Tracker every 3 weeks. Most recently, Aquarist's Notes was updated on October 30, 2026 and Aquarium Tank Tracker on October 30, 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.*