# ReefToolkit vs Aquarium Water Tracker

The clearest difference is update cadence: ReefToolkit at weekly against Aquarium Water Tracker's every 2 months. Aquarium Water Tracker's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ReefToolkit sells 6 in-app purchases, starting at $3.99 per month and Aquarium Water Tracker sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReefToolkit ships an update weekly, Aquarium Water Tracker every 2 months. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ReefToolkit | Aquarium Water Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/reeftoolkit/id6753037682/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 121 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Evolion, LLC](https://appshunter.io/developer/1842220079) | [Karol Jaworski](https://appshunter.io/developer/1799974477) |

## What reviewers say

### ReefToolkit

[App page](https://appshunter.io/ios/app/reeftoolkit/id6753037682)

Manage and monitor all aspects of your saltwater aquarium with this comprehensive toolkit. Track water parameters, livestock, feeding schedules, expenses, and equipment. AI insights provide actionable predictions for a healthier reef.

**Highlights:** AI-powered insights and predictions, Multi-tank management, Water parameter tracking, Livestock and species records, Nutrient and water change scheduling, Expense and equipment management, Offline-first architecture with cloud sync

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefToolkit Hobby Monthly | $3.99 | per month |
| ReefToolkit Pro Monthly | $9.99 | per month |
| ReefToolkit Hobby Yearly | $29.99 | per year |
| ReefToolkit Business Monthly | $29.99 | per month |
| ReefToolkit Pro Yearly | $79.99 | per year |
| ReefToolkit Business Yearly | $249.99 | per year |


### Aquarium Water Tracker

[App page](https://appshunter.io/ios/app/aquarium-water-tracker-reef/id6759508580)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $39.99 | per year |
| Annual (Intro Offer) | $39.99 | per year |


## Frequently asked questions

### Is ReefToolkit free?

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

### Is Aquarium Water Tracker free?

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

### Do ReefToolkit or Aquarium Water Tracker have ads?

Neither ReefToolkit nor Aquarium Water Tracker shows ads.

### Which is updated more often, ReefToolkit or Aquarium Water Tracker?

ReefToolkit ships an update weekly, and Aquarium Water Tracker every 2 months. Most recently, ReefToolkit was updated on November 6, 2026 and Aquarium Water Tracker on October 31, 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.*