# AquaticLog vs Reef Stability

AquaticLog and Reef Stability are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. AquaticLog sells 3 in-app purchases, starting at $4.99 per month and Reef Stability sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

AquaticLog ships an update every 10 days, Reef Stability weekly. Both last shipped on November 6, 2026.

## The numbers

| Metric | AquaticLog | Reef Stability |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (408 ratings)](https://appshunter.io/ios/app/aquaticlog/id583895470/reviews)** | — |
| Number of ratings | **408** | — |
| Positive reviews | 70.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Freemium | — |
| Size | 25 MB | 9 MB |
| Requires iOS | 18.1 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lonnex Inc](https://appshunter.io/developer/1547270716) | [YUSUF AYDIN](https://appshunter.io/developer/6771871523) |

## What reviewers say

### AquaticLog

[App page](https://appshunter.io/ios/app/aquaticlog/id583895470)

Manage your aquarium with this comprehensive platform. Track water parameters, schedule maintenance, log livestock, and document your tank's progress with photos and videos. Connect controllers for automatic data import and sync across devices.

**Highlights:** Water parameter tracking, Smart reminders for maintenance, Livestock management, Equipment and dosing logs, Controller integration, Photo and video diary, Community features

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Subscription | $4.99 | per month |
| Pro Yearly Membership | $39.99 | per year |
| Pro Lifetime Membership | $149.99 | one-time |


### Reef Stability

[App page](https://appshunter.io/ios/app/reef-stability-dosing-tracker/id6799461220)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |
| Premium Annual | $39.99 | per year |
| Premium Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is AquaticLog free?

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

### Is Reef Stability free?

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

### Do AquaticLog or Reef Stability have ads?

Neither AquaticLog nor Reef Stability shows ads.

### Which is updated more often, AquaticLog or Reef Stability?

AquaticLog ships an update every 10 days, and Reef Stability weekly. Most recently, AquaticLog was updated on November 6, 2026 and Reef Stability on November 6, 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.*