# Reefminder Fish Log vs Reefability

The clearest difference is review sentiment: Reefminder Fish Log at 85% against Reefability's 27%. Reefminder Fish Log also leads on rating (4.3 vs 2.9) and in-app purchases (none vs 2). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Reefability sells 2 in-app purchases, starting at $5.99 per month. Reefminder Fish Log asks for nothing beyond the download.

Reefminder Fish Log holds the better App Store score, 4.3 against 2.9. Both are backed by a comparable volume of ratings — 54 and 29 respectively. Written reviews point the same way: 85% of Reefminder Fish Log's written reviews are positive against 27% of Reefability's.

Reefminder Fish Log ships an update weekly, Reefability every 4 days. The most recent releases landed on August 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Reefminder Fish Log | Reefability |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (54 ratings)](https://appshunter.io/ios/app/reefminder-fish-log/id1142472034/reviews)** | [2.9 (29 ratings)](https://appshunter.io/ios/app/reefability/id6636472070/reviews) |
| Number of ratings | **54** | 29 |
| Positive reviews | **85.3% of reviews** | 26.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 111 MB | 70 MB |
| Requires iOS | **13.0** | 15.0.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Fanaian](https://appshunter.io/developer/1110843610) | [Reefability](https://appshunter.io/developer/1762764786) |

## What reviewers say

### Reefminder Fish Log

[App page](https://appshunter.io/ios/app/reefminder-fish-log/id1142472034)

Easily manage your saltwater aquarium with this intuitive log and inventory app. Track livestock, water changes, equipment, and observations with a timeline-based interface. Ideal for reef keepers who want to document their tank's history.

**Highlights:** Aquarium log and inventory management, Reef keeping tools, Tank maintenance reminders, Timeline-based interface, Log livestock, water changes, equipment, Record observations

**In-app purchases:** none


### Reefability

[App page](https://appshunter.io/ios/app/reefability/id6636472070)

This AI-powered app offers scientific precision for managing coral reef aquariums. It analyzes microbiome health, water chemistry, and light optimization, and can identify issues from tank photos. It provides tools for hobbyists and professionals to maintain thriving reef ecosystems.

**Highlights:** AI-driven analysis of reef tank health, Smart photo diagnostics for issue identification, Evidence-based solutions and recommendations, Ecosystem stability insights, Professional tools for reef stores and professionals, Integrated parameter monitoring

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-Month | $5.99 | per month |
| 12-Month | $24.99 | per year |


## Frequently asked questions

### Is Reefminder Fish Log free?

Reefminder Fish Log is free to download, with no in-app purchases.

### Is Reefability free?

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

### Which has better reviews, Reefminder Fish Log or Reefability?

Reefminder Fish Log is rated higher. Reefminder Fish Log averages 4.3 out of 5 from 54 ratings, while Reefability averages 2.9 from 29 ratings.

### Do Reefminder Fish Log or Reefability have ads?

Neither Reefminder Fish Log nor Reefability shows ads.

### Which is updated more often, Reefminder Fish Log or Reefability?

Reefminder Fish Log ships an update weekly, and Reefability every 4 days. Most recently, Reefminder Fish Log was updated on August 1, 2026 and Reefability on September 23, 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.*