# Reef Buddy vs ReefLynk

The clearest difference is review sentiment: ReefLynk at 100% against Reef Buddy's 55%. ReefLynk also leads on rating (5.0 vs 3.9) and update cadence (daily vs fortnightly). Reef Buddy's advantage is ratings volume (20 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Reef Buddy sells 4 in-app purchases, starting at $0.99 per 7 days and ReefLynk sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReefLynk holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Reef Buddy has 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 55% of Reef Buddy's written reviews are positive against 100% of ReefLynk's.

Reef Buddy ships an update fortnightly, ReefLynk daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Reef Buddy | ReefLynk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (20 ratings)](https://appshunter.io/ios/app/reef-buddy-reef-tank-tracker/id1593580822/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/reeflynk/id6759136977/reviews)** |
| Number of ratings | **20** | 2 |
| Positive reviews | 54.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Freemium | Freemium |
| Size | 46 MB | 22 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [maxime marinel](https://appshunter.io/developer/595076846) | [MICHAEL KARL TAYLOR](https://appshunter.io/developer/1877026250) |

## What reviewers say

### Reef Buddy

[App page](https://appshunter.io/ios/app/reef-buddy-reef-tank-tracker/id1593580822)

Easily log, monitor, and analyze your saltwater aquarium's critical parameters. Get smart insights and personalized advice to maintain a healthy reef tank. Syncs across devices and offers guidance for manual test results.

**Highlights:** Log critical aquarium parameters, Monitor KH, salinity, pH, Ca, Mg, and more, Analyze data with automated insights, Sync data across iPhone and iPad, Guidance for manual test kit results, Personalized advice with premium subscription

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reef Buddy Pro Weekly | $0.99 | per 7 days |
| Reef Buddy Pro | $1.99 | per month |
| Reef buddy pro month | $3.99 | per month |
| Reef buddy pro annual | $44.99 | per year |


### ReefLynk

[App page](https://appshunter.io/ios/app/reeflynk/id6759136977)

Manage your reef aquarium with this comprehensive app. Track water parameters, schedule maintenance, and catalog your livestock with photos. Syncs across devices and offers email reminders to keep your tank healthy.

**Highlights:** Water parameter tracking, Maintenance scheduling, Livestock cataloging, Real-time device sync, Email reminders

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefLynk Pro | $2.99 | per month |
| ReefLynk Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Reef Buddy free?

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

### Is ReefLynk free?

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

### Which has better reviews, Reef Buddy or ReefLynk?

ReefLynk is rated higher. Reef Buddy averages 3.9 out of 5 from 20 ratings, while ReefLynk averages 5.0 from 2 ratings.

### Do Reef Buddy or ReefLynk have ads?

Neither Reef Buddy nor ReefLynk shows ads.

### Which is updated more often, Reef Buddy or ReefLynk?

Reef Buddy ships an update fortnightly, and ReefLynk daily. Most recently, Reef Buddy was updated on November 3, 2026 and ReefLynk 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.*