# Reef Buddy vs TUNZE

The clearest difference is review sentiment: Reef Buddy at 55% against TUNZE's 0%. Reef Buddy also leads on rating (3.9 vs 1.6) and ads (none vs shown). TUNZE's advantage is in-app purchases (none vs 4) and iOS requirement (15.1 vs 26.0). On price, ratings volume, monetization model and device support there is nothing between them.

Both are free to download. Reef Buddy sells 4 in-app purchases, starting at $0.99 per 7 days. TUNZE asks for nothing beyond the download.

Reef Buddy holds the better App Store score, 3.9 against 1.6. Both are backed by a comparable volume of ratings — 20 and 7 respectively. Written reviews point the same way: 55% of Reef Buddy's written reviews are positive against 0% of TUNZE's.

Reef Buddy ships an update every 2 weeks, TUNZE every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Reef Buddy | TUNZE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (20 ratings)](https://appshunter.io/ios/app/reef-buddy-reef-tank-tracker/id1593580822/reviews)** | [1.6 (7 ratings)](https://appshunter.io/ios/app/tunze/id6499044488/reviews) |
| Number of ratings | **20** | 7 |
| Positive reviews | **54.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 46 MB | 67 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [District Web](https://appshunter.io/developer/595076846) | [fynix GmbH](https://appshunter.io/developer/1733023937) |

## 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 |


### TUNZE

[App page](https://appshunter.io/ios/app/tunze/id6499044488)

Control TUNZE devices like pumps and controllers from a central app. It offers analysis and maintenance features for marine aquariums, helping to stabilize water chemistry and technology for a healthy environment.

**Highlights:** Centralized device control, Pump and controller management, Intelligent accessory features, Water chemistry analysis, Maintenance tracking, Marine aquarium companion

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is Reef Buddy free?

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

### Is TUNZE free?

TUNZE is free to download, with no in-app purchases.

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

Reef Buddy is rated higher. Reef Buddy averages 3.9 out of 5 from 20 ratings, while TUNZE averages 1.6 from 7 ratings.

### Do Reef Buddy or TUNZE have ads?

TUNZE shows ads; Reef Buddy does not.

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

Reef Buddy ships an update every 2 weeks, and TUNZE every 2 months. Most recently, Reef Buddy was updated on October 24, 2026 and TUNZE on October 24, 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.*