# ReefDoser vs Reef Buddy

The clearest difference is rating: Reef Buddy at 3.9 against ReefDoser's 1.0. Reef Buddy also leads on update cadence (every 2 weeks vs every 3 months) and ratings volume (20 vs 1). ReefDoser's advantage is in-app purchases (none vs 4) and iOS requirement (10.0 vs 26.0). On price, review sentiment, ads 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. ReefDoser asks for nothing beyond the download.

Reef Buddy holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: Reef Buddy has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 54% and 55% positive.

ReefDoser ships an update every 3 months, Reef Buddy every 2 weeks. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ReefDoser | Reef Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/reefdoser/id353011315/reviews) | **[3.9 (20 ratings)](https://appshunter.io/ios/app/reef-buddy-reef-tank-tracker/id1593580822/reviews)** |
| Number of ratings | 1 | **20** |
| Positive reviews | 54.2% of reviews | **54.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 23 MB | 46 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Pixelwand Ltd](https://appshunter.io/developer/353011318) | [District Web](https://appshunter.io/developer/595076846) |

## What reviewers say

### ReefDoser

[App page](https://appshunter.io/ios/app/reefdoser/id353011315)

This app helps tropical marine aquarium owners calculate precise dosages for essential elements like Calcium, Magnesium, and Alkalinity. It features an extensive database of over 70 products to ensure optimal water parameters for your reef tank.

**Highlights:** Element dosage calculation, Calcium, Magnesium, Alkalinity tracking, Potassium, Iodine, Strontium, Boron, Silicate, Product database (70+ items), Tropical marine aquarium focus

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ReefDoser free?

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

### Is Reef Buddy free?

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

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

Reef Buddy is rated higher. ReefDoser averages 1.0 out of 5 from 1 ratings, while Reef Buddy averages 3.9 from 20 ratings.

### Do ReefDoser or Reef Buddy have ads?

Neither ReefDoser nor Reef Buddy shows ads.

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

ReefDoser ships an update every 3 months, and Reef Buddy every 2 weeks. Most recently, ReefDoser was updated on October 9, 2026 and Reef Buddy 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.*