# ReefBay vs EHEIM Digital Connect

The clearest difference is review sentiment: ReefBay at 82% against EHEIM Digital Connect's 15%. ReefBay also leads on rating (4.8 vs 1.7) and update cadence (weekly vs every 5 weeks). EHEIM Digital Connect's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ReefBay sells 4 in-app purchases, starting at $4.99 per month. EHEIM Digital Connect asks for nothing beyond the download.

ReefBay holds the better App Store score, 4.8 against 1.7. That said, the two scores are not equally well evidenced: ReefBay has 455 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 82% of ReefBay's written reviews are positive against 15% of EHEIM Digital Connect's.

ReefBay ships an update weekly, EHEIM Digital Connect every 5 weeks. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ReefBay | EHEIM Digital Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (455 ratings)](https://appshunter.io/ios/app/reefbay/id6478054386/reviews)** | [1.7 (12 ratings)](https://appshunter.io/ios/app/eheim-digital-connect/id6501949799/reviews) |
| Number of ratings | **455** | 12 |
| Positive reviews | **82.5% of reviews** | 14.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Freemium | **Free** |
| Size | 88 MB | 47 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toolit Media LLC](https://appshunter.io/developer/1331221462) | [Eheim GmbH & Co. KG](https://appshunter.io/developer/888209218) |

## What reviewers say

### ReefBay

[App page](https://appshunter.io/ios/app/reefbay/id6478054386)

Manage your saltwater aquarium with this app. Track water parameters, log inhabitants, and get task reminders. Connect with a community of hobbyists, explore a marketplace, and access guides for a thriving reef tank.

**Highlights:** Local marketplace for buying/selling, Explore coral and fish listings, Personalized tank profiles, Water parameter tracking, Community forums and support, Task reminders for maintenance, Aquarium guides and resources

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefBay DeepDive | $4.99 | per month |
| ReefBay DeepDive | $4.99 | per month |
| ReefBay DeepDive | $29.99 | per year |
| ReefBay DeepDive | $39.99 | per year |

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 📊 Comprehensive parameter tracking with visual graphs
- 🌐 Active community for sharing and learning
- 🛒 Integrated marketplace for buying/selling coral and equipment
- 💬 Social hub connecting reef keepers

**What reviewers complain about**

- 🐛 Coral identification feature is inaccurate
- 🎨 Inconsistent UI presentation and design
- ❌ Navigation dead ends and UI issues
- 📧 Excessive email notifications despite unsubscribing
- 🔐 Account deletion/data loss concerns

**Reported bugs**

- Coral ID misidentifies corals as fish
- App stopped working after update
- Cannot click create button due to text overlap
- Account mysteriously deleted
- Unsubscribe function not working for emails

**Requested features**

- Add ammonia and nitrite to water parameter tracking
- Improve coral identification accuracy
- Enhance UI consistency and presentation
- Better email notification management


### EHEIM Digital Connect

[App page](https://appshunter.io/ios/app/eheim-digital-connect/id6501949799)

This app allows you to connect, set up, and manage various EHEIM digital aquarium devices from your smartphone or tablet. Customize settings for optimal results and ensure your devices are always up-to-date for a thriving aquatic environment.

**Highlights:** Connect and manage digital aquarium devices, Customize device settings, Update device firmware, Control filters, lighting, heaters, and more, Monitor aquarium components

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

**In-app purchases:** none


## Frequently asked questions

### Is ReefBay free?

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

### Is EHEIM Digital Connect free?

EHEIM Digital Connect is free to download, with no in-app purchases.

### Which has better reviews, ReefBay or EHEIM Digital Connect?

ReefBay is rated higher. ReefBay averages 4.8 out of 5 from 455 ratings, while EHEIM Digital Connect averages 1.7 from 12 ratings.

### Do ReefBay or EHEIM Digital Connect have ads?

ReefBay shows ads; EHEIM Digital Connect does not.

### Which is updated more often, ReefBay or EHEIM Digital Connect?

ReefBay ships an update weekly, and EHEIM Digital Connect every 5 weeks. Most recently, ReefBay was updated on October 16, 2026 and EHEIM Digital Connect on October 15, 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.*