# Hanna Lab vs REEFB

The clearest difference is review sentiment: Hanna Lab at 45% against REEFB's 0%. Hanna Lab also leads on rating (3.7 vs 3.0) and ratings volume (11 vs 1). REEFB's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hanna Lab holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: Hanna Lab has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 45% of Hanna Lab's written reviews are positive against 0% of REEFB's.

Hanna Lab ships an update every 5 months, REEFB every 2 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Hanna Lab | REEFB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (11 ratings)](https://appshunter.io/ios/app/hanna-lab/id913755813/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/reefb/id6738972525/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | **45.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 32 MB | 39 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hanna Instruments, Inc.](https://appshunter.io/developer/913755816) | [CROWN P & E CO., LTD.](https://appshunter.io/developer/1783223891) |

## What reviewers say

### Hanna Lab

[App page](https://appshunter.io/ios/app/hanna-lab/id913755813)

Transform your mobile device into a professional-grade pH meter or data management system. Connect with compatible Hanna Instruments probes and meters to conduct precise measurements, store data securely, and access it via the cloud.

**Highlights:** pH meter functionality with Bluetooth probes, Data management with compatible meters, Hanna Cloud compatibility for data sync, Live measurements and trend graphs, Data export in PDF and CSV formats, Calibration and logging features

**Features:** macOS Compatibility

**In-app purchases:** none


### REEFB

[App page](https://appshunter.io/ios/app/reefb/id6738972525)

This app offers intelligent control for REEF B Series devices, simplifying aquarium management. It allows for effortless monitoring and maintenance of aquaculture equipment and schedules via Bluetooth connectivity.

**Highlights:** Dosing modes: 24-hour average, custom, single-dose, Precise dosing calibration, Flexible schedule adjustment, Multi-device management via Bluetooth, Accurate spectrum scheduling for LED lights, Master-sub synchronization for lights, Scene modes for LED lights

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

**In-app purchases:** none


## Frequently asked questions

### Is Hanna Lab free?

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

### Is REEFB free?

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

### Which has better reviews, Hanna Lab or REEFB?

Hanna Lab is rated higher. Hanna Lab averages 3.7 out of 5 from 11 ratings, while REEFB averages 3.0 from 1 ratings.

### Do Hanna Lab or REEFB have ads?

Neither Hanna Lab nor REEFB shows ads.

### Which is updated more often, Hanna Lab or REEFB?

Hanna Lab ships an update every 5 months, and REEFB every 2 months. Most recently, Hanna Lab was updated on October 24, 2026 and REEFB on October 30, 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.*