# Hanna Lab vs Mobius

The clearest difference is rating: Hanna Lab at 4.0 against Mobius's 2.0. Hanna Lab also leads on review sentiment (45% vs 27%). Mobius's advantage is ratings volume (328 vs 10) and update cadence (every 2 months vs every 5 months). 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, 4.0 against 2.0. That said, the two scores are not equally well evidenced: Mobius has 328 ratings behind it against 10, 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 27% of Mobius's.

Hanna Lab ships an update every 5 months, Mobius every 2 months. The most recent releases landed on August 2, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Hanna Lab | Mobius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (10 ratings)](https://appshunter.io/ios/app/hanna-lab/id913755813/reviews)** | [2.0 (328 ratings)](https://appshunter.io/ios/app/mobius/id1453744762/reviews) |
| Number of ratings | 10 | **328** |
| Positive reviews | **45.5% of reviews** | 27.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 32 MB | 95 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hanna Instruments, Inc.](https://appshunter.io/developer/913755816) | [C2 Development, LLC](https://appshunter.io/developer/731463338) |

## 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


### Mobius

[App page](https://appshunter.io/ios/app/mobius/id1453744762)

This app provides intelligent control for aquarium equipment, simplifying management of multiple tanks. Create custom scenes, schedules, and access quick status updates to maintain your aquatic environment with ease.

**Highlights:** Manage multiple tanks, Create custom scenes, Drag-and-drop scheduling, Lighting control with templates, Flow control for pumps, Dosing automation and tracking

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Intuitive interface
- 👍 Controllability of devices
- 👍 Potential for future improvements

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Time/date sync problems
- 🐛 Unreliable performance
- 🐛 Buggy and glitchy
- 🐛 Difficult to navigate

**Reported bugs**

- Constant disconnections
- Inability to add/connect devices
- Lighting schedule not working as expected
- Time/date resets randomly
- Crashes and freezes

**Requested features**

- Remote access and control
- Improved lighting schedule customization
- Pump/device off option
- Sync settings across devices
- Better documentation and tutorials


## Frequently asked questions

### Is Hanna Lab free?

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

### Is Mobius free?

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

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

Hanna Lab is rated higher. Hanna Lab averages 4.0 out of 5 from 10 ratings, while Mobius averages 2.0 from 328 ratings.

### Do Hanna Lab or Mobius have ads?

Neither Hanna Lab nor Mobius shows ads.

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

Hanna Lab ships an update every 5 months, and Mobius every 2 months. Most recently, Hanna Lab was updated on August 2, 2026 and Mobius on September 21, 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.*