# Mobius vs ReefMate

The clearest difference is in-app purchases: Mobius at none against ReefMate's 2. Mobius also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ReefMate sells 2 in-app purchases, starting at $4.99 per month. Mobius asks for nothing beyond the download.

Mobius ships an update every 2 months, ReefMate every 5 weeks. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Mobius | ReefMate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (331 ratings)](https://appshunter.io/ios/app/mobius/id1453744762/reviews)** | — |
| Number of ratings | **331** | — |
| Positive reviews | 26.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 95 MB | 133 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [C2 Development, LLC](https://appshunter.io/developer/731463338) | [Mustafa Kulac](https://appshunter.io/developer/1782678392) |

## What reviewers say

### 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


### ReefMate

[App page](https://appshunter.io/ios/app/reefmate-aquarium-tracker-and-log/id6754282635)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $34.99 | per year |


## Frequently asked questions

### Is Mobius free?

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

### Is ReefMate free?

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

### Do Mobius or ReefMate have ads?

Neither Mobius nor ReefMate shows ads.

### Which is updated more often, Mobius or ReefMate?

Mobius ships an update every 2 months, and ReefMate every 5 weeks. Most recently, Mobius was updated on October 25, 2026 and ReefMate on October 26, 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.*