# OceanTech vs Mantis

The clearest difference is update cadence: OceanTech at every 2 months against Mantis's every 12 months. On price, ads, in-app purchases and device support there is nothing between them.

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

OceanTech ships an update every 2 months, Mantis every 12 months. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | OceanTech | Mantis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/oceantech/id1665886892/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Free | — |
| Size | 73 MB | 91 MB |
| Requires iOS | 12.4 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [OceanTech](https://appshunter.io/developer/1539881331) | [英臣 王](https://appshunter.io/developer/1703253008) |

## What reviewers say

### OceanTech

[App page](https://appshunter.io/ios/app/oceantech/id1665886892)

This app helps manage and optimize your smart aquarium experience. It offers enhanced functionality for better control and enjoyment of your aquatic environment.

**Highlights:** Smart aquarium management, Optimized functionality, Enhanced user experience, Aquatic environment control

**Features:** macOS Compatibility

**In-app purchases:** none


### Mantis

[App page](https://appshunter.io/ios/app/mantis/id6462783149)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OceanTech free?

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

### Is Mantis free?

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

### Do OceanTech or Mantis have ads?

Neither OceanTech nor Mantis shows ads.

### Which is updated more often, OceanTech or Mantis?

OceanTech ships an update every 2 months, and Mantis every 12 months. Most recently, OceanTech was updated on October 3, 2026 and Mantis on October 2, 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.*