# CTL vs OceanTech

The clearest difference is iOS requirement: CTL at 10.0 against OceanTech's 12.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CTL ships an update every 3 months, OceanTech every 2 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | CTL | OceanTech |
| --- | --- | --- |
| 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 3 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 10 MB | 73 MB |
| Requires iOS | **10.0** | 12.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [精豪 薛](https://appshunter.io/developer/1521407500) | [OceanTech](https://appshunter.io/developer/1539881331) |

## What reviewers say

### CTL

[App page](https://appshunter.io/ios/app/ctl-aqua/id1050633439)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is CTL free?

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

### Is OceanTech free?

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

### Do CTL or OceanTech have ads?

Neither CTL nor OceanTech shows ads.

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

CTL ships an update every 3 months, and OceanTech every 2 months. Most recently, CTL was updated on October 6, 2026 and OceanTech on October 3, 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.*