# OceanTech vs Door Key

OceanTech and Door Key are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, Door Key every 5 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OceanTech | Door Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/oceantech/id1665886892/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 73 MB | 67 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OceanTech](https://appshunter.io/developer/1539881331) | [ECONDOS SISTEMAS LTDA - ME](https://appshunter.io/developer/1144142573) |

## 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


### Door Key

[App page](https://appshunter.io/ios/app/door-key/id6752425863)

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

**In-app purchases:** none


## Frequently asked questions

### Is OceanTech free?

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

### Is Door Key free?

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

### Do OceanTech or Door Key have ads?

Neither OceanTech nor Door Key shows ads.

### Which is updated more often, OceanTech or Door Key?

OceanTech ships an update every 2 months, and Door Key every 5 weeks. Most recently, OceanTech was updated on October 24, 2026 and Door Key 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.*