# AHD vs Abyss

The clearest difference is rating: Abyss at 4.0 against AHD's 3.0. Abyss also leads on update cadence (every 2 months vs every 12 months). AHD's advantage is iOS requirement (9.1 vs 13.0). On price, ratings volume, 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.

Abyss holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

AHD ships an update every 12 months, Abyss every 2 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | AHD | Abyss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/ahd-iamcs/id532543742/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/abyss-infinite/id6747150343/reviews)** |
| Number of ratings | 2 | **3** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 34 MB | 36 MB |
| Requires iOS | **9.1** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Böning Automationstechnologie GmbH & Co. KG](https://appshunter.io/developer/532543745) | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) |

## What reviewers say

### AHD

[App page](https://appshunter.io/ios/app/ahd-iamcs/id532543742)

Visualize and remotely control ship functions like lights and air conditioning from your iPad or iPhone. Seamlessly integrate with existing onboard networks for maximum operational safety. Customize the interface and assign specific access levels for guests.

**Highlights:** Ship data visualization, Remote control of ship functions, Integration with onboard networks, Customizable graphical user interface, Operational safety features, Guest authorization levels

**Features:** macOS Compatibility

**In-app purchases:** none


### Abyss

[App page](https://appshunter.io/ios/app/abyss-infinite/id6747150343)

Monitor your device's battery, system diagnostics, and charger status. This app also allows for wireless firmware updates for compatible devices, all managed from your mobile phone.

**Highlights:** Real-time battery data, System diagnostics, Charger status monitoring, Wireless firmware updates, Mobile device management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AHD free?

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

### Is Abyss free?

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

### Which has better reviews, AHD or Abyss?

Abyss is rated higher. AHD averages 3.0 out of 5 from 2 ratings, while Abyss averages 4.0 from 3 ratings.

### Do AHD or Abyss have ads?

Neither AHD nor Abyss shows ads.

### Which is updated more often, AHD or Abyss?

AHD ships an update every 12 months, and Abyss every 2 months. Most recently, AHD was updated on November 1, 2026 and Abyss on November 4, 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.*