# Abysner vs Deco Junk

The clearest difference is update cadence: Deco Junk at weekly against Abysner's every 2 months. Abysner's advantage is price ($2.99 vs $8.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Abysner costs $2.99 and Deco Junk $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Abysner ships an update every 2 months, Deco Junk weekly. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Abysner | Deco Junk |
| --- | --- | --- |
| Price | **$2.99** | $8.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/abysner/id6636477320/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Paid | — |
| Size | 42 MB | 22 MB |
| Requires iOS | 15.3 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Roelof Rene Smit](https://appshunter.io/developer/1762786000) | [Rogier Visser](https://appshunter.io/developer/672667764) |

## What reviewers say

### Abysner

[App page](https://appshunter.io/ios/app/abysner/id6636477320)

This app is an open-source dive planning tool designed for simplicity and ease of use. It supports various gas mixes and decompression models, allowing for accurate planning of technical and recreational dives. Its intuitive interface makes it suitable for use even in challenging conditions.

**Highlights:** Buhlmann ZHL-16 A, B, C models, Multi-gas support (Air, Nitrox, Trimix, etc.), OTU and CNS tracking, Customizable environmental settings, Intuitive gas picker, Automatic contingency plans, Multi-level dive planning

**In-app purchases:** none


### Deco Junk

[App page](https://appshunter.io/ios/app/deco-junk/id6757073023)

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

**In-app purchases:** none


## Frequently asked questions

### Is Abysner free?

Abysner costs $2.99, with no in-app purchases.

### Is Deco Junk free?

Deco Junk costs $8.99, with no in-app purchases.

### Do Abysner or Deco Junk have ads?

Neither Abysner nor Deco Junk shows ads.

### Which is updated more often, Abysner or Deco Junk?

Abysner ships an update every 2 months, and Deco Junk weekly. Most recently, Abysner was updated on November 4, 2026 and Deco Junk on November 9, 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.*