# Abysner vs OVM

The clearest difference is price: Abysner at $2.99 against OVM's $7.99. Abysner also leads on device support (3 vs 1). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Abysner costs $2.99 and OVM $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Abysner ships an update every 2 months, OVM monthly. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Abysner | OVM |
| --- | --- | --- |
| Price | **$2.99** | $7.99 |
| 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 | **Monthly** |
| Monetization | Paid | — |
| Size | 42 MB | 2 MB |
| Requires iOS | **15.3** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Roelof Rene Smit](https://appshunter.io/developer/1762786000) | [data-project bv](https://appshunter.io/developer/1896180478) |

## 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


### OVM

[App page](https://appshunter.io/ios/app/ovm/id6766059875)

**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 OVM free?

OVM costs $7.99, with no in-app purchases.

### Do Abysner or OVM have ads?

Neither Abysner nor OVM shows ads.

### Which is updated more often, Abysner or OVM?

Abysner ships an update every 2 months, and OVM monthly. Most recently, Abysner was updated on October 5, 2026 and OVM 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.*