# Abysner vs Caveradar

The clearest difference is price: Caveradar at Free against Abysner's $2.99. Caveradar also leads on update cadence (every 4 days vs every 2 months). Abysner's advantage is rating (5.0 vs 1.0) and in-app purchases (none vs 1). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Caveradar is free to download; Abysner costs $2.99 up front. Caveradar sells 1 in-app purchase, starting at $1.99 per month. Abysner asks for nothing beyond the download.

Abysner holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Abysner ships an update every 2 months, Caveradar every 4 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Abysner | Caveradar |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/abysner/id6636477320/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/caveradar/id6761065504/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Paid | **Freemium** |
| Size | 42 MB | 43 MB |
| Requires iOS | 15.3 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Roelof Rene Smit](https://appshunter.io/developer/1762786000) | [Harald Franzen](https://appshunter.io/developer/1887593106) |

## 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


### Caveradar

[App page](https://appshunter.io/ios/app/caveradar/id6761065504)

Plan cave dives with detailed condition reports, weather context, and directions. Access key information offline and find local dive partners. Contribute reports to keep conditions updated for the community.

**Highlights:** Recent cave condition reports, Weather context for dive sites, Driving directions and access info, Offline caching of key data, Partner listings for instructors/centers, Fast, dropdown-only report contribution

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caveradar Premium | $1.99 | per month |


## Frequently asked questions

### Is Abysner free?

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

### Is Caveradar free?

Caveradar is free to download, with in-app purchases available.

### Which has better reviews, Abysner or Caveradar?

Abysner is rated higher. Abysner averages 5.0 out of 5 from 2 ratings, while Caveradar averages 1.0 from 1 ratings.

### Do Abysner or Caveradar have ads?

Neither Abysner nor Caveradar shows ads.

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

Abysner ships an update every 2 months, and Caveradar every 4 days. Most recently, Abysner was updated on October 5, 2026 and Caveradar on October 7, 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.*