# Ratio Divelogger vs Submersion Dive Log

The clearest difference is update cadence: Submersion Dive Log at every 4 days against Ratio Divelogger's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ratio Divelogger ships an update every 9 months, Submersion Dive Log every 4 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Ratio Divelogger | Submersion Dive Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (12 ratings)](https://appshunter.io/ios/app/submersion-dive-log/id6757456915/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 90 MB | 155 MB |
| Requires iOS | **14.2** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Jiri Prajz](https://appshunter.io/developer/1857249962) | [Eric Griffin](https://appshunter.io/developer/1867101718) |

## What reviewers say

### Ratio Divelogger

[App page](https://appshunter.io/ios/app/ratio-divelogger/id6755915911)

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

**In-app purchases:** none


### Submersion Dive Log

[App page](https://appshunter.io/ios/app/submersion-dive-log/id6757456915)

This app is a comprehensive, open-source dive log for recreational and technical divers. It allows users to track unlimited dives, manage gear, analyze trends, and export data. The app offers dive computer integration, advanced profile analysis, and detailed logging for various dive types and conditions.

**Highlights:** Log unlimited dives with detailed conditions, Dive computer integration, Advanced profile analysis, Technical diving support, Gear and equipment management, Dive site database with maps, Marine life tracking

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ratio Divelogger free?

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

### Is Submersion Dive Log free?

Submersion Dive Log is free to download, with no in-app purchases.

### Do Ratio Divelogger or Submersion Dive Log have ads?

Neither Ratio Divelogger nor Submersion Dive Log shows ads.

### Which is updated more often, Ratio Divelogger or Submersion Dive Log?

Ratio Divelogger ships an update every 9 months, and Submersion Dive Log every 4 days. Most recently, Ratio Divelogger was updated on October 13, 2026 and Submersion Dive Log on October 8, 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.*