# IDF vs Dive Shearwater

The clearest difference is rating: Dive Shearwater at 1.6 against IDF's 1.0. Dive Shearwater also leads on ratings volume (47 vs 1). IDF's advantage is iOS requirement (13.4 vs 15.1). On price, update cadence, 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.

Dive Shearwater holds the better App Store score, 1.6 against 1.0. That said, the two scores are not equally well evidenced: Dive Shearwater has 47 ratings behind it against 1, so its average is the more settled of the two.

IDF ships an update every 6 weeks, Dive Shearwater monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | IDF | Dive Shearwater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/idf/id6740090312/reviews) | **[1.6 (47 ratings)](https://appshunter.io/ios/app/dive-shearwater/id6751863035/reviews)** |
| Number of ratings | 1 | **47** |
| Positive reviews | — | 7.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | — | Free |
| Size | 8 MB | 103 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [International Diving Federation sp. z o.o.](https://appshunter.io/developer/1788336335) | [Shearwater Research](https://appshunter.io/developer/1164234361) |

## What reviewers say

### IDF

[App page](https://appshunter.io/ios/app/idf/id6740090312)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dive Shearwater

[App page](https://appshunter.io/ios/app/dive-shearwater/id6751863035)

This app serves as a digital dive log, allowing divers to meticulously record their underwater adventures. It features interactive maps to track explored locations and integrates with specific hardware to automatically capture dive site coordinates. Designed for simplicity and reliability, it helps divers organize records and plan future dives.

**Highlights:** Interactive dive maps, Automatic dive site coordinate capture, Streamlined user experience, Dive history tracking, Gear setup refinement, Dive planning tools

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

**In-app purchases:** none


## Frequently asked questions

### Is IDF free?

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

### Is Dive Shearwater free?

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

### Which has better reviews, IDF or Dive Shearwater?

Dive Shearwater is rated higher. IDF averages 1.0 out of 5 from 1 ratings, while Dive Shearwater averages 1.6 from 47 ratings.

### Do IDF or Dive Shearwater have ads?

Neither IDF nor Dive Shearwater shows ads.

### Which is updated more often, IDF or Dive Shearwater?

IDF ships an update every 6 weeks, and Dive Shearwater monthly. Most recently, IDF was updated on October 24, 2026 and Dive Shearwater on October 24, 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.*