# Deep Tools vs MyFathom

The clearest difference is in-app purchases: MyFathom at none against Deep Tools's 3. MyFathom also leads on iOS requirement (11.0 vs 15.6). Deep Tools's advantage is update cadence (every 6 weeks vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Deep Tools sells 3 in-app purchases, starting at $2.99 per month. MyFathom asks for nothing beyond the download.

Deep Tools ships an update every 6 weeks, MyFathom every 13 months. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Deep Tools | MyFathom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (93 ratings)](https://appshunter.io/ios/app/deep-tools/id1476093876/reviews)** | — |
| Number of ratings | **93** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 13 months |
| Monetization | Freemium | — |
| Size | 12 MB | 35 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Deep Blue d.o.o.](https://appshunter.io/developer/1476093875) | [FATHOM Dive Systems, LLC](https://appshunter.io/developer/1707099627) |

## What reviewers say

### Deep Tools

[App page](https://appshunter.io/ios/app/deep-tools/id1476093876)

This comprehensive dive toolkit helps recreational, advanced, and technical divers plan dives, log underwater adventures, and blend gases. It offers advanced planning tools, dive computer import, and essential calculations for safe and efficient diving.

**Highlights:** Advanced Deco Planner, Dive Log with Shearwater import, Gas Blender for Trimix/Nitrox, Maximum Operating Depth (MOD) calculator, No Decompression Limit (NDL) tracking, Metric and Imperial units

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription Monthly | $2.99 | per month |
| Subscription Yearly | $17.99 | per year |
| Lifetime Subscription | $39.99 | one-time |


### MyFathom

[App page](https://appshunter.io/ios/app/myfathom/id6466220916)

**In-app purchases:** none


## Frequently asked questions

### Is Deep Tools free?

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

### Is MyFathom free?

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

### Do Deep Tools or MyFathom have ads?

Neither Deep Tools nor MyFathom shows ads.

### Which is updated more often, Deep Tools or MyFathom?

Deep Tools ships an update every 6 weeks, and MyFathom every 13 months. Most recently, Deep Tools was updated on September 15, 2026 and MyFathom on September 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.*