# WetRuler vs Deep Tools

The clearest difference is in-app purchases: WetRuler at none against Deep Tools's 3. WetRuler also leads on rating (5.0 vs 4.6). Deep Tools's advantage is update cadence (every 6 weeks vs every 43 months) and ratings volume (93 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

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

WetRuler holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Deep Tools has 93 ratings behind it against 1, so its average is the more settled of the two.

WetRuler ships an update every 43 months, Deep Tools every 6 weeks. The most recent releases landed on June 20, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | WetRuler | Deep Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wetruler/id1445381420/reviews)** | [4.6 (93 ratings)](https://appshunter.io/ios/app/deep-tools/id1476093876/reviews) |
| Number of ratings | 1 | **93** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 6 weeks** |
| Monetization | **Free** | Freemium |
| Size | 1 MB | 12 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robert Werner](https://appshunter.io/developer/1445381419) | [Deep Blue d.o.o.](https://appshunter.io/developer/1476093875) |

## What reviewers say

### WetRuler

[App page](https://appshunter.io/ios/app/wetruler/id1445381420)

This augmented reality application measures and weighs fish using your device's camera. Simply place your catch on a surface, select the fish type, and the app will estimate its length and approximate weight. It also records a photo of your catch with the measurements displayed.

**Highlights:** AR measurement grid, Fish type selection, Approximate weight and length calculation, Records catch photos with data, Works in water for catch and release, Supports large fish up to 10 feet

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is WetRuler free?

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

### Is Deep Tools free?

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

### Which has better reviews, WetRuler or Deep Tools?

WetRuler is rated higher. WetRuler averages 5.0 out of 5 from 1 ratings, while Deep Tools averages 4.6 from 93 ratings.

### Do WetRuler or Deep Tools have ads?

Neither WetRuler nor Deep Tools shows ads.

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

WetRuler ships an update every 43 months, and Deep Tools every 6 weeks. Most recently, WetRuler was updated on June 20, 2026 and Deep Tools on September 15, 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.*