Comparison

WetRuler vs Deep Tools

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WetRuler

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
Read full description

WetRuler is an AR app that measures and weighs your fish all without rulers or scales. Select the type of fish that you've caught from a list of common ones caught in Alaska. Place the fish on a horizontal surface and a AR screen grid will appear. Choose the the head to tail length and algorithms will generate length and approximate weight. --most common Alaskan fish included --records weight in pounds and length in inches --you don't have to touch the fish! --able to weigh halibut up to 10 feet in length! --records photo of your catch with weight and length displayed --works well in water for catch and release

About

Deep Tools

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
Read full description

The Complete Dive Toolkit Deep Tools is a must-have application for recreational, advanced, and technical divers. Whether you are learning to dive, planning complex decompression dives, or logging your underwater adventures, Deep Tools provides reliable tools you can trust. Import dives directly from your Shearwater dive computer, plan dives using the advanced Deco Planner, or use the app as a practical learning aid during your dive training. Tools included:
 - Maximum Operating Depth (MOD) - Oxygen Partial Pressure (ppO₂) - Equivalent Air Depth (EAD) - Equivalent Narcotic Depth (END) - Equivalent Air Density Depth (EADD) - No Decompression Limit (NDL) - Best Trimix for depth - Best Nitrox for depth - Gas consumption and density - Calculator for lifting bag Dive Log: * - Import dives from Shearwater dive computers (Petrel, Perdix, NERD, Teric, etc.) - Log dive sites with name, coordinates, and custom tags - Automatically merge dives with short surface intervals - Share logged dives with your buddies - Create local backups or migrate data to another device Advanced Dive Planner: * Plan complex dives with confidence, whether on Open Circuit (OC) or Rebreather (CCR): - Repetitive dive planning - Bühlmann ZH-L16B and ZH-L16C with Gradient Factors - Gas consumption, CNS, and OTU calculations - Visual dive profile, text plan, pressure graph, and slate view - Lost gas planning - CCR Bailout planning - Multiple point dive plan with custom bailout points - Share dive plans with friends Gas Blender: * Prepare accurate breathing gas mixtures: - Trimix and Nitrox blending - Mix to desired gas - Mix with Top-off gas - Continuous flow blending Additional Features - Metric and Imperial units - Adjustable altitude and water type (EN13319, salt, fresh) - Set your altitude - Custom tank / cylinder database * Advanced features are available with a subscription or during the free trial. Special thanks to V. Paul Gordon, Serge Nelissen and Michael Heus for extensive testing and valuable contributions! Terms of Service: http://www.deepblue.si/privacy/terms-of-service.php

Screenshots

WetRuler1 screens
Deep Tools4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
WetRuler versus Deep Tools: the parameters behind the verdict, then further details
ParameterWetRulerDeep Tools
PriceFreeFree
Rating5.0 (1 ratings) — better4.6 (93 ratings)
Positive reviews—50.0% of reviews
Number of ratings193 — better
Update frequencyEvery 43 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size1 MB12 MB
Age rating4+4+
DeveloperRobert WernerDeep Blue d.o.o.

Customer experience

WetRuler

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Deep Tools

All ratings93 ratings
Positive91.4%
Neutral2.2%
Negative6.5%
Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

In-app purchases

None

WetRuler

No in-app purchases

3 purchases

Deep Tools

Subscriptions2
  • Subscription Monthly$2.991 Month
  • Subscription Yearly3 Days trial$17.991 Year
One-time1
  • Lifetime Subscription$39.99

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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