Comparison

Deep Tools vs EANx Assistant

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

Head to head
About

Deep Tools

This app is a comprehensive tool for divers, offering planning, logging, and calculation features. It supports recreational, technical, and rebreather diving with advanced decompression planning and gas blending capabilities. Easily import dive data and manage your underwater adventures.

Highlights
  • Decompression planning (Bühlmann ZH-L16)
  • Dive log with Shearwater import
  • Nitrox and Trimix gas blending
  • Multiple dive calculators
  • Metric and imperial units
  • Multi-level and repetitive dive planning
Features
Read full description

The complete dive planner, dive log and dive calculator app for recreational, technical and rebreather divers. Plan decompression dives with Bühlmann ZH-L16 and gradient factors, import your dives from a Shearwater dive computer, blend nitrox and trimix, and get quick answers to the questions you ask before every dive. All in one app, for open circuit (OC) and CCR. Whether you are in dive training, planning complex deco dives, or logging your underwater adventures, Deep Tools gives you reliable results you can trust. DIVE CALCULATORS - 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 nitrox mix for depth - Best trimix mix for depth - Gas consumption (SAC / RMV) and gas density - Lift bag calculator DECO PLANNER * Plan complex dives with confidence on open circuit (OC) or rebreather (CCR): - Bühlmann ZH-L16B and ZH-L16C with gradient factors (GF) - Multi-level and repetitive dive planning - Lost gas plans and CCR bailout planning, with custom bailout points - Gas consumption, CNS and OTU for every dive - Dive profile, run time table, tissue pressure graph and slate view - Share dive plans as a file, text, slate or image DIVE LOG * - Import dives from Shearwater dive computers (Petrel, Perdix, NERD, Teric and more) - Full dive profile with ppO₂, CNS, TTS, SAC and gas density - Dive sites with name, coordinates, map and custom tags - Automatically merge dives with short surface intervals - Share dives with your buddies - Local backup and easy transfer to a new device GAS BLENDER * Mix accurate nitrox and trimix: - Partial pressure blending to the desired gas - Blending with a top-off gas - Continuous flow blending - Gas cost estimate MORE - Metric and imperial units - Altitude diving and water type (salt, fresh, EN13319) - Custom tank / cylinder database - Available in 11 languages * The deco planner, dive log and gas blender are included in Deep Tools Premium. Try them free during the free trial. Deep Tools is a planning aid. It does not replace proper dive training or certification. Special thanks to V. Paul Gordon, Serge Nelissen and Michael Heus for extensive testing and valuable contributions. Terms of Use: https://www.deepblue.si/privacy/terms-of-service.php Privacy Policy: https://www.deepblue.si/privacy/

About

EANx Assistant

Features
Read full description

EANx Assistant is a nitrox diving calculation tool designed for recreational divers and diving instructors. Whether you are a professional diving instructor or a nitrox diving enthusiast, this application can help you perform various nitrox diving-related calculations quickly and accurately. 【Main Features】 • Maximum diving depth calculation: Automatically calculates safe diving depth limits based on oxygen content percentage • Optimal nitrox ratio calculation: Provides the best gas mixture ratio for specified depths • Equivalent Air Depth calculation: Converts nitrox diving to equivalent air diving depth • Oxygen partial pressure calculation: Real-time monitoring of oxygen partial pressure values at different depths and gas mixtures • Adjustable maximum PPO₂ value: Supports customized safety thresholds, default is 1.4 【Usage Scenarios】 • Pre-dive planning: Quickly determine the optimal gas mixture for your diving plan • Teaching aid: Diving instructors can use it for training courses and on-site teaching 【Thoughtful Design】 • Clean and intuitive blue interface, reducing recognition pressure • Bilingual support in Chinese and English, meeting the needs of international divers • Intuitive slider controls for quick parameter adjustments EANx Assistant makes complex nitrox diving calculations simple. No internet connection required, perform calculations anytime, anywhere - an indispensable digital tool in your diving equipment. Note: This application is only intended as an auxiliary calculation tool and should not replace professional dive training and certification. Always follow safe diving rules and receive appropriate training before using nitrox gas mixtures.

Screenshots

Deep Tools4 screens
EANx Assistant4 screens

Verdict

The call

The clearest difference is update cadence: EANx Assistant at every 2 days against Deep Tools's every 2 months. EANx Assistant also leads on iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support 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 $7.99 per month and EANx Assistant sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Deep Tools ships an update every 2 months, EANx Assistant every 2 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Deep Tools versus EANx Assistant: the parameters behind the verdict, then further details
ParameterDeep ToolsEANx Assistant
PriceFreeFree
Rating4.6 (93 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings93 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size13 MB1 MB
Age rating4+4+
DeveloperDeep Blue d.o.o.嘉亮 曾

In-app purchases

3 purchases

Deep Tools

Subscriptions2
  • Subscription Monthly$7.991 Month
  • Subscription Yearly3 Days trial$22.991 Year
One-time1
  • Lifetime Subscription$49.99
3 purchases

EANx Assistant

One-time3
  • Small Coffee$0.99
  • Medium Coffee$1.99
  • Large Coffee$2.99

Questions

Is Deep Tools free?
Deep Tools is free to download, with in-app purchases available.
Is EANx Assistant free?
EANx Assistant is free to download, with in-app purchases available.
Do Deep Tools or EANx Assistant have ads?
Neither Deep Tools nor EANx Assistant shows ads.
Which is updated more often, Deep Tools or EANx Assistant?
Deep Tools ships an update every 2 months, and EANx Assistant every 2 days. Most recently, Deep Tools was updated on November 3, 2026 and EANx Assistant on October 25, 2026.

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