Nitrox Blender & Calculator vs Deep Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nitrox Blender & Calculator
This app helps divers plan their dives by calculating maximum operating depth, optimal oxygen percentage, and equivalent air depth. It also assists in gas mixing for filling tanks, determining the required mix or the resulting blend.
- Calculate MOD
- Calculate optimal oxygen percentage
- Calculate equivalent air depth
- Gas mixing calculations for tank fills
- Determine required mix for desired blend
- Calculate resulting mix from existing blend
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Your enriched air nitrox buddy on the surface! Calculate MOD (maximum operation depth), optimal oxygen percentage and equivalent air depth when planning your dive, and calculate the gas mixing when filling tanks based on what you know about - either the desired end gas or the mix you fill up with. If you want to fill your tank and end up with a certain mix, you can calculate what mix to add, or if you fill air or another mix into an existing mix, you can calculate what mix you will end up with. ——— The utility is ment as a helping hand and a supplement to - and not replacement for well-thought calculations. The developer takes no responsibility for any errors that might be in the calculations or any consequences here of. Always dive within the limits of your education and dive only with enriched air (nitrox) if you have gained the proper training in the use. Control the calculations. Always analyze your gas before you dive. Dive safely! Plan your dive - dive your plan.
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.
- 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
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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
Verdict
Nitrox Blender & Calculator and Deep Tools both sit at 4.5 stars, but that hides the real split: 100% of Nitrox Blender & Calculator's written reviews are positive against 50% of Deep Tools's. Nitrox Blender & Calculator also leads on in-app purchases (none vs 3) and iOS requirement (10.0 vs 15.6). Deep Tools's advantage is price (Free vs $0.99) and update cadence (every 6 weeks vs every 9 months). On rating, ads 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
Deep Tools is free to download; Nitrox Blender & Calculator costs $0.99 up front. Deep Tools sells 3 in-app purchases, starting at $2.99 per month. Nitrox Blender & Calculator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for Nitrox Blender & Calculator against 4.6 for Deep Tools. That said, the two scores are not equally well evidenced: Deep Tools has 93 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 100% of Nitrox Blender & Calculator's written reviews are positive against 50% of Deep Tools's.
Nitrox Blender & Calculator ships an update every 9 months, Deep Tools every 6 weeks. The most recent releases landed on September 24, 2026 and September 15, 2026 respectively.
| Parameter | Nitrox Blender & Calculator | Deep Tools |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.5 (2 ratings) | 4.6 (93 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 2 | 93 — better |
| Update frequency | Every 9 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 85 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | ComputerWare | Deep Blue d.o.o. |
Customer experience
Nitrox Blender & Calculator
Deep Tools
In-app purchases
Nitrox Blender & Calculator
No in-app purchases
Deep Tools
- Subscription Monthly$2.991 Month
- Subscription Yearly3 Days trial$17.991 Year
- Lifetime Subscription$39.99
Questions
Is Nitrox Blender & Calculator free?
Is Deep Tools free?
Which has better reviews, Nitrox Blender & Calculator or Deep Tools?
Do Nitrox Blender & Calculator or Deep Tools have ads?
Which is updated more often, Nitrox Blender & Calculator or Deep Tools?
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