# Deep Tools — Plan smarter. Dive safer. > Complete dive toolkit for planning, logging, and gas blending. (iPhone/iPad app by Deep Blue d.o.o..) - Source: https://appshunter.io/ios/app/deep-tools/id1476093876 (this page in markdown: same URL + `.md`) - Developer: [Deep Blue d.o.o.](https://appshunter.io/developer/1476093875) - Category: Utilities, Sports - Price: Free with in-app purchases - Rating: 4.60/5 from 93 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 12 MB - Languages: American English, German (Germany) - Released: 2020-01-13 - Data updated: 2026-08-12 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/deep-tools/id1476093876/reviews.md ## What is Deep Tools? 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 ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Subscription Yearly | $17.99 | per year | | Subscription Monthly | $2.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime Subscription | $39.99 | one-time | ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/deep-tools/id1476093876/reviews.md ### 1/5 — Not for beginners *2021-09-18* Definitely not a friendly app for beginners. No instructions for use! **Developer response:** Hi, could you please contact us so we could learn more and improve the app. ### 5/5 — Best dive app on the market *2021-08-04* This app has replaced all the others I use. Simple, functional, and powerful! Well worth the money. I emailed the developers a few weeks ago about a tool I would like to see added and it came out on the next update - now that is service! ### 2/5 — Don’t Bother...sneaky expensive *2021-01-23* Dive planning (the only useful part) is an in-app purchase. I don’t mind paying but If the developer isn’t honest enough to disclose costs before download i’m not sure I’d trust them to plan my dives. MultiDeco is pricy, but at least you know upfront. **Developer response:** Thank you for your comment. Could you please tell us in which step you did not know the price so we can change that. ### 3/5 — Vague value proposition *2020-11-01* What exactly is the appeal of this app, aside from a (questionably) nice graphic design? Multi deco, the gold standard in decompression planning, provides same or better functionality, more transparent and flexible models (most important), and it is less expensive in the long run. The developers of this app have yet to convince me they have a better mousetrap. ### 5/5 — Fantastic software *2020-08-27* I didn’t understand why other tools were so well regarded. These types of tools are hard to create because they require deep knowledge of software development and technical diving. These folks nailed it. An absolute pleasure to use. ### 5/5 — A must have tool that’s intuitive. *2020-01-20* Finally a tool that’s designed for divers of the 20th century. A tool’s purpose is not only function but it’s form. The other apps fall short in form, resulting in a poor and frustrating user experience – deep tools nailed it. As a technical diver, the last thing I need is to be frustrated while planning my dives. Good job to the designers and developers of this app. Everything is where you expect it to be and works as expected too. ## Frequently asked questions about Deep Tools ### What is Deep Tools? Deep Tools is a comprehensive application designed for divers. It provides essential tools for planning dives, logging underwater experiences, and blending breathing gases, supporting various diving levels from recreational to technical. ### What dive computers can I import dives from with Deep Tools? You can import dives directly from Shearwater dive computers, including models like Petrel, Perdix, NERD, and Teric. This feature allows for seamless integration of your dive data. ### Does Deep Tools have ads? No, Deep Tools does not contain advertisements. The app is ad-free, ensuring an uninterrupted experience for users. ### How much does Deep Tools cost? The app is free to download and use. Advanced features, such as the Deco Planner and Gas Blender, are available through a subscription. Monthly subscriptions are $2.99, and yearly subscriptions are $17.99, which includes a 3-day free trial. ### What dive planning features does Deep Tools offer? Deep Tools offers advanced dive planning for both Open Circuit and Rebreather. It includes features like repetitive dive planning, Bühlmann ZH-L16B/C calculations with Gradient Factors, gas consumption, CNS, and OTU calculations, and visual dive profiles. ### Can I plan for different gas mixtures with Deep Tools? Yes, the Gas Blender feature allows you to prepare accurate breathing gas mixtures, including Trimix and Nitrox. You can mix to a desired gas or mix with a top-off gas using continuous flow blending. ### What units does Deep Tools support? Deep Tools supports both Metric and Imperial units, allowing you to adjust settings for altitude and water type according to EN13319 standards, whether in salt or fresh water. ### How often is Deep Tools updated? The app was last updated on February 13, 2026, indicating a commitment to ongoing development and maintenance. Users can expect regular improvements and feature additions. ## Version history (last 5 releases) ### 4.71 — 2026-08-06 Gas consumption fixed. ### 4.70 — 2026-08-03 Minor bug-fixes. ### 4.60 — 2026-02-13 Added support for importing UDDF and Subsurface (SSRF) dive logs. ### 4.52 — 2026-02-10 This update fixes an issue with the Next button in Blender, corrects the tank toggle in Planner, and introduces improved Z-factor calculations for more accurate gas results. ### 4.51 — 2026-02-02 We’ve squashed some bugs and improved performance to keep the app running smoothly for you. ## Apps similar to Deep Tools | App | Rating | Price | Category | | --- | --- | --- | --- | | [Propitch Grounds Manager](https://appshunter.io/ios/app/propitch-grounds-manager/id1437232280) | 5.0 (1) | Free | Utilities | | [MHD Flasher N54](https://appshunter.io/ios/app/mhd-flasher-n54/id1445162440) | 4.6 (174) | Free | Utilities | | [WetRuler](https://appshunter.io/ios/app/wetruler/id1445381420) | 5.0 (1) | Free | Utilities | | [Foos Ref](https://appshunter.io/ios/app/foos-ref/id1435342360) | 5.0 (5) | Free | Utilities | | [Bell and Light for Bike](https://appshunter.io/ios/app/bell-and-light-for-bike/id1254629720) | 1.0 (1) | Free | Utilities | | [V.DialogueF1](https://appshunter.io/ios/app/vdialoguef1/id1232109400) | 5.0 (1) | Free | Utilities | ## More apps by Deep Blue d.o.o. - [Deep Photo](https://appshunter.io/ios/app/deep-photo/id1496004164) - [BlueROV Control](https://appshunter.io/ios/app/bluerov-control/id1506726149) - [Reemind: To-Do List & Reminder](https://appshunter.io/ios/app/reemind-to-do-list-and-reminder/id1574863272) - [Brian - Studying Flashcards](https://appshunter.io/ios/app/brian-studying-flashcards/id1617529273) - [DiveIT, smart buddy](https://appshunter.io/ios/app/diveit-smart-buddy/id1617853730) All apps by Deep Blue d.o.o.: https://appshunter.io/developer/1476093875 ## Related topics [trimix tools](https://appshunter.io/ios/topics/trimix-tools) · [trimix](https://appshunter.io/ios/topics/trimix) · [dive shearwater](https://appshunter.io/ios/topics/dive-shearwater) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*