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/
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.
Fantastic software
JoJoMagicTime
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.
Vague value proposition
Andy Rock
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.
Don’t Bother...sneaky expensive
anon_reviewer
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.
Subscription bug fixed.
Version 5.11
The developer, Deep Blue d.o.o., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Deep Blue d.o.o.
Size
14.1 MB
Category
Sports
Compatibility
Requires iOS 17.0 or later.
iPhone Requires iOS 17.0 or later.
iPad Requires iPadOS 17.0 or later.
Mac Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
