Best apps like NASDS

9+ similar apps compared and reviewed

3.5 avg rating
7 free apps
Updated July 2026

NASDS is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to NASDS

Gas blender toolkit#1

Gas blender toolkit by Oleg Gurevich

Blender/MOD/PSCR and more
Editor's Choice
⚽ Sports
3.0(2 ratings)
$1.99
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This comprehensive toolkit assists scuba divers in calculating and blending various gas mixtures like trimix, nitrox, and heliox. It offers features for both partial pressure and continuous blending, cost calculation, and utilizes ideal and real gas models for accuracy. Optimized for larger screens, it serves as a successor to a previous diving application.

Scuba Diving Hand Signals#3

Scuba Diving Hand Signals by Lars Behnke

Underwater communication
Worth Considering
⚽ Sports
4.0(5 ratings)
$2.99
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Master underwater communication with a comprehensive guide to over 240 scuba diving hand signals. Learn common, emergency, and wildlife signals with illustrations and animal facts. Track your progress and test your knowledge with an integrated quiz.