Best NASDS alternatives: apps like NASDS

10+ similar apps compared and reviewed

4.3 avg rating
9 free apps
Updated November 2026

NASDS is great, but it's not the only option. Explore 10+ 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

Trimix/Nitrox/blending & more
Editor's Choice
⚽ Sports
3.0(2 ratings)
$2.99
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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.

Dive Kit: Deco Planner & Tools#2

Dive Kit: Deco Planner & Tools by RONNY MAJANI

Trimix, CCR & nitrox planning
Strong Contender
⚽ Sports
5.0(2 ratings)
FreeIn-App Purchases
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This app provides comprehensive dive planning tools for various gas mixes, including trimix and CCR dives. It offers a suite of free utilities for gas analysis, usage, and buoyancy calculations, alongside educational content and a certification wallet. The premium version unlocks advanced planning features for complex dives.

Below: Scuba Dive Log & Sites#3

Below: Scuba Dive Log & Sites by Rustpoint, LLC

100+ dive computers via BLE
Worth Considering
⚽ Sports
5.0(4 ratings)
FreeIn-App Purchases
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Log your dives with detailed information, discover over 10,000 dive sites worldwide, and sync data from your dive computer. This app offers offline access to your dive logs and site guides, with export options for your data.

More apps like NASDS

4
Bottomtime: Dive Logbook
Bottomtime: Dive Logbook
Bottomtime: Dive Logbook
Scuba Journal, Sites & Gear
Free
⚽ Sports
(0)
5
Tauchen Magazin
Tauchen Magazin
Tauchen Magazin
by Jahr Artopé Media Gmbh & Co KG
Free
⚽ Sports
(0)
6
OSTConf
OSTConf
OSTConf
by Kai-Uwe Sattler
Free

Configure your dive computer settings and parameters wirelessly. Update date, time, custom text, gas mixes, and deco settings. Compatible with recent Bluetooth-enabled dive computers.

Read and modify settingsUpdate date and timeSet custom text
⚽ Sports
(0)
free
7
SFL Bremerhaven
SFL Bremerhaven
SFL Bremerhaven
by SFL Bremerhaven e.V.
Free
⚽ Sports
(0)
8
Scuba Trainer: for Divers
Scuba Trainer: for Divers
Scuba Trainer: for Divers
Practice dive theory & pass
Free

Prepare for your next dive by practicing real exam questions and mastering dive theory. This app offers adaptive learning, personalized study plans, and a comprehensive logbook to track your progress. It's designed to help you refresh your knowledge and feel confident before your certification or next adventure.

Nearly 400 fact-checked exam questions12 topic areas including physics, physiology, and safetyExam mode simulating real tests
⚽ Sports
(0)
freemium
9
CCRtools
CCRtools
CCRtools
by Kai-Uwe Sattler
Free
⚽ Sports
(0)
10
Tauchsportverband NRW e.V.
Tauchsportverband NRW e.V.
Tauchsportverband NRW e.V.
by Tauchsportverband Nordrhein-Westfalen e.V.
Free

This app provides information and resources for diving enthusiasts in North Rhine-Westphalia. It offers newsletters, event schedules, and details on training and further education opportunities for the local diving community.

Newsletter subscriptionsEvent schedulesTraining and further education information
⚽ Sports
(0)
free