Scuba Trainer vs Dive Toolbox

Ready for your next dive? Scuba Trainer refreshes your dive knowledge — with real exam questions, instant feedback and a learning system that keeps you coming back. PRACTICE LIKE THE REAL EXAM • Almost 400 fact-checked questions in 12 topic areas: equipment, physics & tables, physiology & equalizing, safety & navigation, emergencies & first aid, environment and more • Exam mode with 30 randomly drawn questions across core theory — just like the real test • A dedicated test for every topic, including Open Water, NITROX, night diving, deep diving and scooter (DPV) • Instant feedback after every question • Paused a test? Pick up later exactly where you left off • Fully bilingual: English and German SMART REPETITION WITH LEARNING MODE • Adaptive learning mode: missed questions come back sooner, mastered ones less often • You choose how much time you have — 3, 5 or 10 minutes • Train topics mixed or one at a time • Answer well-known questions in your head first, then reveal YOUR LEARNING PLAN • Quick onboarding: pick your goal, practice rhythm and reminder time • Personal weekly goal and reminders that match your rhythm • Daily streak with freeze days — one missed day won't instantly break your streak • 22 badges for consistency, volume and records LOGBOOK Like a dive log for your knowledge: every test and learning session with date and duration — with Premium including a question-by-question review. PREMIUM Every test is free. Scuba Trainer Premium unlocks the full evaluation, the adaptive learning mode and logbook details. Subscriptions: weekly, monthly or yearly — cancel anytime. MADE FOR YOU • Deep-ocean dark design (light or system-controlled if you prefer) • Report questions that look wrong • Request features right from the app Note: This app is a study aid and does not replace certified diving instruction, current agency materials, or medical advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://app-bis-web.de/datenschutz/

DiveToolbox — Professional dive planning and gas calculation tools for recreational and technical divers. DECOMPRESSION DIVE PLANNER Plan single-level and multi-level dives using the Bühlmann ZH-L16C algorithm with configurable gradient factors. Get detailed ascent profiles, gas switch schedules, and comprehensive safety analysis including CNS, OTU, gas density, and END monitoring. GAS BLENDING CALCULATOR Step-by-step fill instructions for Nitrox and Trimix blending. Supports partial pressure and continuous flow methods with real-time MOD calculations. MOD / EAD / END CALCULATOR Instantly calculate Maximum Operating Depth, Equivalent Air Depth, and Equivalent Narcotic Depth for any gas mix. GRADIENT FACTORS EXPLORER Visualize how GF Low and GF High affect no-decompression limits and decompression schedules. SAC RATE CALCULATOR Calculate your Surface Air Consumption rate from dive data to improve gas planning accuracy. ROCK BOTTOM CALCULATOR Determine minimum gas reserves for safe ascent, including emergency scenarios with configurable safety margins. SUCCESSIVE DIVE PLANNER Plan repetitive dives accounting for residual nitrogen and helium tissue loading from previous dives. UNIT CONVERSIONS Convert between metric and imperial units for depth, pressure, volume, and temperature. KEY FEATURES • Multi-gas support with automatic deco gas switching • Save and organize dive plans in folders • Save tank presets for quick planning • Share plans via link or QR code • Export plans as PDF • Customizable diver profile (GF, SAC, PPO2, speeds) • Dark and light themes • Available in 7 languages: English, French, German, Spanish, Italian, Polish, Russian Terms of Use: https://divetoolbox.com/en/terms Privacy Policy: https://divetoolbox.com/en/privacy