ApexDeco
AlexeyVlasov Health & Fitness
ApexDeco is an open-source dive planning calculator
- Downloads
- 437+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Sep 15
- 2026 · v1.8
Screenshots
About ApexDeco
No server, no installation, no telemetry. It generates detailed ascent schedules for trimix, nitrox, and air dives on open-circuit or closed-circuit rebreathers, using the two most widely trusted decompression models in technical diving: Bühlmann ZH-L16C with Gradient Factors and VPM-B (plus VPM-A, VPM-B/E, and VPM-B/GFS variants).
This application is an offline mathematical calculator. It does not collect, measure, or monitor any user data. It does not connect to sensors or wearable devices. All calculations are based on user-entered dive parameters.
What’s new
Version 1.8 · Updated September 15, 2026
- Added dedicated CCR bailout mix planning with a selectable Bottom Bailout Mix (BTM). - Bailout profiles now keep diluent and bailout gases clearly separate, even when gas fractions match. - Improved CCR bailout calculations: bailout gases are used only after the failure point. - Added correct bailout gas switching during ascent and cave return planning.
User reviews
finally a good free deco app. only thing left to fix is the units
Alternatives to ApexDeco
Looking for apps like ApexDeco? Here are 3 similar Android apps on Google Play. The highest rated is DiveProMe Scuba Diving Planner (4.3/5), and all 3 are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| ApexDeco | – | Free | 100+ | Sep 15, 2026 | |
| Just Calculator | – | Free | 50+ | Aug 4, 2026 | Compare |
| MINOTAUR for Cave Dive Mapping | – | Free | 100+ | Aug 4, 2026 | Compare |
| DiveProMe Scuba Diving Planner | 4.3 / 5 | Free | 10,000+ | – | Compare |
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