Premium Feature
Plan Your Deco Stops with Confidence
Buhlmann ZHL-16C with gradient factors, multi-level profiles, contingency planning, and slate export. Run your plan, cross-check it, take it underwater.
Premium feature. $29.99 lifetime or $4.99/mo (first month free).
Algorithm & Accuracy
Under the Hood
The math and physics behind the numbers, for divers who want to know.
Buhlmann ZHL-16C
The same 16-compartment decompression model used in Shearwater and Suunto dive computers. Your plans are designed to align with hardware running the same algorithm and gradient factors.
Arbitrary-Precision Arithmetic
Built on decimal.js to minimize floating-point rounding errors. Stop times are calculated with high precision rather than relying on standard floating-point math.
Van der Waals Real Gas Model
At depth and high pressures, gases don't behave ideally. Skuba applies Van der Waals corrections so your gas calculations stay accurate where ideal gas assumptions break down.
Every Feature Tech Divers Need
Built for the workflow: plan, review, export, dive.
Multi-Level Planning
Plan complex multi-level profiles with automatic gas switching and optimized ascent schedules.
Contingency Scenarios
What if you go deeper? Stay longer? Lose a deco gas? Run worst-case scenarios and know your outs.
QR Code Sharing
Share complete dive plans with your buddy or dive team via QR code. Import plans instantly.
Gradient Factors
Full control over GF Low and GF High for conservative to aggressive profiles tailored to your experience.
Slate Export
Export your dive plan to a clean slate format for underwater reference on a wrist slate or wet notes.
Unified Gas Pool
Define your gases once and use them across all dives in a session. No redundant configuration.
Repetitive Dives
Plan back-to-back dives with tissue saturation tracking between surface intervals.
Per-Dive Settings
Override defaults for individual dives without affecting your other planned dives or global configuration.
100% Offline
Every calculation runs locally on your device. Plan dives on the boat, at the dive site, or anywhere without signal.
How Skuba Compares
See how the Deco Planner stacks up against the competition.
| Feature | Skuba | MultiDeco | Baltic |
|---|---|---|---|
| Contingency Scenarios | Full | Limited | Limited |
| Repetitive Dive Planning | Yes | Yes | Yes |
| Gradient Factors | Yes | Yes | Yes |
| Multi-Level Dives | Yes | Yes | Yes |
| Buddy Plan Sharing | Yes | No | No |
| Slate Export | Yes | No | No |
| Per-Dive Settings | Yes | No | No |
| Works Offline | Yes | Yes | Yes |
| QR Plan Sharing | Yes | No | No |
| Platform | iOS & Android | iOS & Android | iOS Only |
| Lifetime Price | $29.99 | $49 | $30 |
Comparison based on publicly available feature lists and pricing as of early 2026. Baltic is not available in the EU.
Simple, Fair Pricing
All other Skuba features are completely free.
Monthly
First month free, then $4.99/mo
Full Deco Planner access. First month free — try it on a dive trip and decide.
Get StartedLifetime
Less than 6 months of monthly
Every feature. Every update. Forever. One payment and it's yours.
Get StartedThe other 10 tools stay free. The Deco Planner is the only premium feature.
Roadmap
What's Coming Next
Active development based on real diver feedback. Here's what's next.
CCR Deco Planning
Closed-circuit rebreather decompression support with setpoint management.
2026Trimix Gas Blending
Full trimix blending support with helium fraction optimization.
2026Dive Log
Log your dives with smart suggestions based on your dive profiles and history.
2026Plan the Dive. Dive the Plan.
Download Skuba free. Try the 11 tools, and upgrade to the Deco Planner when you're ready to plan decompression dives.