Research-grade technical dive planning

Plan smarter.
Dive safer.

Decompression planning, gas blending, dive computer sync and post-dive review in one app. Concise and conservative by design.

macOS · Windows · Linux · web

Visualise your plan.

A 45 m air dive with EAN50 and EAN80 for decompression, drawn by the same chart the app plans on. Every number here is real engine output.

air Bottom50% Deco to 1.6 (MOD 22 m)80% Deco to 1.6 (MOD 10 m)Deco ceiling
The app's own profile chart · computed by the DiveLogic engine · Buhlmann ZHL-16C · GF 40/70 · salt water
Runtime
65 min
TTS
38 min
First stop
21 m
CNS
35%
OTU
85

Review your schedule.

Plan on Buhlmann ZHL-16C with gradient factors, on the Thalmann exponential-linear algorithm in seven parameter sets, or on DiveLogic's hybrid of the two. Run one dive through each and read the schedules side by side.

Tissue compartments, ceilings, model divergence and the raw schedule are one step away.

Schedule · 45 m · 25 min bottom
PhaseDepthmetresTimeminutesRuntimeminutesGasppO₂bar
Surface
Surface
-
0
OC air
-
Descent
45
3
3
OC air
1.11
Level
45
25
28
OC air
1.16
Ascent
21
3
30
OC air
0.69
Stop
21
2
32
OC 50%
1.56
Ascent
15
2
34
OC 50%
1.34
Stop
15
1
35
OC 50%
1.26
Ascent
12
1
36
OC 50%
1.19
Stop
12
2
38
OC 50%
1.11
Ascent
9
1
39
OC 50%
1.03
Stop
9
3
42
OC 80%
1.53
Ascent
6
1
43
OC 80%
1.41
Stop
6
16
59
OC 80%
1.29
Ascent
0
6
65
OC 80%
1.05
Same dive, two models
BuhlmannZHL-16C, GF 40/70
Runtime
65 min
TTS
38 min
First stop
21 m
ThalmannXVal-He-9_023 (2.3% DCS)
Runtime
48 min
TTS
21 min
First stop
12 m

Catch the risks.

Gas density at depth, isobaric counterdiffusion on a helium switch, ppO₂ against your limits, ascent rates, scrubber life. Warnings are specific, and when limits disagree the conservative number wins.

  • ErrorGas density 7.1 g/L exceeds NEDU limit of 6.2 g/L on gas air
  • ErrorICD: gas switch 21/35 → 50% at 21m - He fraction decrease 35.0% exceeds limit 15.0%
  • ErrorGas switch to 100% at 6m: ppO₂ 1.62 > 1.6
  • WarningBetween-stop ascent rate 9 m/min exceeds recommended 6 m/min

Real engine output. The first line is the 45 m air plan above flagging its own gas density; the rest come from a deliberately aggressive test plan.

Blend your gas.

Partial-pressure blending that starts from what is already in the tank, decants from your real supply cylinders and says whether they can deliver the mix. Best mix, MOD, END and density come from the same engine as the planner.

On a rebreather: setpoints, diluents, scrubber life, and a bailout schedule from every level of the dive.

Fill procedure · 11 L stage · 20 bar of air → EAN50 at 200 bar
  1. Add 96 bar of oxygen. Tank pressure → 116 bar

    Decant from the 50 L bank at 200 bar; it ends at 179 bar.

    116bar
  2. Fill with air to 200 bar. Add 84 bar

    200bar

Sync your computer.

Pair a Shearwater Perdix, Petrel or Teric over Bluetooth from the desktop app and read the dives it holds. No cables, no export files.

Profile, gases, events and dive mode come across as the computer recorded them, ready to log and review.

Petrel 3Connecting…
  • #1424 Aug 2026
    05:15 · 1h 6m · 46.2 m
  • #1413 Aug 2026
    02:20 · 1h 31m · 78.5 m
  • #1401 Aug 2026
    21:50 · 48m 0s · 32.1 m
  • #13930 Jul 2026
    23:15 · 1h 18m · 54.0 m
  • #13830 Jul 2026
    03:35 · 45m 0s · 28.4 m
Post-dive review · Dive #138 against plan

83/ 100Adherence

PlanSample dive
0m10m20m30m0m10m20m30m40m
Mean depth deviation
1.5 m
On plan
89%
Descent vs plan
+0.6 min
Peak ascent
12 m/min
Symptom check

Example review. For education and reflection, not a diagnosis.

Review the dive.

DiveLogic lays the recorded dive over the plan and scores adherence out of 100 from named measurements: depth deviation, descent delay, ascent rate, short stops.

A symptom questionnaire covers what the computer cannot record. The evidence-based review weighs both and states its findings plainly.

Also in every account.

Ask the assistants

AI planning and blending assistants running on the same engine as every other screen. They draft; you check.

Plan as a team

Share a plan with your dive team. Each diver carries their own gas and conservatism, marks themselves ready, and gets the printable report.

Read the handbook

Every feature documented, with the real planning tools running live in the page. Open the handbook

Ready to take your planning to greater depths?

Plan your dive smarter and dive safer. Start with a free trial, shared across every platform.