Comparison

Pro Dive vs Dive Kit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pro Dive

This app functions as a real-time dive computer, tracking depth, ascent rate, and tissue loading. It automatically logs dives with detailed profiles and offers advanced decompression calculations. Designed for both recreational and technical divers, it works offline and is optimized for Apple Watch Ultra.

Highlights
  • Real-time depth and ascent rate tracking
  • Bühlmann ZH-L16C decompression model
  • Automatic dive logging with full profile
  • Underwater compass and no-fly time indicator
  • Optimized for Apple Watch Ultra
  • Offline operation for calculations and logging
Features
Read full description

Pro Dive continuously tracks your depth, time, ascent rate and tissue loading to keep you informed throughout every dive. Real-Time Dive Computer • Certified to EN13319 — the international standard for dive instruments. • Live depth display • No-Deco Limit (NDL) • Decompression ceiling and Time-To-Surface (TTS) estimates • Gradient Factors and multi gas support (Nitrox / Trimix capable engine) • CCR support with fixed PPO2 and Bail Out modes • Ascent-rate tracking with smart averaging • Automatically detects submersion and starts logging • Underwater Compass • Indicates no fly time Decompression Model Built on the Bühlmann ZH-L16C model with gradient factors, Pro Dive continuously updates a full 16-compartment tissue model during your dive — just like a dedicated dive computer. Automatic Dive Logs Every dive is saved automatically and synced to your iPhone: • Full dive profile graph • Max depth, duration, start/end times • Min/max temperature • Location via GPS + reverse geocoding • Notes and dive-day details • All logs stored locally with optional cloud backup (if applicable) Designed for Apple Watch Ultra Pro Dive is built specifically for the Ultra’s: • Depth and water-temperature sensors • Bright always-on display • Large Action Button and crown to quickly select options underwater • Rugged dive-ready design Offline, Reliable, and Fast All calculations run entirely on the watch — no signal required. Your watch keeps logging even if the iPhone is not nearby. For Recreational and Technical Divers Whether you’re practising buoyancy in the pool, exploring a wreck, or building up to technical training, Pro Dive provides a clean, modern interface with professional-grade dive calculations behind it. Privacy Policy - https://www.tec-diver.eu/pro-dive-privacy-policy.html End User License Agreement - Privacy Policy - http://www.tec-diver.eu/easy-deco-privacy-policy.html

About

Dive Kit

This app offers advanced dive planning tools for technical divers, including decompression calculations for various gas mixes and dive profiles. It also provides a suite of free utilities for gas analysis, consumption, and dive preparation.

Highlights
  • Decompression planning for open-circuit, nitrox, trimix, and CCR
  • Gradient factors and custom stop rounding
  • Contingency dive planning
  • Gas management and reserve calculations
  • Offline functionality
  • Certification wallet
  • Free dive tools including Best Mix and Gas Specs
Features
Read full description

Dive Kit is a decompression planner for technical divers, and a set of dive tools for every diver. The Deco Planner covers open-circuit, nitrox, trimix and CCR dives on Bühlmann ZH-L16C with gradient factors. It is the only paid tool: a one-time lifetime purchase or a subscription. The other eleven tools are free, with no ads and no account. Large text for direct sun and large buttons for wet hands. Works offline. Deco Planner - Multi-level profiles, with stops between levels when the plan needs them and gas switches where the PPO₂ allows - Gradient factors, last stop, ascent rates, oxygen breaks, stop rounding (1 min, 30 s or 1 s) and PPO₂ limits per gas, all set per plan - Contingency tabs: deeper, longer, lost gas, or your own. Each shows the change in run time, TTS and CNS against the base plan - Modifiers: working and deco SRMV and a delay at depth, on the base plan or on one contingency - CCR: setpoint schedules by depth, diluent switches, dilout, and open-circuit bailout from the end of the profile, after any level, at a run time or on ascent - Gas per cylinder: remaining pressure at each stop, a reserve per cylinder, ascent pressure, and what happens when a cylinder runs dry - Warnings with the number and the limit: PPO₂, END, gas density, CNS, OTU, hypoxia, reserve - Repetitive dives, with tissue loading carried over the surface interval - Plan variants, overlaid on one graph - Share by QR code or link; anyone can open a shared plan without paying. Export the table or a slate as PDF, image or text, ready to print How the engine was checked Dive Kit's engine is an independent implementation of ZH-L16C, written from the published papers. It was cross-checked on 33 dive profiles. The method and the differences found are published at divekit.app/docs/engine/how-it-works/. Agreement shows the math matches. It does not show a plan is safe. Free Tools - Best Mix: nitrox and trimix by MOD, helium by END, with narcotic and density limits - Gas Specs: EAD, PPO₂, END and gas density, with warnings at your limits - Gas Usage: multi-level consumption, turn pressure, thirds to sixths - SAC/SRMV: your breathing rate from a real dive - Buoyancy: weighting from suit, body, gear and water, with lift and overweighting checks - Blend Planner: partial-pressure and continuous blending with real-gas corrections and expected analyzer readings - Mix Result: what a top-up or a decant gives you - Checklists: your own pre-dive routines and rebreather presets, with timers that keep running when you close the app - Cylinders, Converter, Dive Signals: 90+ illustrated, searchable signals and 35+ cylinder specifications Learning Tutorials on gas physics, decompression theory and trimix, and help on key results. Certification Wallet 25+ agencies and 190+ certifications. Add photos of your cards and show one full screen at the dive centre. Your profile holds your dive insurance details. Options - Offline, on phones and tablets - Eight languages: English, German, Turkish, Swedish, Russian, Polish, Simplified Chinese, Korean - Five styles, each in light and dark, and a choice of two app icons - Automatic backup to your own iCloud Drive or Google Drive, if you turn it on No account. Your data stays on your device unless you share a plan or turn on backup. Analytics and crash reports can be turned off in Settings. Warning and Disclaimer Dive Kit is a reference and planning aid for trained divers, and that covers all its tools. It is not a dive computer and not a substitute for training. The deco planner is for divers trained in decompression diving, and gas blending is for trained blenders. Results can be wrong, so check every result against a second source. Dive Kit is provided as is, and you use it at your own risk. Warning and disclaimer: https://divekit.app/safety/ Terms of Use: https://divekit.app/terms/ Privacy Policy: https://divekit.app/privacy-policy/ Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Pro Dive4 screens
Dive Kit4 screens

Verdict

The call

The clearest difference is review sentiment: Dive Kit at 100% against Pro Dive's 33%. Dive Kit also leads on update cadence (every 4 days vs every 6 weeks) and iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Pro Dive sells 3 in-app purchases, starting at $6.99 per month and Dive Kit sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Pro Dive ships an update every 6 weeks, Dive Kit every 4 days. The most recent releases landed on November 7, 2026 and November 11, 2026 respectively.

Scorecard3 real differences · 7 level
Pro Dive versus Dive Kit: the parameters behind the verdict, then further details
ParameterPro DiveDive Kit
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyEvery 6 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size32 MB128 MB
Age rating4+4+
DeveloperMillennium LtdRONNY MAJANI

Customer experience

Pro Dive

Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

Dive Kit

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Pro Dive

Subscriptions2
  • Pro Dive monthly$6.991 Month
  • Pro Dive anual$59.991 Year
One-time1
  • Pro Dive Lifetime$139.99
3 purchases

Dive Kit

Subscriptions1
  • Skuba Tools Pro Monthly1 Month trial$4.991 Month
One-time2
  • Tip$0.99
  • Decompression Planner$24.99

Questions

Is Pro Dive free?
Pro Dive is free to download, with in-app purchases available.
Is Dive Kit free?
Dive Kit is free to download, with in-app purchases available.
Do Pro Dive or Dive Kit have ads?
Neither Pro Dive nor Dive Kit shows ads.
Which is updated more often, Pro Dive or Dive Kit?
Pro Dive ships an update every 6 weeks, and Dive Kit every 4 days. Most recently, Pro Dive was updated on November 7, 2026 and Dive Kit on November 11, 2026.

Other comparisons