Comparison

MaxOpDepth vs Pro Dive

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

Head to head
About

MaxOpDepth

Features
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This provides a simple graphical tool for scuba divers calculating maximum operating depth. It provides both iphone and Apple Watch versions. It's important to remember that while scuba diving, it is always recommended to double check your calculations with reference to the relevant diver tables. While this app may prove useful, it's no substitute for using your own brain and being fully aware of the dangers of scuba diving. Enjoy !

About

Pro Dive

Features
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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

Screenshots

MaxOpDepth2 screens
Pro Dive4 screens

Verdict

The call

The clearest difference is in-app purchases: MaxOpDepth at none against Pro Dive's 3. MaxOpDepth also leads on iOS requirement (13.0 vs 18.0). Pro Dive's advantage is update cadence (every 5 weeks vs every 16 months). On price, ads and device support 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. MaxOpDepth asks for nothing beyond the download.

UpkeepUpdate frequency

MaxOpDepth ships an update every 16 months, Pro Dive every 5 weeks. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 3 level
MaxOpDepth versus Pro Dive: the parameters behind the verdict, then further details
ParameterMaxOpDepthPro Dive
PriceFreeFree
Update frequencyEvery 16 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS13.0 — better18.0
Further details — not scored
Size1 MB32 MB
Age rating4+4+
DeveloperJason Klug-HorsnellMillennium Ltd

In-app purchases

None

MaxOpDepth

No 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

Questions

Is MaxOpDepth free?
MaxOpDepth is free to download, with no in-app purchases.
Is Pro Dive free?
Pro Dive is free to download, with in-app purchases available.
Do MaxOpDepth or Pro Dive have ads?
Neither MaxOpDepth nor Pro Dive shows ads.
Which is updated more often, MaxOpDepth or Pro Dive?
MaxOpDepth ships an update every 16 months, and Pro Dive every 5 weeks. Most recently, MaxOpDepth was updated on October 2, 2026 and Pro Dive on September 29, 2026.

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