Comparison

Pro Dive vs Diving Buddy

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

Head to head
About

Pro Dive

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

Diving Buddy

Features
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Diving Buddy is a dive log, trip planner, and calculator suite for recreational and technical divers. Plan every dive. Dive the plan. Log the story. DIVE TRIPS & SITES • Build a trip, drop in dive sites by name or coords, capture the briefing, plan each dive, log it later. • Photo-backed site library — your home quarry through your bucket list. • Emergency contacts and trip notes travel with you offline. PLAN A DIVE THE WAY YOU'D BRIEF IT • Target depth, gas mix, planned bottom time, buddy, role. • Live MOD and NDL calculations as you tune the plan. • Suggestions drawn from your historical logs at the same site. LOG WITH THE FIELDS THAT MATTER • Max depth, bottom time, water temp, visibility, deco stops. • Computed SAC from your cylinder pressures — feeds back into future plans. • Gas mix (air, nitrox, or trimix), weight, buoyancy, equipment notes. • Free-form comments for the moments worth remembering. THE CALCULATOR SUITE Built around the math you actually use at the boat: • Max Operating Depth (MOD) — every mix, every PPO2 ceiling. • No-Decompression Limit (NDL) — Bühlmann ZH-L16C, including repetitive dives. • Surface Air Consumption (SAC) — derive it from any logged dive. • Run Time / Air Balance — does your gas last the planned profile? • Nitrox blending — continuous-blend planner. • Ascent gas required, oxygen toxicity, weight + cylinder weight change. • Coordinate converter. ALWAYS FREE • Reference material: Beaufort scale, deco tables, hand signals — bundled, offline, never gated. • Data export: every trip, dive, site, and photo as a JSON archive plus a PDF logbook. Export at any time. • Read-only access to everything you've already logged — forever, with or without a subscription. OPTIONAL SUBSCRIPTION Diving Buddy offers an optional auto-renewing annual subscription at $24.99/year with a 7-day free trial, or a one-time lifetime purchase at $59.99. Subscription auto-renews unless cancelled at least 24 hours before the end of the period. Manage your subscription in your App Store account settings. Your dive logs and data remain accessible on your device whether you subscribe or not. Terms of Use (EULA): https://divingbuddyapp.com/terms Privacy Policy: https://divingbuddyapp.com/privacy

Screenshots

Pro Dive4 screens
Diving Buddy4 screens

Verdict

The call

The clearest difference is update cadence: Diving Buddy at daily against Pro Dive's every 5 weeks. Pro Dive's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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 Diving Buddy sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Pro Dive ships an update every 5 weeks, Diving Buddy daily. The most recent releases landed on September 19, 2026 and June 26, 2026 respectively.

Scorecard2 real differences · 4 level
Pro Dive versus Diving Buddy: the parameters behind the verdict, then further details
ParameterPro DiveDiving Buddy
PriceFreeFree
Update frequencyEvery 5 weeksDaily — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.018.0
Further details — not scored
Size32 MB12 MB
Age rating4+12+
DeveloperMillennium LtdHarry Richardson

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
2 purchases

Diving Buddy

Subscriptions1
  • Diving Buddy$24.991 Year
One-time1
  • Diving Buddy$59.99

Questions

Is Pro Dive free?
Pro Dive is free to download, with in-app purchases available.
Is Diving Buddy free?
Diving Buddy is free to download, with in-app purchases available.
Do Pro Dive or Diving Buddy have ads?
Neither Pro Dive nor Diving Buddy shows ads.
Which is updated more often, Pro Dive or Diving Buddy?
Pro Dive ships an update every 5 weeks, and Diving Buddy daily. Most recently, Pro Dive was updated on September 19, 2026 and Diving Buddy on June 26, 2026.

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