Comparison

Diving Calculator vs Dive Toolbox

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

Head to head
About

Diving Calculator

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Diving Calculator is an app designed for divers of all levels who seek to simplify the necessary calculations for a safe and efficient dive. The app includes several tools that allow users to calculate air consumption, determine the maximum dive depth without needing to make decompression stops, and ensure they have all the necessary equipment for their underwater adventure. On the main screen, the Diving Calculator allows users to access three main features: Dive Time Calculator: This tool allows the diver to input data such as air tank capacity, initial pressure, and depth to calculate how many liters of air will be consumed during the dive and how many bars the tank should have before diving. Decompression Stop Calculator: Based on the depth and dive time, the app simulates the behavior of a dive computer, providing the user with the necessary information to know how long they can stay at a given depth without making decompression stops. Equipment Checklist: The app includes a complete checklist with all the essential gear for a safe dive. From the regulator to the wetsuit, users can ensure they don't forget any equipment before getting into the water. The design of the Diving Calculator is visually appealing, using blue tones that evoke the underwater environment. The interface is intuitive, allowing both novice and experienced divers to use the app without complications. This tool is an indispensable companion for planning safe dives, allowing users to focus on enjoying their underwater experience, knowing they have performed all the key calculations accurately. Diving Calculator is an essential tool for any diving enthusiast who wants to ensure their safety underwater, optimizing air consumption and minimizing risks during the dive.

About

Dive Toolbox

Features
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DiveToolbox — Professional dive planning and gas calculation tools for recreational and technical divers. DECOMPRESSION DIVE PLANNER Plan single-level and multi-level dives using the Bühlmann ZH-L16C algorithm with configurable gradient factors. Get detailed ascent profiles, gas switch schedules, and comprehensive safety analysis including CNS, OTU, gas density, and END monitoring. GAS BLENDING CALCULATOR Step-by-step fill instructions for Nitrox and Trimix blending. Supports partial pressure and continuous flow methods with real-time MOD calculations. MOD / EAD / END CALCULATOR Instantly calculate Maximum Operating Depth, Equivalent Air Depth, and Equivalent Narcotic Depth for any gas mix. GRADIENT FACTORS EXPLORER Visualize how GF Low and GF High affect no-decompression limits and decompression schedules. SAC RATE CALCULATOR Calculate your Surface Air Consumption rate from dive data to improve gas planning accuracy. ROCK BOTTOM CALCULATOR Determine minimum gas reserves for safe ascent, including emergency scenarios with configurable safety margins. SUCCESSIVE DIVE PLANNER Plan repetitive dives accounting for residual nitrogen and helium tissue loading from previous dives. UNIT CONVERSIONS Convert between metric and imperial units for depth, pressure, volume, and temperature. KEY FEATURES • Multi-gas support with automatic deco gas switching • Save and organize dive plans in folders • Save tank presets for quick planning • Share plans via link or QR code • Export plans as PDF • Customizable diver profile (GF, SAC, PPO2, speeds) • Dark and light themes • Available in 7 languages: English, French, German, Spanish, Italian, Polish, Russian Terms of Use: https://divetoolbox.com/en/terms Privacy Policy: https://divetoolbox.com/en/privacy

Screenshots

Diving Calculator4 screens
Dive Toolbox4 screens

Verdict

The call

The clearest difference is in-app purchases: Diving Calculator at none against Dive Toolbox's 2. Diving Calculator also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, 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. Dive Toolbox sells 2 in-app purchases, starting at $5.99 per month. Diving Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Diving Calculator ships an update weekly, Dive Toolbox every 6 days. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 4 level
Diving Calculator versus Dive Toolbox: the parameters behind the verdict, then further details
ParameterDiving CalculatorDive Toolbox
PriceFreeFree
Update frequencyWeeklyEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size33 MB33 MB
Age rating4+4+
DeveloperAlberto SegoviaOnosia

In-app purchases

None

Diving Calculator

No in-app purchases

2 purchases

Dive Toolbox

Subscriptions1
  • Premium Monthly7 Days trial$5.991 Month
One-time1
  • Premium Lifetime$24.99

Questions

Is Diving Calculator free?
Diving Calculator is free to download, with no in-app purchases.
Is Dive Toolbox free?
Dive Toolbox is free to download, with in-app purchases available.
Do Diving Calculator or Dive Toolbox have ads?
Neither Diving Calculator nor Dive Toolbox shows ads.
Which is updated more often, Diving Calculator or Dive Toolbox?
Diving Calculator ships an update weekly, and Dive Toolbox every 6 days. Most recently, Diving Calculator was updated on September 18, 2026 and Dive Toolbox on September 24, 2026.

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