Diving Calculator vs Active Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Active Log
This app serves as a comprehensive dive logbook for scuba and freediving enthusiasts. It allows users to track progress, plan dives, import data from dive computers and existing files, and store important documents. It also includes safety calculators and works offline.
- Dive computer data import
- Log file import (SSRF, .FIT)
- Dive planning and profile tracking
- Document and certification storage
- Offline functionality
- Safety calculators (MOD, EAD, ppO2)
- Cloud sync across devices
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Active Log is an all-in-one app for scuba diving, technical diving, freediving, swimming and conditioning. Log and analyse your dives, import dives from supported dive computers, plan recreational and technical dives, train for freediving, create swimming workouts and improve your strength, endurance and conditioning. Whether you're a recreational diver, technical diver, freediver or swimmer, Active Log brings your activities, training and progress together in one place. DIVE LOGBOOK • Log recreational and technical scuba dives • Add dive details, locations, buddies, equipment, notes and photos • View your dive history and statistics • Track your progress and personal records • Store certifications, insurance, medical documents and assessments • Keep your diving information organised in one place DIVE COMPUTER & IMPORT Download dives directly from supported dive computers, including Shearwater, Suunto, Scubapro, Apeks and more. Import existing dive data from supported formats such as Subsurface/SSRF and FIT, or export and import dives in JSON format. Spend less time entering dive information manually and more time exploring your dives. DIVE PLANNER Plan your next dive before entering the water. Create recreational dive plans and review your dive profile, depth, time, gas requirements, decompression and expected run time. Keep your dive plans together with your dive logbook so you can plan, dive and review in one app. TECHDIVE Advanced planning and calculation tools for trained technical divers: • Decompression and multi-gas dive planning • Gas requirements and reserves • Gas Analyzer • Nitrox and Trimix blending • Recommended Gas Mix and Top-up Tank • MOD, EAD, END and PPO₂ calculations Active Log gives technical divers practical tools for preparing and analysing more complex dives. FREEDIVING Freediving is more than holding your breath. Train your breath, body and mind with: • CO₂ and O₂ tables • Custom apnea training • Dry training • Stretching and mobility • Mindset and mental preparation • Training history and progress tracking Build your freediving training around breathing, relaxation, physical preparation and mental performance. SWIMMING Train smarter in the pool or open water. • Create structured swimming workouts • Organise workouts into warm-up, main sets, drills, recovery and cooldown • Train freestyle, backstroke, breaststroke, butterfly and more • Track distance, sets, intensity and rest • Record your swims • Follow your swimming progress over time Whether you're swimming for fitness, technique or performance, Active Log helps you structure your training and keep improving. CONDITIONING Improve the fitness that supports your diving, freediving and swimming. Create conditioning workouts focused on: • Strength • Endurance • Mobility • General fitness Combine water training with physical conditioning to become stronger, fitter and better prepared for your activities. TRACK YOUR PROGRESS Active Log brings your diving, freediving, swimming and training history together so you can follow your performance, statistics, goals and personal progress over time. YOUR ACTIVITIES, ANYWHERE Active Log works offline, so important information remains available at the dive site, on the boat, at the pool or while travelling. Your data can also be securely stored in the cloud and accessed across multiple devices. DIVE. FREEDIVE. SWIM. TRAIN. Log your adventures. Plan what comes next. Train with purpose. Track your progress. Active Log — your water sports, one app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Diving Calculator at none against Active Log's 4. Diving Calculator also leads on iOS requirement (12.0 vs 15.6). Active Log's advantage is update cadence (every 3 days vs weekly). 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
Both are free to download. Active Log sells 4 in-app purchases, starting at $4.99 per year. Diving Calculator asks for nothing beyond the download.
Diving Calculator ships an update weekly, Active Log every 3 days. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.
| Parameter | Diving Calculator | Active Log |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 33 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Alberto Segovia | Duong Do |
In-app purchases
Diving Calculator
No in-app purchases
Active Log
- Freediving module (yearly)7 Days trial$4.991 Year
- TechDive module (yearly)7 Days trial$4.991 Year
- Swimming module (yearly)7 Days trial$4.991 Year
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- Diving module (yearly)7 Days trial$9.991 Year
Questions
Is Diving Calculator free?
Is Active Log free?
Do Diving Calculator or Active Log have ads?
Which is updated more often, Diving Calculator or Active Log?
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