Oxygen Cylinder Autonomy Calc vs BlueVoid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oxygen Cylinder Autonomy Calc
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Must-have App for first aid staff and submarine divers. Calculates the autonomy of the oxygen cylinder and the air cylinder. The first aid personnel will be able to calculate the autonomy of a cylinder of oxygen through the knowledge of its capacity and oxygen supply applied to the patient. Diving enthusiasts will finally be able to easily: - CALCULATE THE LITERS OF YOUR TANK - CALCULATE AIR CONSUMPTION IN A SPECIFIC DEPTH - CALCULATE THE AUTONOMY OF YOUR TANK There is also an All In One section where you will be guided step by step through the entire calculation of your dive, following the order you will find out how many minutes of diving you will have.
BlueVoid
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BlueVoid is a modern dive log and companion app for Paralenz dive cameras (DC+ and Vaquita), designed to import, organize and relive your underwater adventures. Import dives together with the original photos and videos captured by your Paralenz camera, automatically keeping your media linked to the correct dive. Browse your dive history, review detailed dive profiles and statistics, and relive every dive exactly as it happened. Whether you're a recreational diver logging weekend dives or an experienced technical diver managing hundreds of dives, BlueVoid is built to stay fast, reliable and easy to use. Features • Companion app for Paralenz dive cameras: DC+ and Vaquita • Import dives together with original photos and videos (Wi-Fi and USB) • Browse and search your complete dive library • View detailed dive profiles and statistics • Edit dive information and metadata • Local-first design — your dive log stays on your device • Modern interface designed specifically for divers • Fix camera's time.
Screenshots
Verdict
The clearest difference is price: Oxygen Cylinder Autonomy Calc at Free against BlueVoid's $9.99. Oxygen Cylinder Autonomy Calc also leads on device support (3 vs 1) and iOS requirement (9.2 vs 17.0). BlueVoid's advantage is update cadence (every 2 days vs every 2 months) and chart position (#144 vs unranked). On ads and in-app purchases 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
Oxygen Cylinder Autonomy Calc is free to download; BlueVoid costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Oxygen Cylinder Autonomy Calc ships an update every 2 months, BlueVoid every 2 days. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.
| Parameter | Oxygen Cylinder Autonomy Calc | BlueVoid |
|---|---|---|
| Price | Free — better | $9.99 |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Best chart rank | — | #144 — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 16 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | DIGITAL IDEATORS INNOVATIONS SRL | Bonomodo Ltd |
In-app purchases
Oxygen Cylinder Autonomy Calc
No in-app purchases
BlueVoid
No in-app purchases
Questions
Is Oxygen Cylinder Autonomy Calc free?
Is BlueVoid free?
Do Oxygen Cylinder Autonomy Calc or BlueVoid have ads?
Which is updated more often, Oxygen Cylinder Autonomy Calc or BlueVoid?
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