# BOC Remaining Time Estimator — For BOC Healthcare cylinders > Estimates remaining time for BOC medical oxygen cylinders using camera and flow rate. (iPhone/iPad app by Linde GmbH.) - Source: https://appshunter.io/ios/app/boc-remaining-time-estimator/id1460690740 (this page in markdown: same URL + `.md`) - Developer: [Linde GmbH](https://appshunter.io/developer/657403417) - Category: Medical, Utilities - Price: Free - Rating: 4.50/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 12.1 · 31 MB - Languages: American English - Released: 2019-05-03 - Data updated: 2026-10-15 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/boc-remaining-time-estimator/id1460690740/reviews.md ## What is BOC Remaining Time Estimator? Using your phone's camera and unique elements of BOC's medical Integral Valve cylinder packages, the Remaining Time Estimator app can quickly and safely give you an estimate of when the cylinder's content will be low based on your stated flow rate. The app allows you to set a reminder when the cylinder will be low and give the cylinder a reference or "name" so you can track multiple cylinders at the same time. The app also includes the instructions for using our Integral Valve products. The app is ideal for porters, nurses, healthcare assistants and paramedics who have to move patients on oxygen and in those locations where no wall outlet oxygen is available. When you first install and run the app, there's a tutorial to help explain how to use it. It can be accessed at any time from Menu > Help > Help with the app. The app is compatible with the following UK & Ireland BOC Integral Valve products: Oxygen: CD, ZD, HX, ZX, DD, ZH. Heliox: HX. Not compatible with Entonox packages, other medical or non-medical valves. The app is an assistive aid, it is not an alarm and does not negate the user’s responsibility to ensure correct oxygenation of the patient. Always check the content gauge on the cylinder. ## Key features - Estimate cylinder remaining time - Set low-level reminders - Name and track multiple cylinders - View Integral Valve product instructions - Tutorial for app usage ## Is BOC Remaining Time Estimator safe? Not enough ratings yet to assess BOC Remaining Time Estimator. ## Is BOC Remaining Time Estimator legit? BOC Remaining Time Estimator appears to be a legitimate app. The AppsHunter Legitimacy Score for BOC Remaining Time Estimator is 90 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/boc-remaining-time-estimator/id1460690740/reviews.md ### 4/5 — Boc review *2024-09-04* I think this app is brilliant and so helpful for my daughter who is on 24/7 oxygen but I only have one suggestion, I love having all the tanks on my app but could you please add a way to pause the timer as only 1 tank gets used at a time so when we’re using the upstairs tank the downstairs one is off and I’d like to be able to pause the timer when the tanks are not in use as well as when we’re out and using the travel tanks I’d like to know a rough time remaining ## Frequently asked questions about BOC Remaining Time Estimator ### What BOC cylinders is the Remaining Time Estimator compatible with? The app is compatible with UK & Ireland BOC Integral Valve products including Oxygen: CD, ZD, HX, ZX, DD, ZH, and Heliox: HX. It is not compatible with Entonox packages or other medical/non-medical valves. ### How accurate is the BOC Remaining Time Estimator? The app provides an estimate of remaining cylinder content based on your stated flow rate and camera input. It is an assistive aid and does not negate the user's responsibility to ensure correct oxygenation. Always check the content gauge on the cylinder. ### Can I track multiple cylinders with the BOC Remaining Time Estimator? Yes, you can give each cylinder a reference or 'name' within the app, allowing you to track multiple cylinders simultaneously. ### Does the BOC Remaining Time Estimator have ads? No, the BOC Remaining Time Estimator does not contain advertisements. ### What devices support the BOC Remaining Time Estimator? The app is supported on iPhone, iPad, and iPod devices. ### How often is the BOC Remaining Time Estimator updated? The app was last updated on December 2nd, 2025, indicating ongoing development and maintenance by the developer, Linde GmbH. ### What is the age rating for the BOC Remaining Time Estimator? The app has an age rating of 4+, making it suitable for a wide range of users. ### Where can I find instructions for using the BOC Remaining Time Estimator? You can access the app's tutorial at any time by navigating to Menu > Help > Help with the app. ## Version history (last 4 releases) ### 2.1.2 — 2025-12-02 Bug fixes and improvements ### 2.1.1 — 2024-09-12 Bug fixes & minor improvements. ### 2.1.0 — 2023-06-22 New in version 2.1: - Gas Calculator: Add up the content of multiple cylinders to get an estimate of remaining gas by litres & time at a set flow rate. - Set a custom flow rate: You can now type in any flow rate to get a remaining time estimate, not just the pre-selectable flows of the valve. - Get a low content reminder, even when your device is on silent. - Improved gauge scanning for newer gauge designs recently introduced. - Bug fixes & performance improvements. ### 1.0 — 2019-05-03 No release notes. ## More apps by Linde GmbH - [Gas Converter](https://appshunter.io/ios/app/gas-converter/id681227665) - [Linde Healthcare Virtual World](https://appshunter.io/ios/app/linde-healthcare-virtual-world/id739688760) - [Linde Virtual Cryo](https://appshunter.io/ios/app/linde-virtual-cryo/id803840737) - [Linde eShop](https://appshunter.io/ios/app/linde-eshop/id1031831792) - [Afrox Shop](https://appshunter.io/ios/app/afrox-shop/id1046856113) - [Linde Data Booklet](https://appshunter.io/ios/app/linde-data-booklet/id1094377291) All apps by Linde GmbH: https://appshunter.io/developer/657403417 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-15.*