
Michelle Dayton
Been using this app for a few months now. It allows you to accurately calculate how much time your oxygen tank has. The timer function does not run in the background. Once you set it and proceed to do something else on your phone it stops. I put the timer amount on my phone timer and use that alarm instead. I do like that you can change the figures on the timer to see how much air you have left. If you are using a tank that is less than full, you can adjust the psi to get an accurate reading.
Some Jokers Software
September 12, 2025
With the latest version 1.1.15, the timer should run while the app is running in the background. But if you close the app the notification will not occur.

Greg Loxley
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Opens and works well on Android 13. Hasn't crashed yet. Only issue I have encountered is that if you want to use more conservative tank constants, like 0.16 for M15 D or 1.56 for M122 MM, while you can change them for the current calculation/screen, if you change to a different tank size and back, it doesn't save the value you changed. Maybe add the option to save user constants and a "Reset to default" button/option in case users mess up.

Rick F
Downloaded & installed app. App won't open. Just get a notice saying app has a bug & need to clear cache. Done that numerous times, no change. Uninstalled & Downloaded again. Same thing. Uninstalled again.
3 people found this review helpful
Some Jokers Software
September 12, 2025
Sorry that it took so long to fix this
issue. It should be working with this
latest release 1.1.15.