r/HomeKit • u/Conscious_Wind5045 • 1h ago
News LoopJuice, free Apple Home battery monitor, available in Europe too
Hey everyone! I’m a developer from the Netherlands and was recently between jobs. I wanted to use some of my free time to learn Swift, so I decided to build something useful for my own home.
Another developer had recently released a similar app, but it wasn’t available in Europe because of the requirements around publishing trader contact details. I also looked at HomeBatteries, but personally felt it was too expensive for what it offered.
So I started building LoopJuice.
I wanted to see which batteries needed attention, but also remember what batteries each accessory takes and when I last replaced them.
LoopJuice shows your accessories in a list or grid, grouped by room. It records battery history and estimates roughly when a battery might run out. You can save battery types, quantities, replacement and recharge dates, and compare multiple battery cycles. I included some options for custom widgets and added some Apple Watch functionality.
There’s optional iCloud sync to combine history across iPhone and iPad, plus an Apple Watch app and widgets. It works with accessories that expose battery information through HomeKit, and the predictions are approximate.
Everything is free. Building it filled my free time and helped me learn Swift. I have no plans to charge for it in the future either. It’s just a fun hobby project I wanted to share.
I’m planning to buy an iPhone Duo once it goes on sale and add support for it, and support HomeView once it becomes available in Europe.
If you try it, I’d love to hear what you think and what you’re missing! I have more free time this month to include any requests!