This app is exactly what I've been looking for! It's called Cloud Battery. Install on each device and as long as on the same iCloud account it'll sync battery life. : MacOS

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The native Stocks App has so much room for improvement yet Apple doesn't seem to want to touch it or update it all. Simple things like custom time spans, more in-depth portfolio monitoring, custom gains/losses. I know a lot of banks have this all built into their stock web-clients, but usually the UI on those are clunky and look like they're straight out of 2008. Every time I do a quick stock search I'm so disappointed that Apple overlooks the native stock app (and I have yet to find a truly stunning 3rd party/web based one--aimed for personal/individual use).