Pee & See: Apple Watch Hydration Monitor

Maker

While hiking in the woods I wanted a way to get back to trees where certain types of mushrooms were growing. Since photos have location data, I thought this would be a simple way. I'd love to hear any other creative uses people can think of!

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10yr ago

Kristofer™

CollageMo

Very very cool

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10yr ago

John Ganotis

Pee & See: Apple Watch Hydration Monitor

Maker

@kristofertm Thanks!

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10yr ago

Jordan Messina

Loot Character

I'm curious, does any service (iMessage/Gmail/etc.) strip the geotag metadata from images to protect users? I recently read how this metadata helped the FBI track down a hacker: http://digg.com/2015/when-going-...

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10yr ago

John Ganotis

Pee & See: Apple Watch Hydration Monitor

Maker

@jordanmessina This app uses EXIF data in JPEGs. Originally I tried to build it in JavaScript, but iOS actually does strip out EXIF data from images uploaded through file upload fields so it didn't work with Safari, Chrome, or any browser. (Took me a while to figure this out before finding a few threads like this: http://stackoverflow.com/questio...) So far I've tested a few different combinations of sending and receiving... Email: If it's a full size JPEG that had EXIF data originally, it seems to work. If the photo has been resized with built-in iOS resizing features, however, location doesn't seem to be preserved. iMessage: Seems to work if you add the photo from your library or paste the photo in, but last time I tested when I took a photo within the Messages app location data is NOT saved. Text: I haven't had success sending it through SMS between iPhones or from Android to iPhone. I don't know if this is actively being stripped or just getting stripped along the way with some compression. The iOS Camera app saves location data with photos when Airplane Mode is not turned on. In other apps, it seems like its up to the app to look up the location and save it with the photo. Otherwise the location doesn't seem to be saved.

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10yr ago

Braden Hamm

@gohnjanotis @jordanmessina Great info on EXIF data. Working on something that uses it so anything I can learn about it is helpful.

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10yr ago

Photo Find

Navigate to the exact spot a photo was taken

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