App flags hidden animal-derived ingredients

Xiaorinrei

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Hi all — fellow label-reader here. The thing that always got me, especially travelling or buying imported stuff, is how many animal-derived ingredients hide behind names you'd never guess: carmine, gelatin, shellac, isinglass, mono- and diglycerides, certain E-numbers... and it's ten times harder when the label is in a language you can't read.

So I ended up building a little app to help with exactly this. You point your camera at any ingredients list — any language, no barcode — and it flags whether it looks vegan, calls out the questionable ingredients (with what they actually are), and also handles allergens and additives. It gives a simple A–F grade.

I'm not claiming it's perfect — it uses AI to read and interpret the label, so I always tell people to double-check anything critical. But for a quick "can I eat this?" while shopping abroad, it's been genuinely useful for me and a couple of friends.

It's free on iOS if anyone wants to try it: PureDecode App - App Store

Mostly I'd love feedback from people who read labels seriously — which hidden ingredients trip you up most, and what would make a tool like this actually trustworthy for you? Pure DecodeScreenshot 2026-08-22 at 21.42.05.png
 
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Thank you for this list! I'd known about gelatin for a long time. Jello is meat!! One can get delicious plant based "jello." And Simply Dessert has an instant jello like mix that is easy to make.

"What do you mean by "certain E-numbers"?