A single photo tells everything. The app can "hide" any description of photo like "Seattle: the journey to west coast", etc inside a photo. The change to photo is so subtle that user cannot distinguish the difference. Another astounding feature of PicxTale is that it encodes the payment info of an object into a picture and links that infomation to Venmo. Thus you could take a photo of a sushi dish which you payed for your friend and send this photo to him/her, he could use this photo to pay you back.
PicxTale
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