Keep Warranty

really neat actually, i can certainly see something similar to this on the steem blockchain, maybe you can expand it to use NFT's in some way using steem engine! go buidl it! :)

Keep Warranty is an app that saves your purchase slips and warranties, reminding you when they’re about to expire. You can store your warranties by category, making it easier to organize and find them. The download is completely free and you don’t have to pay to use any of the app’s functionalities.