I have recently released a side project I was working on for quite some time.
https://fabristic.com is an app where you can create t-shirt fully filled with Instagram posts.
In average it takes ~100 photos to fill one side of a t-shirt (but it will also work with less photos). T-shirt creation is quite simple - you can only select sorting method for each, sort by: likes, comments or publish date.
We are about to add 'best 9' t-shirts where only 9 most liked posts are shown and probably other products as well.
Any feedback appreciated!
For those interested in tech details - iOS (Swift + Rx), React (+mobx), NodeJs, Serverless AWS, MySQL. Feel free to ask any questions, I will be more that happy to answer.