In general I say these friends are found as we suffer together through school or summer camp. For those less-fortunate, or who fall out of friendship, I can see an app like this being useful for some. I’m more likely to make friends incidentally, doing something where the focus is not to make friends. An app whose express purpose is connecting people like this might be trying too hard? Maybe not—-dating platforms are useful, for example. I made some temporary friends during my MMORPG days, time I now consider unhealthily spent. I hope your project works and helps people find friends—-good luck!