First off, this looks like a nice project. So please take this as constructive criticism: 1. This really should have screenshots published. Especially when comparing with something polished like AirDrop, the UX is important. You even call this out as one of the features, so it's really odd not seeing the screenshots to support that statement. 2. "Uses state-of-the-art cryptography algorithm" isn't very reassuring. It…
App seems to be using this: https://libsodium.gitbook.io/doc/secret-key_cryptography/aea... I have little experience with cryptography, and have no idea whether it is a good choice or not. If it is, how would you convince regular people that the state of the art “something something sodium chachacha” crypto algorithm in the app is the best for them? It might be better not to mention the name. Some stats would be nice…
Personally, I'd make a separate page with more details for the subset of folks who are interested. It doesn't need to be on the main page, but at least something to reassure technical users that the project hasn't rolled it's own DIY crypto would help. :)
(And yes, libsodium is a great choice.)