~snip~
It is different changelly is centralized service, this one is dcentralized and trustless.
This is interesting. How did you do that. I mean a little technical aspect will help me to understand and may be for the visitors too.
There are smart hash time locked contracts/ Bitcoin Script for every supported network.
So the swaps are happening on-chain.
For the end user is just a one-click, packed in beautiful and simple UI which is connected to all smart contracts.
Check more here:
https://jelly.market/documents/Jelly-Swap-Ecosystem.pdf