I am trying to integrate ethereum to another fin-tech app, the basic idea is to store the transaction details on swarm and then pass the hash on ethereum network. I haven't used swarm earlier and I am wondering how to analyze operational cost for the storage?
Zilch! It’s important to note that dapps will only be available via Swarm for 28 days, at which point you’ll have to renew/re-register them. That’s where the up-sell happens, I think.
I’ve read that Swarm will charge for hashes that want to go beyond the set freemium limit.