I am working with parachain network a few days, but I am not able to create a transaction between accounts in local node. Is this required to pay a fee for that? Is it anyway to use Parachain for free for low rate message transferring?
Speaking of peering messages exchange you could use IPFS part of Robonomics. It’s free of charge and provide online messages exchange
If you need to send transactions, i.e. interact via blockchain, you could start with
--dev node and then switch to RWS subscription token and lease Robonomics bandwidth