Omniunit Cash

The high load on the network as a result of the explosive growth of De-fi
services and the rising price of ETH creates the problem of high
commissions, which is a significant factor limiting the mass adoption of the
network. High gas prices make mass transactions expensive for the user.
Simply put, gas is a denominated unit of ether (ETH) used to pay for
transactions in the etherium blockchain. In other words, it is the price you
pay for a transaction in a blockchain that someone else has mined

As a solution to this problem, Omniunit Cash uses "Etherium
Plasma".
The basic idea behind Etherium Plasma is to create a sidechain framework that interacts as little as possible with the
main chain (in this case, Etherium). Such a framework is
designed to work as a blockchain tree, which is organized in
such a way that many small chains can be created on top of
the main chain. These small chains are also referred to as
Plasma Chains or Small Chains.