Moving money from one rail to another in East Africa traditionally takes multiple hops — withdraw, convert, send, deposit — with a fee at each hop. Sharet collapses that into one payment routed through one ledger. Because the ledger carries the internal movement for free, the only fee is the external rail at the destination.
The ledger is the cheapest place for money to move. Everything else is a rail.
— Sharet engineering principle
In practice, this makes cross-rail payments in East Africa cheaper by a wide margin — often 40 to 60 percent less than routing through traditional intermediary paths. The savings come from removing hops, not from squeezing margins.