Money Manager EX is free and we are all volunteer develpers.
Your donations to the team will support the expenses involved in keeping the servers running and will allow us to continue to provide the best possible service.
Buy us a coffee to if you live in U.S.A
or
Write an article about your typical user cases (feel free to publish it in MMEX homesite)
or
Record a screecast to detailed explain the coule of cool features/functionalities (feel free to publish it in MMEX youtube channel)
( PayPal will charge us some fee, sometimes, pretty high)