Propr vs SizeProp
Propr has the cheaper entry ($25 vs $580). SizeProp offers the higher max profit split (95%). Propr trades on Hyperliquid (simulated accounts; A-book trades routed to Hyperliquid, B-book internal); SizeProp on Own platform (simulated; order-book data from Hyperliquid, Trade.xyz, Bybit).
