We checked 20 prop firms on their own pages for what no Volumetrica roundup says: which Volumetrica seat the firm hands you. That means the route (a Volumetrica account on dxFeed, or Deepchart over Rithmic), the package (included, free version, or nothing named) and whether Volumetrica lasts to the funded account. Only three firms say the platform is free: Halcyon Trader Funding, Phidias and Alpha Futures. Everyone else leaves you to buy Deepchart, whose cheapest Orderflow bundle is $45 a month billed $540 a year, because the 1-month plans showed Coming Soon on October 5, 2026. Eleven 50K products pass, ranked on Volumetrica cost per $1,000 of loss room (list price, activation, required fees and one Deepchart month unless supplied, divided by the overall loss floor). Halcyon Prime 50K is cheapest at $38.50, then Atlas Futures Standard 50K ($73.60, not for US residents) and Blue Guardian Futures Reserve 50K ($86.50, CME data included). AquaFutures, GOAT Funded Futures, MyFundedFutures, BluSky (the only firm stating Volumetrica at every stage including live), Phidias, Traders Launch and Apex ($382.00) follow, and Tradeify allows Deepchart only through a general any-compatible-platform rule. Alpha Futures supplies a free OrderFlow package but carries a serious warning while its payout queue is open, Futures Elite and The Trading Pit name it only for the evaluation, and TradeDay, Lucid Trading and four forex firms are grouped with Volumetrica but do not sell it.