Start with the output
List what the client receives: source artwork, prototype, production files, documentation and permitted asset licenses. Choose the creation tool that produces those deliverables without a fragile conversion step. If the client already works in a specific format, account for that constraint before buying another editor.
Keep one place for decisions
Pick a primary brief and feedback record. Link prototypes and exported assets from that record. Clearly name the current version, who approves it and what counts as a revision. More accounts can create more coordination work even when each app is individually capable.
Price the whole recurring commitment
Include seats, annual commitments and currency conversion. A yearly payment is divided by twelve here for planning; it is still an upfront cash payment. Include actual taxes in the entered price if appropriate. Avoid assuming an annual subscription is refundable or transferable without checking the vendor terms.
Read the calculation
Monthly equivalent = price × seats × exchange rate ÷ billing months (1 monthly, 12 annual). Total stack cost includes all active tools. Absorbed overhead excludes client-paid tools. Overhead per billable hour = absorbed overhead ÷ hours. Revenue proxy = hours × billing rate; software share = absorbed overhead ÷ revenue proxy. This leaves out labor, tax, equipment, insurance, payment fees, unbilled time and other operating costs. It does not calculate net margin.