Bïrch Spend-Tier Ladder

Bïrch's calculator prices plans against a $10K monthly ad spend baseline: Essential at $49/mo ($45 annual), Pro at $99/mo ($91 annual), with the Hub tier scaling by event volume. That structure gives agencies a clean ladder for pricing client work. Map each client's monthly spend to the plan that covers it, then set the retainer above the combined tool cost plus delivery hours. A local retailer spending under $10K fits Essential inside the $670/mo Bïrch Local Ad Starter, leaving room for 8 hours of setup and 4 hours monthly. A DTC client pushing $40K+ belongs on Pro or Hub, where nested rules and the Launcher earn their keep, and the retainer must absorb event-volume overages before margin erodes. The ladder forces a spend check at contract signing, so agencies never sell a $670 retainer against a client whose Bïrch bill climbs past it.