Scenario calculator, not a carrier quote. It assumes each paid member has one conventional U.S. number; app-to-app accounts require none. Edit the assumptions to stress-test a plan. Rates are indicative and exclude taxes, legal/compliance, marketing, fraud loss and engineering.
Based on published starting Telnyx rates: graduated U.S. number rentals ($1 first 50, $0.79 next 200, $0.50 next 750, $0.39 next 4,000, then $0.25), SMS enablement $0.10/line/mo, voice $0.005 outbound and $0.0032 inbound per minute, SMS $0.004/part each way plus carrier passthrough. E911 cost is modeled at the listed $1.50/line optional feature price; actual regulatory solution/cost can differ. Illustrative payment fees and overhead are modeling assumptions. Sources: numbers, messaging, voice. A2P/10DLC charges and setup fees are excluded. User messaging classifications need carrier approval. No guaranteed profit.