Pro features — coming soon

How To Calculate stays free for everyone. Pro will add power-user tools for people who run the same scenarios often:

Available now (beta): 10 blockchain engine calculators (config-driven save + print) and top 10 finance calculators (snapshot save + print + JSON backup).
Optional webhook cloud sync when you configure push/pull URLs (see below).
Share read-only scenario links with colleagues

Cloud sync (optional)

Save a private sync key and push/pull scenarios through your webhook (Make, n8n, Supabase edge, etc.). Without webhooks, use export/import backup on each calculator.

Configure PRO_SCENARIOS_PUSH_WEBHOOK and PRO_SCENARIOS_PULL_WEBHOOK in production (see .env.example).

Join the waitlist

No payment today—we will email when a beta is ready. Tell us which calculators you use most.

Email waitlist request

Continue using free calculators — nothing changes until you opt in to Pro.