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Credits FAQ

Plans & credit usage — Free vs Pro, balance, and top-ups

What are credits?

Credits power the AI builder (Build) and published-app hosting & database (Run) from one balance. See Credits for the full breakdown.

Free vs Pro

  • Free10 credits/day (up to 30/mo); no top-ups
  • Pro100 credits/mo + 5/day (up to 50/mo extra); can buy 50 credits for $15

Do unused daily credits expire?

Yes. Unused Free 10/day and Pro 5/day expire at midnight UTC. Daily credits are granted when you open Mythex that day — skipped days are not granted later. Unused expired dailies do not count toward the monthly cap. The Pro 100/mo grant does not expire overnight.

What happens when I run out?

Building pauses with a nudge above chat. Free users can upgrade or wait for the daily grant; Pro users can top up. Projects and Preview stay intact. LIVE published apps pause (Fly + Neon) when the balance hits zero.

Do I get an email when credits refresh?

Yes, on Free, if you actually used yesterday’s credits. The morning email says today’s 10 are ready. We skip it if you still had most of the unused 10, if you already opened Mythex today, or if you’ve hit the 30/mo cap. Unsubscribe from the email footer. We also email you when a published app pauses (credits ran out) and when it comes back online.

What happens to leftover credits if I cancel Pro?

If you paid, they stay. The plan becomes Free at period end (or when Stripe cancels), but a paid balance is not wiped — you can keep spending leftover credits. Pro-only features lock.

Where do I see remaining credits?

Open Plans & credit usage (/billing). Full history: Usage.