You can use Printytron without an account indefinitely. Everything is free — the only difference an account makes is how much you can build:
| Anonymous | Signed-in | |
|---|---|---|
| Prompts per model | Limited | High |
| Models per month | Limited | High |
Anonymous gets enough to properly try things; signing in raises both allowances several-fold. The prompts cap is per build session — start a new model and it resets. The models cap is a calendar-month total that rolls over at the end of each UTC month. The exact numbers get tuned over time; once you're signed in, the My Account page shows your current limits live.
Hit a limit, you get a friendly message telling you exactly what you've used. No nag bars cluttering the UI while you're working.
To sign up: email + password. You'll get a verification email. Click the link, you're back in your session, signed in. The models you made before you signed up come with you.
Sign in from a different browser later — your models follow. Forgot your password? There's a reset link in the sign-in dialog; it emails you a link to set a new one.
Signed in, you also get My Models — every session you've built, resumable from any device (see the My Models article) — and My Account for your display name, badges, plan limits, and email preferences.