Jupiter Signup has two halves. The functionality below is what the form actually does and enforces, you get it just by asking. The design is wide open: the page is authored by AI, so the look is whatever you describe.
Reviewed 2026-07-07
Just say it in chat, these are handled and enforced for you.
Sell spots as priced items. The server recomputes every charge from the catalog, so the page can never be tampered with to change a price.
Offer a bundle that covers several items at a better price. Buying it counts toward each thing it includes (including their capacity), and picking the bundle grays out and zeroes those items so no one double-buys what's already in it.
Optional extras a person can tack on to their sign-up.
Payments are optional. A form can charge, be entirely free, or mix paid and free options, and no price or total shows when nothing costs money.
Automatic quantity discounts, applied and re-checked on the server so the total is real.
A code people type, or a self-serve checkbox like “I'm on a scholarship”, that takes a set percentage off, up to 100% for a free spot. Applied on the page and re-checked on the server, so the real charge always matches.
Take real card payments straight to your own Stripe account via Stripe Connect, with a small platform fee. The buyer pays by card at checkout and the signup is confirmed automatically once the payment clears.
No card processing to set up: add your payment handles once, and people pay you directly with a one-tap button right after signing up. You mark who's paid in Results. The money goes straight to you, nothing passes through us.
If any option has a price, the server keeps the form closed to sign-ups until the creator picks how they get paid: cards, off-platform, or a deliberate no-charge. This stops a priced form from quietly taking sign-ups it can't collect on, and the button only says “Pay” when money is actually collected.
Cap how many can take an option. The form shows how many are left, disables the option when it fills, and the server refuses to overbook.
Let people choose at most (or at least) a set number from a group of options.
Stop people choosing two options that can't go together, like two sessions in the same time slot.
Close the whole form at a date and time you set. After it passes, the page shows a clear 'sign-ups are closed' notice and the server refuses any new submission.
Ask for whatever you need, short text, email, phone, numbers, dropdowns, or longer paragraphs, and mark any of them required.
Attach a question to a specific option, so it's asked only when someone picks that option. Make it required or optional. Put it on every option or just some.
Add a phone field to the form with one toggle.
After signing up, people can email themselves a confirmation, no setup needed, and nothing is sent unless they ask for it.
You get an email for each new sign-up, with who signed up and what they chose, and replies go straight to them. On by default; turn it off per form for high-volume sign-ups. Paid sign-ups notify once the payment clears.
When a form has a date, the confirmation screen offers one-tap add-to-calendar: a Google Calendar link for each event the person signed up for, plus an .ics download for Apple Calendar or Outlook. Nothing is sent; the responder adds it themselves.
Turn it on and everyone who signed up gets a reminder before the event, a day ahead by default, by email and by text (a text goes to anyone who gave a mobile number and opted in). Chat to change the timing or wording, or add another. Needs a date on the form. Send yourself a test to see it first; people can opt out any time, or reply STOP to a text.
Turn it on and once every spot is taken, the form collects a waitlist (name and email) instead of just closing. You see who's waiting in Results and email them yourself when a spot opens. Nobody is auto-added, no spot is held.
Every form gets its own link to share anywhere.
Grab an embed snippet from your dashboard and paste it into any web page. The form appears inline, submits in place, and the frame auto-resizes. Paid forms hand off to secure checkout in the top window.
See every response in a table and ask plain-English questions about them.
See how many real people opened your form, the share who signed up, and roughly where views came from. Bots, link previews, and your own visits aren't counted.
The page itself is designed by AI, so there's no template to fit inside. Describe the look and it's built, then tweak it by chatting.
Hero, sections, tone, wording, "make it feel like a festival lineup," "warmer copy," "add an FAQ."
Light or dark, with accent colors, flip them instantly under Setup, or just ask.
Group options however makes sense, by time, by tier, by location, and rearrange anytime.
Badges, notes, nudges, helper text, ask for the touches that fit your event.
Upload your logo under Setup and it shows on your form.
Asked for something we can't do yet? The form tells you honestly instead of pretending, and we log it to decide what to build next.
Question we didn't answer? Ask a human.