Pricing
A selection of experiments is free to use without an account. A subscription unlocks the complete library — all 117 experiments, on both the mobile and the desktop version, which always carry the same set. The three subscription plans differ only in the billing period.
Pick the 3-day pass and you pay $1.00 once: three days of access, then it ends on its own — no renewal, no card kept on file. Pick any subscription plan and your first payment is also $1.00 for the first 3 days; when those 3 days end it renews automatically at the price shown on that plan — $9.99 every month, $49.90 every 6 months, or $89.99 every 12 months. Cancel before the trial ends and you are charged nothing further.
The $1.00 trial and the $1.00 3-day pass are one per customer, not one each: once you have used either, later purchases bill at the normal plan price.
3-day pass
- All 117 experiments for 3 days
- AI tutor without a daily limit
- Ends automatically — no card on file
- One pass per customer
Monthly
- All 117 experiments, mobile and desktop
- AI tutor without a daily limit
- Courseware downloads when released
- Cancel anytime
6 months
- All 117 experiments, mobile and desktop
- AI tutor without a daily limit
- Courseware downloads when released
- Cancel anytime
12 months
- All 117 experiments, mobile and desktop
- AI tutor without a daily limit
- Courseware downloads when released
- Cancel anytime
All prices are in USD and exclude tax. Sales tax, VAT and GST are
calculated at checkout from your billing country and collected by Creem as merchant of record.
Cancelling. Cancel from your account page at any time — it takes two clicks,
no email and no phone call required. Access continues until the end of the period you have
already paid for, and the subscription does not renew.
Refunds. Unused subscriptions can be refunded within 14 days —
see the refund policy. Refunding a subscription ends access
immediately and also revokes any download or licence issued under it.
Payment methods. Card, PayPal, Apple Pay and Google Pay, handled entirely by
Creem. We never see or store your card details.
Classroom and institutional licences. Volume pricing for schools and tutoring
centres is quoted individually — write to us at the address below.
Acceptable use. The AI tutor may not be used to generate sexual or adult
content — see the Acceptable Use Policy.
What's included
| Feature | Free | Subscribed |
|---|---|---|
| Interactive experiments, mobile | A selection, no sign-in | All 117 |
| Interactive experiments, desktop | A selection, no sign-in | All 117 |
| Sandbox builder | Yes | Yes |
| AI tutor questions per day | 10 | Unlimited |
| Courseware downloads, no watermark | — | In preparation |
| Offline licence | — | In preparation |
The free selection needs no account and no payment. A subscription opens the rest of the library: all 117 experiments, the same list on mobile and on desktop. Courseware downloads and the offline licence are included in the same price as they ship, with no upgrade charge — see the desktop page for the current state of each.