One mode is free forever. Unlock the second for a one-time $14.99 — no recurring charges, no hidden tiers, no upsells.
Pure cause-and-effect — for the 0–12-month crowd.
Free during beta and beyond.
For 12+ months — letter and number keys spawn the matching glyph.
One-time payment — yours for as long as the app exists.
Checkout is hosted by Stripe · Secure by design.
Side by side
| Feature | Sensory Play | Letters & Numbers |
|---|---|---|
| Rainbow trails, bubbles, ribbons, falling shapes | ✓ | ✓ |
| Number keys spawn that many shapes | ✓ | ✓ |
| A–Z keys spawn the matching letter | — | ✓ |
| 0–9 keys spawn the matching numeral | — | ✓ |
| Kiosk lockdown & adult escapes | ✓ | ✓ |
| Price | Free | $14.99 once |
Pricing questions
Yes. There's no subscription, no auto-renew. You pay once and Letters & Numbers stays unlocked on every device you sign into with that account.
Within 14 days of purchase, email us and we'll issue a full refund through Stripe — no questions asked. After 14 days, refunds are evaluated case-by-case.
Yes. Sign in with the same email on every Mac you want to play on. There's no device limit, no household quota, and no online check after the first sign-in (we cache a 30-day offline license).
$14.99 USD is the headline price. US sales tax may be added at checkout depending on your state; Stripe calculates this automatically. Prices for non-US customers may show in your local currency.
v1.0 was free; everyone keeps full access on v1.0 forever. v2.0 introduces the paid Letters & Numbers tier. If you upgrade to v2.0 from v1.0, you'll need to sign up to use the paid feature.
Whatever Stripe Checkout supports for your region — major credit cards, Apple Pay, Google Pay, Link, and country-specific methods (iDEAL, Bancontact, etc.). Card data never touches our servers.
Download BabyBoard, hand the laptop over, and decide later whether to upgrade.
macOS 14.0 Sonoma or later · Apple Silicon & Intel
