These terms describe the use of Bit Kido's browser-based lessons and the Addition course. Please read them together with the privacy and refund policies before purchasing.
The course
The binary-card lesson is free. The paid Addition course includes the half adder, full adder, 2-bit, 4-bit and 8-bit adders, and the calculator. It is delivered through the website; no physical goods are shipped.
The course is for personal learning. Keep your account credentials private. Do not resell course access, distribute paid materials without permission, bypass access controls or interfere with the website.
Parent accounts and access
A parent or guardian should manage registration and purchases. Use an email address you can access, and contact support if you suspect someone else is using your account.
Purchases are linked to the account used at checkout. Lesson progress is stored in the current browser and does not automatically follow the account to another device. Deleting the account removes access; it does not automatically refund an order.
Price and payment
The Addition course costs US$1.99 as a one-time purchase, with applicable tax included in that price. It is not a recurring subscription. The checkout shows the amount before payment; your bank or card provider may apply its own currency-conversion charges.
Creem hosts checkout and acts as the merchant of record for the transaction. Its buyer terms also apply to checkout. Access is granted after our server confirms payment; returning from checkout alone is not confirmation.
When checkout is marked as test mode, no real payment is collected and test access does not count as a purchase in live mode.
Using the website
You need an internet connection and a compatible browser. Browser settings can affect sound, saved progress and checkout. Audio may require you to press the lesson's start button.
If paid access fails or the course is not as described, contact support with your order reference. Learning outcomes vary; the course does not promise a particular grade or qualification. Nothing in these terms removes consumer rights or remedies that applicable law requires.
Updates and questions
We may update the website and these terms. Updated wording will be shown on this page with its date; it does not remove mandatory rights relating to an earlier purchase. Contact support if you have a question about your order or access.