Premium subscription

The core of Ershov Computer stays free: 47 levels, the library and the AI mentor with 20 requests per day. Premium adds cloud progress, more AI requests, a review of your own solution and a personal certificate. Payment by RU card only.

Cloud progress

Circuits, chips, Verilog projects and modules are stored on the server and open on any device. After the subscription ends the progress stays readable and can be exported as JSON.

AI: 100 requests per day

Instead of 20 requests — 100. The limit is shared by the game and the library and counted per account.

Solution review

After completing a level the “Review my solution” button explains your circuit, compares it with the reference and suggests simplifications.

Personal certificate

A PDF certificate with your name and a verification QR code. The name is published only if you tick the box yourself.

Support within 24 hours

A support reply on business days — no longer than 24 hours. No auto-renewal: the subscription simply ends.

How to pay

1990 RUB per year · payment by RU card only

  1. Sign in by email below — a code will arrive by mail. Remember the account email.
  2. Transfer 1990 RUB to the self-employed author's card. Put the account email in the payment comment.
  3. Send the receipt or confirmation to support@ershovcomputer.ru with the subject “Premium <account email>”. The email can be sent from any address.
  4. We verify the payment and send an activation code to the account email — usually within 48 hours on business days.
  5. Enter the code below. The subscription starts at activation and lasts 365 days.

Payment details: the self-employed author's card is confirmed before the public launch. If Premium is not open yet, the page shows the “soon” status.

Sign in and activate

Documents

Refunds

A refund is available within 14 days if fewer than 200 Premium AI requests were used and no personal certificate was issued. The refund is sent back to the same card; the details are requested via support. After 14 days there are no refunds except where required by law.