Skip to content
Commitwise
Menu

Privacy Policy

Last updated 10 November 2026

Commitwise collects as little as it can. You can read every lesson without an account, and your learning progress stays in your own browser unless you choose to sync it with Commitwise Pro. This page explains what we do collect when you sign in, subscribe or sign up for the newsletter.

The data controller is Bojan Valjic, trading as Kaibyte, Serbia. Contact: commitwise@kairoom.dev.

What we collect and why

  • Your email address, when you sign in. We use it to send you sign-in codes, to recognise your account and to tell you about important changes to your subscription. Legal basis: performing our contract with you.
  • Sign-in and session data: one-time sign-in codes and session cookies, stored only as scrambled (hashed) values. Sessions last 30 days; used sign-in codes are deleted within a day.
  • Your IP address, when you ask for a sign-in code, to stop abuse (limiting how many codes can be requested). It is deleted with the sign-in code, within a day. Legal basis: our legitimate interest in keeping the service safe.
  • Subscription details, if you buy Commitwise Pro: the plan, its status, renewal and end dates, and Lemon Squeezy's reference number for your subscription. We don't receive or store your card details. Legal basis: performing our contract, and keeping records the law requires.
  • Synced progress, if you have Commitwise Pro: a copy of your learning progress (completed lessons and parts, quiz results, checklists, your review-card schedule and your version and code language settings), so it can follow you to your other devices. It's replaced each time you sync and deleted with your account. Legal basis: performing our contract with you.
  • Newsletter, only if you sign up: your email address, stored by Kit. Legal basis: your consent; every email has an unsubscribe link.
  • Technical logs: when you use the sign-in and account features, our hosting provider records basic request logs (time, address requested, errors) that we use to fix problems. They are kept for a short time.

What stays on your device

Your learning progress, quiz results, review-card schedule, theme and similar settings are saved in your browser's local storage. Unless you have Commitwise Pro (see above), they aren't sent to us. You can export them on theprogress page and delete them by clearing the site's data in your browser.

Cookies

We use one cookie, cw_session, which keeps you signed in. It is strictly necessary, so it doesn't need consent. We don't use advertising or tracking cookies, and we don't sell your data.

Who processes your data for us

  • Cloudflare: hosting, the account database, and Turnstile (the "are you human?" check on the sign-in form).
  • Brevo: sends the sign-in emails.
  • Lemon Squeezy: sells Commitwise Pro as our reseller and handles payments, taxes and receipts. For your purchase it is an independent controller under its ownprivacy policy.
  • Kit: the newsletter, if you sign up.

Some of these companies process data outside Serbia and the EU (for example in the United States). Where that happens, they rely on the safeguards the law requires, such as the European Commission's standard contractual clauses.

How long we keep it

We keep your account until you ask us to delete it. Subscription records may be kept longer where tax or accounting law requires it. Sign-in codes, sessions and IP addresses are deleted automatically as described above.

Your rights

You can ask to see the data we hold about you, to correct it, to delete it, to receive a copy, or to object to how we use it. Email commitwise@kairoom.dev from the address on your account and we'll answer within 30 days. If you think we've handled your data wrongly, you can complain to the Commissioner for Information of Public Importance and Personal Data Protection of Serbia (poverenik.rs) or to the data protection authority in your own country.

Children

Accounts are for people aged 16 or over. If you believe a younger child has given us their email, contact us and we'll delete it.

Changes

If we change this policy, we'll update the date at the top. For important changes we'll also email account holders.

Esc

Type to search the whole site.