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Terms

Last updated November 14, 2026

These terms are an agreement between you and Cellwise, operated by Alexander J Rigas (“we”). By using Cellwise, you agree to them. If you don’t agree, please don’t use Cellwise.

Using Cellwise

Cellwise is a practice tool for learning spreadsheet and SQL skills. Use it for your own learning, or to teach others. Please don’t copy its lessons or exercises to publish elsewhere, try to break or overload the site, or access other people’s accounts.

Your account

You must be at least 13 to create an account. Keep your password private: you’re responsible for what happens under your account. You can delete your account at any time from your account page.

Free and paid access

The first module, the daily challenge, flashcards, function pages and guides are free. Full access unlocks every lesson, the SQL track, projects, mock interviews, practice exams and the certificate. What’s included in each may change as we add and improve lessons, but we won’t take away the core of what a paid plan includes while it’s active.

Payments

  • Plans are sold by Polar (polar.sh), our reseller and merchant of record. Polar handles payment, invoices and sales tax, and its buyer terms also apply to your purchase.
  • Prices are in US dollars. Today they’re $14.99 a month, $49 a year, or $149 once for lifetime access. Tax is added where it applies.
  • Monthly and annual plans renew automatically until you cancel. You can cancel any time from your account page, and you keep full access until the end of the period you’ve paid for.
  • If we change a price, the change applies from your next renewal, and we’ll email you before it does.
  • “Lifetime” means for as long as we run Cellwise, with no further payments. If we ever shut Cellwise down within two years of your lifetime purchase, we’ll refund part of it, in proportion to the time left in those two years.
  • Refunds are covered by our refund policy.

Certificates and exams

Do your own work. Certificates reflect an unsupervised online assessment, and they aren’t a Microsoft credential. We may withdraw a certificate that was earned dishonestly, or close an account used to cheat.

Accuracy

The practice spreadsheet is built to behave like Excel, and we test it against real Excel, but it isn’t Excel, and small differences exist. Lessons teach general skills, and aren’t financial, accounting or legal advice.

Availability

We work to keep Cellwise running and your progress safe, but we can’t promise it will always be available or free of errors. Cellwise is provided “as is”, to the extent the law allows.

Limit on our liability

To the extent the law allows, we aren’t liable for indirect or consequential losses, and our total liability to you is limited to what you paid us in the 12 months before the claim. Nothing in these terms limits rights you have under consumer protection laws that can’t be waived.

Ending your use

You can stop using Cellwise and delete your account at any time. We may suspend or close an account that breaks these terms. If we close a paid account for a reason other than a breach of these terms, we’ll refund the unused part of your plan.

Trademarks

Excel is a trademark of Microsoft Corporation. Cellwise is independent, and isn’t affiliated with, endorsed by or sponsored by Microsoft.

Changes and contact

We may update these terms. If a change matters, we’ll update the date above and email account holders before it takes effect. These terms are governed by the laws of Ontario and the federal laws of Canada that apply there. Questions? Email support@getcellwise.com.