Terms
The rules for using the PasCalculator, the app and Cal.
Last updated October 28, 2026
1. Who can use it
You must be 13 or older to use the app and Cal. If you're under the age of majority where you live (19 in British Columbia), a parent or guardian must agree to these terms for you, and is responsible for purchases. The calculator itself works for anyone.
2. What the PasCalculator is
A scientific calculator with Cal, an AI helper that reads problems and explains the steps. Exact arithmetic is done by the calculator's own maths engine. Cal's explanations are written by AI and can be wrong. Always check important work.
3. School and exams
Follow your school's rules. Many exams don't allow calculators with wireless or a camera, including BC provincial assessments and the SAT, even with exam mode on. The PasCalculator is a study and homework tool, not an exam calculator. Exam mode turns Cal, the camera, wifi and Bluetooth off and shows EXAM on the screen.
4. Fair use
Daily limits for Cal are shown in the app. Automated or abusive use can be slowed or stopped.
5. Plans and renewals
- Plans aren't final yet. Before you pay, we show the price, how often you pay, that it renews by itself, and how to cancel.
- Cancelling is as easy as signing up: one place in the app or on the website, no phone call.
- Yearly plans: we remind you 30 to 60 days before each renewal, and you can cancel without a penalty.
- Plans bought inside the iPhone app are handled by Apple, under Apple's rules.
6. Your content
You own your questions and photos. You let us use them only to answer you and run the PasCalculator (see Privacy). Don't upload other people's private information.
7. Updates
The calculator and app get updates over wifi. Some updates may be needed for Cal to keep working. The calculator keeps working offline as a scientific calculator even if Cal ever stops.
8. Don't misuse it
No breaking into our servers, other people's calculators, or the maintenance mode. No reselling access to Cal.
9. Open-source parts
The PasCalculator uses open-source software. The list of licences will be on this website to be confirmed.
10. Liability
Nothing here takes away rights you have by law as a consumer. Apart from those, our liability is limited to what you paid us in the last 12 months to be confirmed.
11. Changes
We tell you in the app before important changes to these terms apply.
12. Law
The laws of British Columbia, Canada to be confirmed, without removing consumer rights you have where you live. In Quebec, these terms will also be available in French.