Trigonify

Terms

Plain-language terms for using Trigonify.

Educational use

Trigonify is provided for learning and reference. While the identities, solvers, and worked steps are carefully checked, always verify results for exams, engineering work, or professional use. Trigonify is provided "as is" without warranty.

Premium & billing

Premium unlocks the triangle solver's worked steps every time rather than once a day, the full applied problem bank, quizzes on the topics you pick, and the progress dashboard. Subscriptions renew automatically and can be cancelled anytime from the link in your receipt email; lifetime is a one-time payment. Billing is handled by RevenueCat and Stripe.

Refunds

Not happy with a purchase? Email [email protected] within 14 days of a first purchase, or within 7 days of a renewal, and we will refund it. Send the message from the email address you used at checkout, and include:

• the email address used at checkout (if you are writing from a different address)
• your access code, shown on the Premium page while you are signed in on the browser you purchased from
• roughly when you purchased, and which plan (weekly, yearly or lifetime)
• the last 4 digits of the card, if you have the receipt handy

That is everything needed to find the purchase and process the refund. This policy does not limit any statutory rights you may have.

Acceptable use

Don't attempt to disrupt the service or resell access. Access is tied to the browser where you purchased and can be moved with your access code.