GoPeakGoPeak Support
Predict your adult height range and build the sleep, nutrition and activity habits that help you reach it.
Common questions
Open the iPhone Settings app → your name → Subscriptions → GoPeak → Cancel Subscription. Cancel at least 24 hours before the trial or period ends to avoid being charged. Apple handles all billing and refunds (reportaproblem.apple.com).
Open GoPeak and tap Restore on the subscription screen, or go to Settings (gear icon on Home) → Restore purchases.
GoPeak uses the mid-parental height method: the average of your parents' heights, plus 6.5 cm (2.5 in) for boys or minus 6.5 cm for girls, with a ±8.5 cm range. It is an estimate, not a guarantee, and not medical advice. Talk to a doctor about any growth concerns.
In GoPeak go to Settings → Delete account to permanently remove your account and synced data. Settings → Erase all data removes data stored on your phone.
Contact us
We usually reply within 2 business days.