Last updated: November 7, 2026
By downloading or using TallCast you agree to these terms and to Apple's Licensed Application End User License Agreement (Standard EULA), which also applies.
TallCast estimates adult height from age, sex, current height and, optionally, the parents' heights, using the public CDC 2000 stature-for-age growth charts and the mid-parental height method. Results are statistical estimates with a range. Real outcomes can fall outside that range.
TallCast is for information and entertainment. It is not a medical device and does not diagnose, treat, or predict any medical condition. Do not make health decisions based on it. If you are worried about growth, puberty, or health, talk to a doctor.
Users under 13 should use TallCast with a parent or guardian. Parents are responsible for purchases made on their children's devices.
All data stays on your device. There is no account and no server. See the Privacy Policy.
Do not reverse engineer, resell, or misuse the app. Share cards you create are yours; do not present them as medical results.
TallCast is provided "as is" without warranties of any kind. To the extent permitted by law, we are not liable for any decisions made or damages arising from use of the app or its estimates.
We may update these terms. The current version is always on this page.