Effective August 22, 2026
These terms cover your use of the 123Hand iPhone app, published by 123division ("we", "us"). By using the app you agree to them. 123Hand is free; there are no purchases or subscriptions.
123Hand uses your iPhone's camera and LiDAR sensor to capture a hand and build a 3D mesh from which a volume estimate can be derived. It is a measurement tool for athletes, coaches and researchers. It is not a medical device and gives no health, medical or diagnostic advice. Results depend on scanning conditions and device hardware; treat them as estimates.
You need an account (email and password) to use 123Hand. Keep your password private; you are responsible for activity under your account. You can delete your account at any time from the account screen in the app — deletion is immediate and permanent and removes every scan record saved to it.
Scans, images and meshes you create belong to you. The images and mesh stay on your device; the name you give a scan, its date and measurement numbers are saved to your account so the app can show them to you (see the Privacy Policy). You are responsible for them and for anyone you choose to share them with. Scan other people's hands and enter their names only with their permission.
Don't use the app unlawfully, try to reverse-engineer it beyond what the law allows, or use it in a way that could harm others.
123Hand requires an iPhone with a LiDAR sensor running iOS 17 or later. On unsupported devices the app explains this and cannot scan.
We may update, change or withdraw the app or its account service at any time. Your capture files live on your device, so withdrawing the service does not delete them; we would give reasonable notice before deleting account records.
The app is provided "as is" without warranties of any kind. To the fullest extent permitted by law, 123division is not liable for any indirect, incidental or consequential damages arising from use of the app or reliance on its measurements.
These terms are governed by the laws of the United States and the state in which we are established, without regard to conflict-of-law rules.
If these terms change we will update this page and the effective date above. Continued use after a change means you accept the new terms.