My Body Log was created by Atadore, a Swiss company, owned by Damian Mehers
My Body Log has no properietary cloud component and no analytics and tracking. Your data stays within your Apple account. Nor does the app use third party services for analytics, advertising etc.
My Body Log uses Apple’s iCloud to sync your data between devices.
Atadore does not collect or store any data on servers when you use the app.