Bubu

Privacy policy

Last updated: November 10, 2026

Bubu: Sourdough Tracker ("Bubu", "the app") is an iPhone app for looking after a sourdough starter and planning bakes. This page explains what the app does with your information. The short version is that it doesn't collect any.

What we collect

Nothing. There's no account to make, and no analytics, ads or tracking. We don't run a server for the app, so nothing you type or photograph in it is sent to us.

Your feeds, notes, recipes and photos

Everything you add (feeding times, peaks, bake plans, notes, your own recipes and the photos of your jar or your loaves) is saved on your iPhone only. If you delete the app, it is deleted with it.

Camera

Bubu asks for the camera only when you choose to take a photo of your starter or a loaf. The photo is saved inside the app on your iPhone and isn't uploaded anywhere.

Reminders, widget and Lock Screen

Feeding and bake reminders are scheduled by your iPhone itself. The Home Screen widget and the bake countdown on the Lock Screen read the same information from your iPhone. None of it leaves the device.

Purchases

Bubu Plus is sold through Apple's App Store. Apple handles the payment, and we never see your name, Apple ID or payment details. The app only asks Apple whether Plus is active on your device. Apple's own privacy policy covers the purchase.

Children

Bubu doesn't collect personal information from anyone, including children.

Changes

If this policy changes, we'll update this page and the date at the top.

Contact

Bubu is made by UMH Digital. If you have any questions, email us at appsupport@umhdigital.com.