BIOSPHERE collects nothing. It has no accounts, no analytics, and no servers. Everything you write stays on your device, and the app never sends it anywhere — because there is nowhere for it to send it.
Two things, both kept only on your device:
These live in the app's private storage on your device, the same place any app keeps its own files. They are included in your device backups if you have those switched on, which is between you, your device, and your backup provider. Deleting BIOSPHERE deletes them.
If you start a focus timer, the app asks once for permission to send you a notification when that timer ends. It is the only notification BIOSPHERE sends. It is scheduled and delivered entirely on your device — nothing about it leaves the phone, and no server is involved. Declining costs you nothing but that notification; the app is otherwise unchanged.
BIOSPHERE is suitable for all ages and collects no data from anyone, including children.
BIOSPHERE is distributed through the App Store. Apple collects its own information about downloads and, if you have chosen to share it with developers, aggregate crash and usage statistics. That happens between you and Apple under Apple's policies and outside this app; we receive no personal information from it and cannot identify you from it.
If the app ever changes in a way that affects this policy, the policy will change with it, and the date of that change will be recorded here. Given the design of the app, we do not expect this.
Questions about privacy in BIOSPHERE can go to biospheresupport@gmail.com.