App legal
Privacy policy for the B⁴ App
As of October 2026.
1. What this notice covers
This notice explains which personal data we process when you use the B⁴ App. We process data only as far as this is needed for your training and support by our team.
2. Controller
Privatpraxis/-institut Dr. KAF, PD Dr. med. habil. G. Ama K. Finjap, Europastr. 4, 67433 Neustadt an der Weinstraße, Germany. Email: privacy@b4neuroperformance.com. Telephone: +49 6321 96386-25. Our data-protection contact can also be reached at privacy@b4neuroperformance.com.
3. Technical data when you use the app
Each use of the app sends technically necessary data such as an internal device ID, operating-system and app version, time of access and IP address. We use this data to provide the app, fix errors and defend against misuse. We do not store it permanently. IP addresses are stored only for attack defence and for no longer than seven days.
4. Account and training data
For your account we process your email address and name. For your training we process consultation notes, your plan, completed exercises, your feedback after exercises, and if you fill them in, questionnaires about your progress. These details can be health data. We process them only on the basis of your explicit consent and to fulfil the contract for your training support.
5. Storage location
Your data is stored on servers of service providers in Germany.
6. App permissions
The app asks for internet access so videos can play and entries can be stored and transferred. It can also ask for notifications for reminders about your sessions. These reminders are created locally on your device rather than through an advertising provider. Permissions can be changed in your device settings at any time.
7. Contact and support
If you contact us by email, phone, post or chat, we process the information you provide in order to handle your request. We delete that information when it is no longer needed, unless legal retention obligations require otherwise.
8. Service providers and recipients
We do not pass your data to third parties unless disclosure is required for the service. Access is limited to staff who need it for their task and to processors we have contractually bound for hosting, maintenance and IT support. All staff are bound by medical confidentiality. If another organisation pays for your membership, we pass on only the pseudonymised number needed for billing.
9. Google Cloud
To improve training recommendations, we use Google Cloud from Google Ireland Limited with processing on servers in Frankfurt am Main. Only a pseudonymised, encrypted user ID and a pseudonymised, encrypted user profile are stored there, without your name or email address. We alone hold the key linking those records back to you.
10. Retention and deletion
Your data is deleted automatically after the support period ends. If you use a one-off licence, we store the data for up to 365 days and then delete it fully if you have not opened the app for three further months. Data subject to legal retention duties is deleted after those duties end. To delete your account earlier, email app@b4neuroperformance.com from the address linked to your account. We will confirm deletion by email. Recovery after deletion is not possible.
11. Correction, portability and rights
You can correct false entries directly in the app. For further corrections or a copy of your data, email app@b4neuroperformance.com. You have the right of access, rectification, deletion, restriction of processing, objection and data portability, as well as the right to lodge a complaint with a supervisory authority.