Von Frey support
For questions about Von Frey, contact Yamen Abbas.
Email support
vonfreyapp@proton.meInclude the app version, iPhone model, iOS version, and a description of what happened. Please leave confidential research data out of your message.
Frequently asked questions
Where is my session stored?
The current session and recovery data are stored on your iPhone. Von Frey does not upload research-session data.
How do I find an exported CSV?
Open Files, choose On My iPhone, and open the Von Frey folder. You can also share a new export from the app.
How do I delete data?
Delete CSV exports and audit logs from the Von Frey folder in Files. Starting a new session removes current-session recovery data but preserves earlier exports and logs. Removing the app deletes locally stored app data, subject to device backups and copies previously exported.
Does the app require internet access or an account?
No. The iPhone app works offline and does not require an account.
Why can I record a response while the rest timer is running?
The rest countdown is informational rather than a software lockout. Researchers remain responsible for following their approved study protocol.
Scope of support
I can help with app operation and data-export issues. Filament sets, testing intervals, and interpretation of results should follow your approved study protocol.
Data from the earlier browser version
Earlier sessions and saved export history remain in the browser where you used them. Clearing this website’s data in your browser removes those records. Downloaded CSV files must be deleted separately.
Privacy
Review how Von Frey stores and shares data in the privacy policy.