Von Frey for iOS

Support

Email us for help with the app, exports, or accessibility.

Email support

vonfreyapp@proton.me

Include your app version, iOS version, and what happened. Only send confidential research data if your institution permits sharing it by email.

Frequently asked questions

Where is my session stored?

Your current session and recovery data are saved on your iPhone. Von Frey does not upload them.

How do I find an exported CSV?

Open the Files app, choose On My iPhone, and open the Von Frey folder. You can also share a newly created export directly 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. Version 1.0.0 has no account or network service and works offline.

Why can I record a response while the rest timer is running?

The timer is a reminder and does not prevent you from recording a response. Follow the rest intervals in your approved protocol.

Before reporting a problem

  1. Check the app version at the bottom of the Method & Privacy screen.
  2. Confirm the device is running iOS 17 or later.
  3. If it is safe to do so, close and reopen the app. The current session should be offered for recovery.
  4. Note the steps that caused the problem and any message shown on screen.

Scope of support

We can help with using the app and exporting data. For filament selection, testing intervals, animal welfare, and interpretation of results, follow your approved protocol and consult your research team.

Privacy

Review how Von Frey stores and shares data in the privacy policy.