Support
Contact Us
Have a question, issue, or feedback? We're here to help.
Email us at support@readfast.io and we'll get back to you within 24 hours.
Frequently Asked Questions
How does RSVP reading work?
RSVP (Rapid Serial Visual Presentation) displays one word at a time, centered on the Optimal Recognition Point. This eliminates eye movement, allowing you to read 2-3x faster than traditional reading.
What file formats are supported?
ReadFast supports PDF, DOCX, EPUB, TXT, and Markdown files. PDFs must have selectable text — scanned documents are not supported.
Can I use ReadFast on mobile?
Yes! ReadFast works in mobile browsers and has native iOS and Android apps available on the App Store and Google Play.
Is my data private?
Yes. Your documents are stored securely and never shared with third parties. You can delete your data at any time from account settings.
Troubleshooting
Document not loading?
Make sure your PDF has selectable text (not a scanned image). Try refreshing the page or re-uploading the document. Clear your browser cache if the issue persists.
Login issues?
Check your spam folder for magic link emails. If using OAuth (Google, GitHub, X), make sure you're signing in with the same provider you used to create your account.
Sync not working?
Cloud sync requires a Pro subscription. Check your internet connection and try refreshing the page. Progress syncs automatically when online.
Feature Requests
Have an idea to make ReadFast better? We'd love to hear it. Send your suggestions to support@readfast.io with "Feature Request" in the subject line.
See also: Privacy Policy · Terms of Service