Usability Test Datalogger

If the Datalogger saves you time in preparation and data analysis, please make a donation. The transaction will be handled by PayPal.

  • You don't need an account with PayPal to make a donation.
  • PayPal is safe and secure and accepts all major credit cards.
  • Your donation will go directly to the author, Todd Zazelenchuk (not to Userfocus).
  • We suggest a donation of $25, but if you want to give more or less that's OK.