Mobile Form Reader

Real-time form processing.
Using optical marks recognition algorithms and machine learning our tool helps teachers, sociologists, psychologist and other professionals that have a deal with paper forms daily.
Mobile Form Reader


STest is made to help people in paper form processing. Our lightweight microservice can be hosted on cloud computing engines helping to digitalize test answers in one photo shot! It supports about 600 form boxes on A4 paper saving up to 20 minutes of manual work per sheet.



  • Supports low resolution. We can recognize even a snapshot from the webcam!
  • Instant form boxes recognition
  • Driven with mobile application
  • Get the form output in JSON format
  • Custom number of columns, rows, section and answer mapping

Image adjustment

Corner detection

Optical Mark Recognition


Core Technologies

  • Node
  • OpenCV
  • React Native
  • Lambda