← Use Cases

Session data collection for ABA practitioners

Measure behavior during a session, organize work by client, and keep identifying information off the screen, encrypted on your device, with no cloud account.

  • RBTs

    Collect direct-observation data with your eyes on the client, not the screen.

  • BCaBAs

    Run frequency, duration, and interval measures in a clear session window.

  • BCBAs

    Review session figures and export CSV or JSON for graphing and supervision.

Frequency, duration, and interval

Record the measures ABA practitioners use every day, with results tied to a clear session window.

  • Frequency: tap to record; reports count and rate per minute
  • Duration: start/stop per episode; total time, episode count, mean length, percent of session
  • Interval: partial, whole, or momentary scoring across fixed intervals
  • Operational definition field so a second observer scores the same way

Bound every figure to a session

Start and end a session per client with live elapsed time, running totals, Live Activity on Lock Screen and Dynamic Island, and a review before you file the record.

  • Baseline-subtracted results so each session reports only its own window
  • Haptic cues at interval boundaries, so you do not need to watch the screen
  • End-session notes and history filterable by client

Keep client names off the screen

Tools designed for walking into a shared space without flashing a full name on the device.

  • One-tap name codes: the full name never reaches disk
  • Discreet mode masks stored names to codes at display time
  • Colour labels, identifier warnings, and a privacy check
  • AES-GCM encryption at rest, with optional Face ID and passphrase locks

Get data out. Collect from the wrist.

Export session CSV, totals CSV, or a full JSON backup when you need figures for graphing or supervision. Collect on Apple Watch with an encrypted link to the phone, including when you are out of range.

Important disclaimer

CHA1K is a measurement and data-collection utility. It is not an electronic health record, not a diagnostic tool, and not a HIPAA-compliant product. It does not ship with a Business Associate Agreement and should not be described as compliant or “HIPAA ready.”

Ready for the next session

Available for iPhone, with Apple Watch collection included.

Download on the App Store