Built for professionals who count and time

ABA therapy

Session measurement for behavior data

Frequency, duration, and interval tools for RBTs, BCaBAs, and BCBAs, with discreet labels and export for graphing or supervision.

• Session-bound rates and interval percentages
• Name codes and discreet mode in shared spaces
• CSV and JSON export when the session ends

Read the ABA use case

Educators and special education

Classroom tallies without the distraction

Track on-task timing, participation counts, and interval checks while keeping student identity coded on the screen.

• Quick frequency taps during instruction
• Duration and interval tools for structured observation
• Discreet codes and colour labels in shared classrooms

Speech, OT, and related therapy

Trial counts and target timing

Record trials, time how long a target lasts, and keep session notes without putting a full name on the lock screen.

• Frequency for trials and prompts
• Duration for engagement or skill episodes
• On-device encryption and optional app lock

Research and lab observation

Structured windows, clean export

Run observation windows with consistent counters and timers, then export CSV or JSON for analysis. Nothing syncs to a CHA1K cloud by default.

• Clear start and end for each observation session
• Operational definitions per counter
• Exports that leave the app only when you choose

Coaching and athletic training

Reps, work, and rest from the wrist

Count reps, time work and rest intervals, and keep collecting on Apple Watch when you step away from the phone.

• Frequency and duration for sets and drills
• Interval cues with haptics
• Encrypted Watch collection, including offline queues