Private by design
Dog profiles, photos, notes, routines, reminders, and session history stay on your device. WHSTL has no ads, analytics, account, or tracking SDK.
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DOG TRAINING, MADE PRECISE
A whistle, clicker, and training companion in one.
WHSTL gives dog owners an adjustable high-frequency whistle, a responsive clicker, guided routines, reminders, and private training history—without an account or cloud processing.
Adjustable whistleInstant clickerGuided routinesPrivate by design
Responsible training
Clear safety guidance and honest hardware limitations help you use sound calmly and responsibly. WHSTL never promises ultrasonic output or guaranteed behavior change.
Read the Terms of Use →Human support
Need help with sound output, notifications, local data, or restoring WHSTL Pro? Start with our focused support guide or contact AppSweat.
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