Whistle is an AI-powered fitness app that helps users build, adapt, and track personalized training programs for running, cycling, swimming, and strength work. It integrates health data, offers flexible scheduling, and provides actionable insights to optimize workouts. Designed for fitness enthusiasts seeking structured, adaptive training without a personal coach.
Whistle is a Health & fitness product. It focuses on creating and adapting personalized workout plans without needing a human coach. It is built as a consumer product for fitness enthusiasts. There is a free tier, and paid plans start at $10. The product ships for iOS.
Behind Whistle is Vogelhaus Apps GmbH, based in the United States, and the product first shipped in 2025. Key capabilities include AI workout planner, personalized training, and progress tracking.
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