Wearable fitness tracker that uses AI to optimize workouts, sleep, and recovery with continuous health insights.
Silent
About Silent
Silent is an iPhone application designed for private health tracking with integrated on-device AI capabilities. The tool consolidates multiple health metrics such as calories, macros, water intake, weight, steps, and sleep into a single dashboard that users can customize. All data processing occurs locally on the device, ensuring privacy without requiring user accounts or third-party servers. Core features include AI-powered calorie logging, habit tracking with streak management, fasting timers with Live Activities, and HealthKit integration for syncing with Apple Health data. The app supports manual logging alongside automated data collection and provides analytics, achievements, and personal records. Silent operates on iOS 18 or later and is compatible with iPhone devices, with Apple Intelligence enhancing certain AI Coach functions on supported hardware. The interface emphasizes simplicity and focus, avoiding unnecessary notifications or competing data views.
Key features
- AI calorie logging with on-device processing
- Habit tracking with streak management
- Fasting timer with Live Activities integration
- HealthKit data synchronization
- Customizable dashboard with rearrangeable views
- Achievements and personal records tracking
- Meal templates and saved foods
- Apple Intelligence-powered AI Coach
Use cases
- Daily health monitoring with consolidated metrics
- Privacy-focused calorie and nutrition tracking
- Habit formation with streak-based motivation
Pros
- One-time purchase with no subscriptions or feature paywalls
- All data processed on-device with no cloud storage or third-party access
- HealthKit integration for syncing with Apple Health metrics
- Customizable dashboard with manual and automated tracking options
- Apple Intelligence support for local AI processing on compatible devices
Cons
- Requires iOS 18+ and iPhone hardware
- Apple Intelligence features limited to iPhone 15 Pro and later
- No Android or cross-platform support
- No free tier or trial available
Frequently asked questions about Silent
Does Silent require a subscription?
No. Silent is a one-time purchase with all features fully unlocked. There are no subscriptions, upgrade prompts, or feature paywalls.
Is my health data private?
Yes. All data is processed and stored locally on your iPhone. The AI Coach uses Apple Intelligence, which operates entirely on-device without sending data to any server.
What is Apple Intelligence?
Apple Intelligence is Apple's on-device AI system available on iPhone 15 Pro and later with iOS 18.1 or newer. Silent uses it to power the AI Coach, with all processing handled locally.
Does Silent sync with Apple Health?
Yes. Silent reads steps, active calories, sleep, weight, and other data from Apple Health. Manual logging is also supported, and data sources are clearly labeled.
Can I use Silent without Apple Intelligence?
Yes. All core features, including calorie tracking, habit builder, fasting timer, analytics, achievements, and widgets, work on any iPhone running iOS 18. Apple Intelligence enhances the AI Coach functionality.
How do I get started with Silent?
Download Silent from the App Store, install it on an iPhone running iOS 18 or later, and begin tracking health metrics. No account creation or internet connection is required.