# Gradual Alarm > Gradual Alarm is an intelligent, gentle alarm clock application for Android, Wear OS, iOS, and watchOS designed to eliminate jarring morning awakenings through 4-stage progressive volume alarms, bedtime reminders, customizable sounds, and anti-snooze math puzzles. Gradual Alarm (developed by Penqn) replaces abrupt, stress-inducing alarm chimes with a gradual volume ramping curve across up to four stages. By gently nudging the sleeper from deep sleep into lighter sleep phases before the final wake-up time, users experience reduced sleep inertia, lower morning cortisol spikes, and a calmer start to their day. ## Key Features - **4-Stage Alarms**: Automatically configures 4 alarms within a specified time window, gradually increasing volume and chime frequency. - **Gradual Volume Fade-In**: Smooth volume transitions so the final alarm sounds natural and calming rather than shocking. - **Bedtime Reminders**: Proactive notifications encouraging consistent sleep schedules and optimal wind-down routines. - **Math Puzzle Dismissal**: Cognitive challenges (arithmetic equations) requiring active mental engagement to dismiss, preventing accidental snoozing. - **Custom Alarm Sounds & Loops**: Support for built-in soothing sounds, nature soundscapes, and custom audio files. - **Custom Vibration Patterns**: Fine-tuned tactile vibration settings for gentle physical waking. - **Multi-Device Support**: Built natively for Android, Wear OS smartwatches, iOS, and Apple Watch (watchOS). - **Privacy-First**: Operates locally on-device without tracking personal sleep habits or biometric data. ## Pricing - **Free Tier ($0)**: 2-stage progressive alarms and vibration customization. - **Pro Tier ($2.99 one-time purchase)**: All features unlocked forever - 4-stage alarms, bedtime reminders, math puzzle dismissals, custom sounds, and priority updates. No subscriptions, no ads. ## Documentation & Canonical Links - [Gradual Alarm Official Site](https://alarm-clock.app/): Main landing page with features overview, FAQ, and download options. - [Full LLM Context](https://alarm-clock.app/llms-full.txt): Comprehensive documentation including technical details, sleep science concepts, and exhaustive product specifications. - [Google Play Store](https://play.google.com/store/apps/details?id=in.penqn.perfsleep): Official Android and Wear OS app listing. - [Privacy Policy](https://penqn.in/privacy-policy): Full privacy and data practices policy. - [Terms of Service](https://penqn.in/tos): Terms and conditions. ## Contact & Publisher - **Publisher**: Penqn (https://penqn.in) - **Support**: support@alarm-clock.app