Interactive Comparison & Simulator

Productivity Caller vs Traditional Reminder Apps (TickTick, Todoist, Google Tasks)

Push notifications get swiped away alongside spam. Productivity Caller makes your phone ring with a real incoming call on the native Android call screen, using the OS Telecom framework. Everything runs locally on your device: no cloud, no account, no AI service.

See Official Case Study →
Real Android Call 100% Local Zero Cloud Offline-First Android Telecom API
The Core Problem

Notification Blindness

Task reminders compete with email, chat pings and spam. A push banner gets swiped away in half a second, and the task is forgotten.

Productivity Caller uses the native Android Telecom API (ConnectionService and TelecomManager.addNewIncomingCall()) to make your phone ring with a real full-screen incoming call locally. The call requires answering or declining—breaking through banner numbness.

👉 Test It Live

Experience the difference: Pick an app on the right and tap Fire reminder to see how phone calls cut through push notification blindness.

Interactive Simulator

Try the Reminder Simulator

Select an app below, fire the reminder, and test your reaction:

Active Scenario
Task: Send invoice to client (Due 5:00 PM)

    Feature Comparison Matrix

    Select a priority to highlight relevant rows. Capabilities are based on architectural specifications and published platform documentation.

    Under the Hood & Technical Metrics

    Author-supplied implementation snapshot. Everything runs locally on device without cloud servers.

    25,310
    Lines of 100% Kotlin · 76 files · 2 modules
    101
    Jetpack Compose functions
    425+
    Unit & integration tests across 15 files
    <3 ms
    Deterministic regex NLP parse latency
    See parsing examples and scheduling architecture

    Quick add parsing examples: "Call dentist tomorrow at 4:30 pm", "Review PR in 45m", "#work call mum !!!". Parsing runs strictly on-device through 55 compiled regex patterns without cloud AI roundtrips.

    Exact alarms support scheduled reminders when Android grants alarms permission. Reboot receivers automatically reschedule pending alarms via Room DB persistence.

    Canonical Source & Author Credit

    Created by Shivam Mahajan, Software Engineer.