UnlockToLearn: The Flashcard App That Makes You Smarter Every Time You Use Your Phone

Feb 7, 2026 min read

Overview

UnlockToLearn is a mobile application that transforms the moments you spend unlocking your phone into learning opportunities. We unlock our phones 96 times per day on average — why not use those moments to review flashcards, learn languages, or master new concepts?

The Problem

Traditional learning apps require deliberate action:

  • Remember to open the app
  • Manually start a study session
  • Resist the temptation to switch to social media

UnlockToLearn flips this model by leveraging moments when you’re already reaching for your phone.

How It Works

On Android

  • Unlock Trigger — See a flashcard before accessing your home screen
  • App Launch Trigger — Answer a flashcard before opening any app

On iOS

  • Lock Screen Widgets — Review cards directly from your lock screen (iOS 16+)
  • Interactive Home Screen Widgets — Swipe to answer without opening the app (iOS 17+)
  • Siri Shortcuts & Notifications — Study on your schedule

Key Features

  • ANKI Import — Full .apkg compatibility with progress preservation
  • Swipe Gestures — Swipe right to correct, left to review
  • Spaced Repetition — Cards you struggle with appear more frequently
  • 100% Offline — Everything stays on your device
  • Privacy-First — No account, no data collection

Technical Stack

  • Framework: Flutter (cross-platform iOS & Android)
  • Architecture: Clean code principles, modular design
  • Platform Requirements: Android 8.0+, iOS 16.0+
  • Performance: Minimal battery impact, efficient background processing

Permissions & Battery Optimization

The app intelligently manages permissions:

  • Notifications for study reminders
  • Accessibility Service for app launch detection (Android only)
  • Display over other apps (Android only)

All permissions are requested only when relevant features are enabled.

Learn More

For complete information, guides, FAQs, and to download the app, visit the full website:

https://apps.vincentschill.ing/unlock-to-learn/


Screenshots

Unlock trigger

Flashcard appears on device unlock

Correct answer

Answer correctly to proceed

App home screen

Deck collection view

Settings

Feature toggles and configuration