Create custom sets with unlimited options after upgrading. Color-code flashcards for visual organization. Generate flashcards from notes or topics using AI. Review with spaced repetition and track progress over time.
Generate tones for phone numbers, special characters, and pauses. Tap or hold keys to produce accurate tones. Watch digits highlight during playback for precise control. Manage tone sequences and control calls externally.
Scan banknotes to identify their value and year. View security features to recognize genuine currency. Browse banknotes by country and explore detailed security information.
