Write notes and sketches using fingers or a stylus. Choose from five colors: black, red, blue, green, and pink. Save color selections with a bottom button. Draw on a blank canvas with smooth, multi-touch support.
by Kiyoshi Koike★ 2.52 ratingsProductivityFreeData updated 2026-09-08
Calculate and edit expressions with a -like interface. Add comments and corrections instantly. Share results or save calculations as notes. Supports multi-line input and basic arithmetic operations.
Leave quickly with one hand using on-screen buttons. Customize text , letter thickness, and background . Add from the lower screen edge or above the keyboard. No account required.
Arthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.
Adjust volume in real time
Adjust volume with a real-time slider. or lower audio in videos. Convert videos to silent or adjusted volume formats. videos without internet connection. Preview changes instantly on the screen.
Take handwritten notes with customizable pens, including Chinese-specific tools like a fountain pen and laser pointer. Create and organize notes in a whiteboard, notebook, PDF, mind map, or flashcards format. Sync and share notes across devices.
Create and review flashcards with swipe gestures to flip . Draw notes freely with finger or Apple Pencil. Hold to flip card over. Shake for random card. Swipe down to cancel or up to delete.
Play pranks or annoy friends with customizable loud sound effects. Choose from police , burglar alarms, ship , and truck . Save sounds as ringtone, notification, or alarm. Trigger sounds with a single button press.
Without touching the screen using the proximity sensor. Tap to increment, swipe left or right to decrement, and hold to reset. Multi-touch allows counting multiple times with separate fingers. Shake to generate a random number.
Customize appearance with background colors, GIFs, and pattern images. Adjust button colors, text, borders, and size. Access special characters and supports multiple languages. Does not collect user data.
Measure distances by dragging a finger across the map to calculate route lengths. Center on current location with the locator button. Clear routes by shaking, using the trash button, or dragging again.
Manage and organize music with folder creation, management, and drag-and-drop reordering. Add lyrics with alignment options and customize colors. Adjust text size, hide song details, and print PDFs. Share songs via AirDrop or text.
Track reading progress with visual charts and daily summaries. Set reading goals and receive reminders. Access verses, chapters, and book selections. Sync reading history across devices. Share progress with friends or groups.
Set with customizable music or nature sounds. View weather forecast and current conditions. Use flip or designer themes for time display. Activate built-in flashlight for lighting. Adjust brightness and set mode with soft sounds.
Track aircraft using real-time data from multiple air traffic sources. Display flight paths, altitudes, and speeds. Customize map views and set up alerts for specific aircraft. Connect to dump1090, tar1090, or Virtual Radar Server.
Create notes and drawings on a clean, minimal canvas. Annotate images or documents. Save or share content directly. Use a simple, intuitive interface for quick access. Perform basic drawing and text input without distractions.