Katter: Video to Flipbook Live

Katter turns your videos into flipbooks that look hand-drawn, like the pencil doodles in the corner of a school notebook. Pick a video and choose the part you want. Katter redraws every frame: your subject in bold, dark lines and the background in light pencil strokes. The lines and the paper shift a little from frame to frame, just like a real flipbook. You see the result as you edit, and when you're done, export it and share it straight to your favorite apps. HOW IT WORKS • Trim: choose up to 15 seconds of your video • FPS: 12, 8 or 4 frames per second for that choppy flipbook feel • Look: pick a drawing tool and a paper, then fine-tune with four sliders • Export: save to Photos or share in one tap DRAWING TOOLS AND PAPERS • Tools: pencil, crayon, ballpoint pen • Papers: notebook, sketchbook, sticky note • Sliders: line detail, color, background and wobble. Every combination works. FINDS YOUR SUBJECT ON YOUR DEVICE Katter finds the main subject in each frame with your phone's built-in image recognition and draws it in bold lines. The preview starts playing right away, and the subject gets bolder as each frame is ready. If no subject is found, the whole frame is sketched in light lines. MY CLIPS Your latest 20 exports stay in the app, so you can watch them again and share or save them anytime. PRIVATE BY DESIGN Subject detection and drawing happen entirely on your device. Your videos are never uploaded to our servers. No account needed, no ads. KATTER PRO Free: pencil on notebook paper, 720P export with the Katter logo. The sliders are free to use. Katter Pro unlocks every drawing tool and paper, 1080P export, and export without the logo. You can preview every Pro tool and paper for free. Katter Pro is an auto-renewing subscription, available monthly or annually (the annual plan includes a 3-day free trial for new subscribers). Payment is charged to your Apple ID / Google account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your account settings on the App Store / Google Play. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.nos-co.jp/apps/privacy/katter Available in English, Japanese, Korean, Chinese (Simplified and Traditional), Spanish and Portuguese.