Amazing Sketch Book is a painting app designed exclusively for the iPhone, iPod touch, and iPad. Rewritten from the ground up,Amazing Sketch Book is universal — the same version runs on both your iPhone and your iPad. Move paintings between your devices and keep working wherever you go!

An accelerated OpenGL-based painting engine makes painting incredibly smooth and responsive — even with huge brush sizes. Amazing Sketch Book also records every step in your painting. Show off your creative process by replaying your paintings directly on your device.


General Features:
– Create paintings with dimensions up to 2048x2048 (1024x1024 on older hardware)
– Full support for all Retina devices
– Background autosave
– Unlimited undo and redo
– Simple and approachable interface

Painting:
– Full screen painting
– Record and replay paintings
– Ultrafast OpenGL-based painting engine
– Huge brush sizes up to 512x512 pixels
– Simulated pressure
– 64-bit painting on the latest hardware
– 14 parameterized brush shapes
– Adjustable brush settings (spacing, jitter, scatter, etc.)
– Adjustable color opacity
– Invert color and desaturate
– Flip and arbitrarily transform layers
– Adjustable color balance (iPad only)
– Adjustable hue, saturation and brightness (iPad only)

Import and Export:
– Integrated with Dropbox
– Import native Brushes 3 files, JPEG, and PNG files
– Export as native Brushes 3 files, JPEG, PNG, and Photoshop files (with layers)
– Place images from your photo album into paintings
– Copy paintings to the pasteboard
– Tweet paintings
– Post paintings to Facebook (iOS 6 only)

Gestures:
– Zoom with two finger pinch
– Zoom in with two finger double tap
– Zoom to fit with two finger double tap
– Toggle interface visibility with a single tap (this can be changed to a two finger tap in the app settings)
– Tap and hold to access eyedropper tool