Crayon Maestro

[NEW] Added some selection options (like “Select All”) in Work in Progress (Gallery). Long-press the Multi-Select button or tap “Selected…” next to the buttons.
[NEW] Added “Reset to Default” button to the Scrollable Palette Area menu (to open that menu, scroll the palette to its beginning and tap the largest of the three buttons that appear).
[IMPROVED] Adjusted the spacing between the thumbnails in Work in Progress (Gallery).
[FIXED] Dismissing some types of alerts by tapping outside would sometimes block the drawing tools (for both touch and Apple Pencil).
[FIXED] A minor, rare user interface graphics glitch.
[FIXED] Pasting multiple files in Work in Progress (Gallery) did not always select all the imported pics.
[IMPROVED] (for devices with attached hardware keyboard) Minor changes/additions to the keyboard shortcuts in Work in Progress (Gallery), and the shortcuts for Copy, Paste, Duplicate now work with layers if the Layers stack is open.
[FIXED] Some issues when tapping to add to the selection while dragging the thumbnails in Work in Progress (Gallery).
[FIXED] Rotating the device could, in some very rare circumstances, cause the app to crash.
[IMPROVED] Tapping or long-pressing a dial could result in an unintentional adjustment (especially if using Apple Pencil).
[FIXED] Copy Layer was not always working properly.
[FIXED] Some minor multi-select issues in Work in Progress (Gallery).
[FIXED] A couple of drag & drop issues.
[FIXED] A very improbable crash bug.
[IMPROVED] A few minor things.

[NEW] Two-finger tap Undo. Added an alternative set of gestures (tap the Settings button and check/uncheck the “Use 2-Finger Tap Undo” setting) for those who prefer 2-finger tap Undo over 3-finger-swipe Undo.
[IMPROVED] Slightly less glare on the buttons.
[IMPROVED] Changed some of the bottom row buttons in “Work in Progress”.
[IMPROVED] Zoom Reset animation.
[FIXED] After editing the palette, a few of the colors would sometimes appear dimmed or translucent.
[FIXED] The picture would sometimes flicker when starting or switching to the app.
[FIXED] A few (potential) memory leak issues.
[FIXED] Some minor graphics glitches.
[FIXED] Improved stability.
[FIXED] Some minor Undo description issues.
[IMPROVED] Minor changes to some menus (Manual, Settings menu, Apple Pencil menu, Selected Picture menu, Layer menu, etc.)
[IMPROVED] Misc. additional things.
[FIXED] Misc. additional issues.

[NEW] Tool preview (in the tool menu).
[NEW] Drag & drop from/to other apps. Supported in both “Work in Progress” (Gallery) and Layers.
[NEW] Support for cross-device drag & drop via Universal Control.
[NEW] A new native file format named after the app. Supports thumbnails when exporting.
[NEW] Detailed undo/redo info.
[NEW] Picture-specific color palettes. You can now add new palettes, including ones that are specific to, and saved with, the current picture.
[NEW] (Pro) A new tool for sketching: Graphite Pencil.
[NEW] Some new tool settings in the tool menu: Texture Interaction (to make individual tools less or more affected by the paper/canvas texture), as well as specific adjustable parameters for some tools.
[NEW] Filled shapes (Drawing Mode). They can now be filled with strokes from the selected drawing tool.
[NEW] Tool button info. All tool buttons now display information and hints regarding that tool’s selected Color, Size, Force, Drawing Mode, and Tracing.
[NEW] Tap any control knob (Size, Force, Hue, Saturation, Brightness) to enlarge it, for easier use and more precision. Tap again to return to original size.
[NEW] Long-press on any control knob to open a menu with fixed values to choose from (e.g. "50%").
[IMPROVED] The three different parts of the scrollable palette area are now called “Quick Colors”, “Palette”, and “Named Colors”.
[NEW] (Pro) A new menu (mostly) for web developers, where you can adjust, copy & paste as hex color, can be found in the Current Color menu.
[IMPROVED] Drawing Mode (shapes/geometry) now has a variety of new options, and a preview.
[NEW] Layer button info. The layer button will display the selected layer’s opacity if it’s less than 100%, and indicate whether or not a Layer Channel Lock is in use.
[IMPROVED] The drag handles have been removed in Layers. Now, to rearrange the layers, just grab anywhere and drag (avoid the name field if using Apple Pencil).
[NEW] Rename layers. Tap its current name (or just start writing in the selected layer’s name box, if you use an Apple Pencil).
[IMPROVED] Redesigned menus.
[IMPROVED] Tapping outside a menu will now only close that menu, instead of also reusing the tap in the menu underneath (if any).
[FIXED] An issue that could cause the app to freeze, glitch, or block the user from entering “Work in Progress” (Gallery) in some cases.
[IMPROVED] Misc. changes and some new options in the palette’s options/settings menu.
[NEW] Tool Size Mode, to determine how the tool’s size is calculated.
[IMPROVED] The menu where you can decide which traits (e.g. Color, Size, etc.) are individual or shared by all tools has been simplified (Settings Menu -> Drawing Tools).
[IMPROVED] The algorithms for the drawing tools have been improved.
[IMPROVED] The selected tool is now more clearly marked.
[IMPROVED] The 2nd tool (when using Apple Pencil to control the 1st) is now marked.
[IMPROVED] When creating seamless patterns, it’s now possible to switch off the tiled view mode without switching back to normal (non-wrapped) drawing.
[IMPROVED] Some user interface changes, like color schemes, improved menus, etc.
[IMPROVED] Various additional things.
[IMPROVED] Some optimizations.
[FIXED] Improved stability.
[FIXED] Misc. additional issues.

[NEW] (Pro) Support for Universal Purchase. Your Pro Upgrade is now valid for iPad, iPhone, and Mac.
[IMPROVED] The paper/canvas texture preview is now showing an example brush stroke.
[IMPROVED] When adjusting the paper/canvas texture, all sliders will now affect the preview.
[IMPROVED] A few additions to the Recommended Paper/Canvas Colors.
[IMPROVED] Some things, like Undo/Redo for example, are now a bit faster.
[NEW] (Pro) A new tool called Void Patcher, that covers up transparent gaps (supports Apple Pencil tilt and pressure).
[FIXED] A minor issue with Dark Mode.
[FIXED] A couple of minor user interface glitches.
[IMPROVED] Misc. things.
[FIXED] Some image orientation issues.
[FIXED] Improved stability.
[FIXED] A few minor issues.

[IMPROVED] The picture’s paper/canvas texture can now be adjusted with sliders for Coarseness (Pro), Depth, Visibility, and a preview. Found under “Paper/Canvas Properties” when adding a new picture, or in the Layer Control under “Paper/Canvas”.
[IMPROVED] The app now remembers the last used size, color, and texture when creating a new picture.
[NEW] (Pro) Two new tools for adjusting contrast (both support Apple Pencil tilt and pressure).
[IMPROVED] If more than one menu is open, a tap outside no longer closes all menus, only the last.
[FIXED] A color issue on some older devices.
[IMPROVED] Misc. things.
[FIXED] A few minor issues.

[NEW] (Pro) Two new tools, Blur and Sharpen (both support Apple Pencil tilt and pressure).
[IMPROVED] You can now import layers from Files (in addition to Photos and Clipboard).
[IMPROVED] (Pro) Some improvements to the Photo Tracing feature, including a new Color Sampling Rate slider.
[FIXED] A few tools needed minor, subtle corrections.
[FIXED] Exported/shared pictures would sometimes have the wrong orientation (landscape/portrait).
[FIXED] A rare but critical stability issue.
[IMPROVED] The “Double-Tap Action” menu for Apple Pencil 2 has been slightly modified.
[IMPROVED] Some minor things.
[FIXED] A few minor issues.

[IMPROVED] The color palettes are now auto-saved more frequently.
[IMPROVED] Add, Delete, Paste, Duplicate, Import, Merge (Pro) Layer have all been optimized.
[FIXED] (Pro) Shapes now work as expected.
[FIXED] (Pro) Some issues with Move Layer.
[FIXED] Some issues with Undo and Redo in certain, rare situations.
[IMPROVED] A slight, hardly noticeable adjustment of how Apple Pencil pressure is handled.
[FIXED] Improved stability.

[NEW] Applying less/more of your fingertip when drawing will change the stroke size accordingly.
[NEW] Support for Dark Mode (Light, Dark Appearance).
[NEW] Swipe left/right with three fingers to Undo/Redo.
[NEW] Paper/canvas textures.
[IMPROVED] Completely new drawing engine.
[NEW] The toolbar automatically hides (or optionally, moves to the other side) when you draw near it.
[IMPROVED] The size of the toolbar can now be adjusted with a slider (Settings button -> Toolbar -> Toolbar Size).
[NEW] You can now choose which drawing tool you want a tool button to have by tapping the selected tool. You are allowed to have multiple instances of the same tool, which can be very useful since they have different settings and color.
[NEW] Some new drawing tools.
[IMPROVED] Some new and improved features in the color palette, including drag to rearrange.
[NEW] Encyclopedia of named colors, accessible from the Current Color menu and the buttons at the end of the palette.
[IMPROVED] You can now rearrange the pictures in “Work in Progress” by long-pressing and moving to a new position.
[IMPROVED] You can now long-press on any picture in “Work in Progress” to bring up a menu with a culled list of options.
[IMPROVED] The support for Apple Pencil and Apple Pencil 2.
[NEW] A Settings button next to the Layers button.
[NEW] Some added customizations and settings.
[NEW] Some customizations and settings, found in the new Settings button next to the Layers button.
[NEW] Help/Tip messages will appear from time to time.
[NEW] Seamless Pattern Editing mode that lets you display the picture as tiles next to each other. You’re free to draw anywhere on these tiles, so you can easily create seamless patterns for use as website or desktop backgrounds, in print, or for textures in 3d modelling. Toggle this feature on/off in “Work in Progress”, in the menu that comes up when you tap the “…” button.
[FIXED] The app would fail to open on some devices running certain versions of iOS/iPadOS.
[NEW] Various other things.
[IMPROVED] Lots of other improvements.
[FIXED] A number of minor and major issues.

[NEW] Support for the new iPad Pro.
[NEW] The double-tap feature of the new Apple Pencil (2nd generation) is now fully supported.
[IMPROVED] New user interface.
[IMPROVED] Everything should now be considerably faster, thanks to Metal.
[NEW] The app has been completely redesigned and rewritten in Swift, and the engine is now based on Metal.
[NEW] More export options (AirDrop, iCloud, other apps etc.).
[NEW] Import from Files (including iCloud).
[NEW] You can now switch between Light and Dark user interface in the app (tap Current Color, then “View & Toolbar Options” -> “Appearance”).
[IMPROVED] The color palette is now scrollable, and you can adjust hue, saturation, and brightness.
[IMPROVED] The palette now has customizable sections, which can be viewed as colors, shades, or analogues. Long-press on a color to edit.
[IMPROVED] The size and force of the selected tool can now be adjusted continuously using control knobs.
[IMPROVED] The color adjustments, as well as size and force, can now be done in real-time while drawing!
[IMPROVED] In addition to zooming and panning, rotation is now supported.
[IMPROVED] When using Apple Pencil, you can now assign a different tool (e.g. Smudge or Eraser) to the finger by tapping twice on a tool and selecting the option “Use as 2nd Tool”. A similar feature existed before, but it’s now more intuitive.
[IMPROVED] Wide Color support.
[IMPROVED] Lots of additional things.
[FIXED] Some bugs.

[BUG FIX] Some common actions, such as adding a new layer, or changing the background color, could cause the app to crash.

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[NEW FEATURE] Flip the picture horizontally or vertically.
[NEW FEATURE] Copy and Paste layer.
[BUG FIX] The app will now correctly remember the export file format you select.
[BUG FIX] Pasting a very large image could sometimes fail without displaying an alert (and there was also a chance of crashing).
[OTHER] Some minor changes and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[NEW FEATURE] Copy and Paste pictures between this app and others, even across devices (e.g. from iPad app to Mac app). If both apps are from us, all layers and data will be preserved. The Copy and Paste buttons can be found in the Work in Progress screen (note that the Paste button will only appear if you have an image to paste).
[IMPROVEMENT] New manual chapter on how to copy and paste a picture between two devices.
[IMPROVEMENT] Changed some wordings, for improved clarity.
[BUG FIX] A couple of potential crash bugs.

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[NEW FEATURE] Layer Opacity. To find the new slider, open the Layer Control, then press the layer's thumbnail.
[IMPROVEMENT] The tracing feature, found in the Selected Color menu, now has a slider to adjust how much (if any) the selected color should tint the color that's being picked up from the layer beneath.
[IMPROVEMENT] Instead of the app refusing to add a new layer when insufficient memory, you are now asked if you want to resize the picture to make room for the new layer.
[OTHER] Misc. other improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[NEW FEATURE] Trace Layer Beneath: Quickly create a sketch from a photo. Toggle on/off in the Selected Color menu (press the selected color).
[IMPROVEMENT] New manual chapter covering the Trace Layer Beneath feature.
[OTHER] Misc. other improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[IMPROVEMENT] Some redesigned dialogs and menus.
[IMPROVEMENT] The Rate/Review button and the Website button can now be found in the Settings menu.
[BUG FIX] Exported images could end up with the wrong orientation (landscape instead of portrait).
[BUG FIX] The issue with too small color samples was only corrected for iOS 10, not iOS 9, in the last update.
[OTHER] Misc. other improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[NEW FEATURE] A conventional Layer Control, with thumbnails and options, will now open when you tap the layer button.
[IMPROVEMENT] Depending on hardware, and image size, you're in most cases no longer restricted to 3 layers. (Pro)
[IMPROVEMENT] The color samples in the color menus are now larger.
[OTHER] Misc. other improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[IMPROVEMENT] Redesigned menus.
[OTHER] Misc. other improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[BUG FIX] Under certain circumstances, exporting for the first time after downloading the app would fail.
[IMPROVEMENT] Some optimizations.

Please remember to update your App Store review/rating.
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[IMPROVEMENT] Zooming and panning are now faster and smoother.
[NEW FEATURE] Apple Pencil support. Full support for tilt, pressure, as well as the ability to have different actions for the Pencil and the finger.
[NEW FEATURE] Optional Eyedropper button. (Pro)
[NEW FEATURE] Group-Pick options in the Selected Color menu.
[NEW FEATURE] Support for pressure-sensitive iPhone screens (3D Touch).
[IMPROVEMENT] Slightly improved precision when drawing.
[IMPROVEMENT] Using the Smudge tool over the paper edges is now handled better.
[IMPROVEMENT] Added one more pressure/weight button.
[IMPROVEMENT] The tool settings (e.g. size or color) are now individual per tool by default (this behaviour is optional, in case you prefer the same settings for all tools).
[IMPROVEMENT] (iPad) Added 1 additional color set, and each color set now has more colors.
[IMPROVEMENT] Improved algorithms for the tools.
[IMPROVEMENT] The Named Color Set has been improved and now has more options available for the selected color.
[IMPROVEMENT] The app now (automatically) saves more frequently, to minimize the chance of losing your work (under extraordinary circumstances, such as a crash).
[IMPROVEMENT] The brush stroke/path algorithm has been improved.
[IMPROVEMENT] The brush algorithm for the smaller sizes has been improved.
[IMPROVEMENT] New export options, including "Transparent PNG".
[IMPROVEMENT] Improved stability.
[BUG FIX] The Smudge tool (and to some extent, a few others) had a bug.
[BUG FIX] A rare bug had the potential to cause the app to freeze.
[BUG FIX] The message that appears when pressing a grayed out Undo or Redo button often failed to disappear.
[BUG FIX] Fixed a couple of potential crash bugs.
[OTHER] Misc. other improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[BUG FIX] The background/paper color was not exported properly.
[BUG FIX] The Eraser tool button could disappear under certain circumstances.

Previous Update:
[NEW FEATURE] Pattern Edit Mode (horizontally and/or vertically) that displays your drawing as tiles next to each other. You're free to draw anywhere on these tiles, so you can easily create seamless patterns for use as website/desktop backgrounds, in print, or for textures in 3d modelling. You can toggle this feature on/off in the Drawing menu. If you don't see the tiles, you may need to zoom out! (Pro)
[IMPROVEMENT] The ads have been removed. (Free)
[IMPROVEMENT] Added a new manual chapter describing the Seamless Pattern Editing.
[IMPROVEMENT] Slightly faster drawing tools.
[OTHER] Minor improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[NEW FEATURE] Pattern Edit Mode (horizontally and/or vertically) that displays your drawing as tiles next to each other. You're free to draw anywhere on these tiles, so you can easily create seamless patterns for use as website/desktop backgrounds, in print, or for textures in 3d modelling. You can toggle this feature on/off in the Drawing menu. If you don't see the tiles, you may need to zoom out! (Pro)
[IMPROVEMENT] The ads have been removed. (Free)
[IMPROVEMENT] Added a new manual chapter describing the Seamless Pattern Editing.
[IMPROVEMENT] Slightly faster drawing tools.
[OTHER] Minor improvements and bug fixes.

Please remember to update your App Store review/rating.
We'd love to hear what you think!

[Pro] More paper/background colors to choose from.
[Pro] You can now choose a different image size when tapping 'New'.
Some bug fixes and minor improvements.

Scale and Adjust Size (Pro).
It's now optional whether the app crops imported photos to fit the screen (default) or not.
Improved precision when tapping buttons etc.
Various improvements and bug fixes.

Improved stability.
Minor improvements and bug fixes.

You can now export your work in a way that preserves all data (layers etc), for archiving or for importing into any of our art apps (even to/from the Mac versions).
Improved stability.
Fixed a bug that would sometimes cause the first touch input of the session to be ignored.
Added manual chapters about importing/exporting using our native file format.
Some minor improvements and bug fixes.

Fixed a serious bug that could delete your internally stored drawings.
If you were affected by this, please accept our apologies.

--- THE PREVIOUS UPDATE ---
The drawings now have a higher resolution (4 times as many pixels) on all devices with Retina screens.
Since that means the app needs to process 4 times the data it used to, we obviously needed to make things faster.
We have optimized as much as humanly possible, with assembler code and improved use of multiple CPU cores.
Some parts of the app will actually run faster than before, but on some older Retina devices other parts might be a bit slower.
We will continue to optimize even more, so please bear with us.
The stored drawings (Work in Progress) now take up less storage space, despite the higher resolution (they will not be re-saved until you select them, so it might be a good idea to cycle through them).
Added a new Eyedropper tool (Pro feature, found in the menu that appears when you tap a 2nd time on the selected color).
Brush strokes initiated immediately after one another will now share the same Undo step.
When the toolbar automatically hides (by drawing near it) it is now gone for a slightly longer time, to facilitate drawing with quickly repeated brush strokes.
New animated "Please Wait" messages.
After clearing the drawing or one of its layers, the app now automatically switches to the last used drawing tool (if needed), since there's absolutely no use for e.g. an Eraser on a blank drawing.
(Pro) You can now Swap the selected layer with any other layer, instead of just the layer directly above/below.
Added new 'Move Layer in Stack' (Pro) feature.
The drawing engine has been optimized in various ways.
Some improvements to make the app compatible with iPad Pro.
Swiping along the toolbar to minimize it is now an optional feature (default is 'off').
Fixed some minor memory leaks.
Fixed a bug that could make the 'Change Layer' button temporarily show the wrong icon if pressed repeatedly.
Some additional minor bug fixes, improvements and optimizations.

The drawings now have a higher resolution (4 times as many pixels) on all devices with Retina screens.
Since that means the app needs to process 4 times the data it used to, we obviously needed to make things faster.
We have optimized as much as humanly possible, with assembler code and improved use of multiple CPU cores.
Some parts of the app will actually run faster than before, but on some older Retina devices other parts might be a bit slower.
We will continue to optimize even more, so please bear with us.
The stored drawings (Work in Progress) now take up less storage space, despite the higher resolution (they will not be re-saved until you select them, so it might be a good idea to cycle through them).
Added a new Eyedropper tool (Pro feature, found in the menu that appears when you tap a 2nd time on the selected color).
Brush strokes initiated immediately after one another will now share the same Undo step.
When the toolbar automatically hides (by drawing near it) it is now gone for a slightly longer time, to facilitate drawing with quickly repeated brush strokes.
New animated "Please Wait" messages.
After clearing the drawing or one of its layers, the app now automatically switches to the last used drawing tool (if needed), since there's absolutely no use for e.g. an Eraser on a blank drawing.
(Pro) You can now Swap the selected layer with any other layer, instead of just the layer directly above/below.
Added new 'Move Layer in Stack' (Pro) feature.
The drawing engine has been optimized in various ways.
Some improvements to make the app compatible with iPad Pro.
Swiping along the toolbar to minimize it is now an optional feature (default is 'off').
Fixed some minor memory leaks.
Fixed a bug that could make the 'Change Layer' button temporarily show the wrong icon if pressed repeatedly.
Some additional minor bug fixes, improvements and optimizations.

Redesigned user interface, with fewer non-drawing related buttons in the toolbar.
There is now a Work in Progress screen (tap the easel button) where you can access all your work by tapping their respective thumbnails.
In the Work in Progress screen, you can also find options and operations for the current drawing and its layers, export, preferences, manual etc.
More colors in the color sets/palettes.
Tap twice on the eraser and you will be asked if you want to clear the drawing or the current layer.
Added optional 'Hide Other Layers' button, which toggles between viewing all layers and just the one you're working on.
(To switch it on, open the Work in Progress screen and check the last option found in Settings->Toolbar.)
Various improvements and optimizations.
Improved stability.
Some critical and some minor bug fixes.

A major update with lots of new features, improvements and bug fixes.