App Description

Top-most, click-through, translucent pixel grid lines guide your graphic creation; One-pixel x-y axis mode and split dividing mode make your design more accurate; Colorful overlay works over any full-screen app making it the best tool to have your job done.

This is the free version of our Grid Mask. Free is free, there is neither in-app purchase nor subscriptions. You can benefit from all features of the Grid Mask. Compared with the professional version, there is only ONE difference: When the topmost is locked, the overlay grid line will be blended with a watermark of the app name and version. We hope you like the idea of the app and make your job done with ease.

features v2.22
- fully resizeable mask, the whole window drag & move
- locked mask top-most, click-through, and guaranteed to work with any full-screen apps
- pixel mode accurate to one pixel for individual x and y axises
- divide the mask into any split areas with just a number type in
- grid line color and transparency can be freely customized for both lock and unlocked mask
- all adjustments are changed and displayed instantly

v2.22 -> v2.23
- watermark added to top-most locked grid lines
- free version disclaimer added


Startup Tips:
The use of Grid Mask is very straightforward. After starting, you can drag the body of the mask window to anywhere you want and resize it. One click of the Lock button will make it fixed there, inactivated, top-most, and click-through. You may consider it as a translucent coordinate sticker you put on your screen glass.

All configurations are there when you open the setting panel and all changes you made will be affected instantly on the grid overlay. Please be sure the width of the grid line is always ONE pixel, the one pixel will be calculated as 'included' in both modes.

Yes, we know you are always in full-screen mode, drawing, and gaming. :) This grid overlay can force itself to show in front of everything.

Finally, you may quit the app anytime and pick it up later just where you are.
BTW, if you need an outline of a picture to be in front of other apps instead of the grid lines, please consider our app named 'Overlay'.
Thank you for using Grid Mask and other apps from dragonBTV!

iPhone Screenshots

(click to enlarge)

Grid Mask Lite screenshot 1

App Changes

  • October 03, 2023 Initial release