Flex Ruler is a simple desktop ruler.

・You can customize your ruler color and transparency.
・Enlarge pixel point with Loupe window.

What's New

Version 2.3

Bug Fix.

Ratings and Reviews

Works well - the ticks are a little hard to see for pixel-perfect work


Works well, could use an enhancement for detailed measuring.

It’s especially hard with very small distances, where the horizontal & vertical rulers mesh. Even with the loupe, you can’t really tell if you’re 12 or 13 pixels over, and even outside the mesh point, say 202 vs 203 is hard to judge since you’re visually somewhere between the 200 and 205 tick marks. It’d be nice if it tracked my mouse pointer and showed a tick and the exact pixel value my mouse is along the ruler. Show “203” if that’s my mouse position.

The “Guide” (full screen ruler) only shows on your primary display. While you can drop bright blue lines from the Guide, this features suffers from the same problem as above - you can’t tell exactly what pixel the line is on.



Works nice. Very simply and easy to use .. yupu must got to the app and in the apps menu and choose new to get a ruler to show up — a but confusing at first — you shoudl be able to do this via the menu bar icon.

Doesn’t show a ruler at all

I need stuff that works

I have had it for a week or so, but now I can’t get it to pop up? Tried to go to support but that seems to be just an ad. What am I missing? An app doesn’t do any good if it doesn’t work and there is no support. I would have preferred to first work with support but I couldn’t find any


Seiichi Kohira
629.6 KB
Age Rating
Rated 4+
© 2013


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.