Clever Ruler is a shareware. The unregistered version is used for trial purpose. Some functions in unregistered version can not be used.

1. To register it, run Clever Ruler, right click the ruler to show the menu, click menu item 'Help'->'Register...',


2. Click button 'Buy Now' in the new window to open the web page to buy it online.
We use Digital River Payment System for your payment.
( Founded in 1994, Digital River is a global leader in e-commerce outsourcing. SWREG, eMetix, RegNet, Register Now!, RegSoft, DigiBuy are examples of other Digital River companies. Symantec, Nokia, 3M, Autodesk, Novell are some companies that use services of Digital River. The security of this online purchase is as safe as it gets. )

3. After payment, please copy your Username showing in the register window

4. send it by email to: user@zcstar.com


We'll send you the Serial Number to register it within 24 hours.
After receiving the Serial Number sent by us, please open the register window, input it and click button 'OK' to complete registration.