Windows 7 or higher, including Windows 10 & Windows 11
Current version Adobe Reader
100 MB Available Disk Space
512 MB RAM
Mac OS X 10.6 for Intel-based Mac or higher, including Sierra & Mojave.
Checkmark Programs are not compatible with MacOS 10.15 (Catalina) and MacOS 11 (Big Sur).
(Note: We recommend that you to keep a dedicated computer with MacOS 10.14 for Checkmark programs to run efficiently. We are in the final stages of testing and releasing the Catalina/Big Sur-compatible (64-bit) CheckMark programs soon. Until the release, we recommend that you don’t update to Catalina/Big Sur on any Mac you use with our programs. We thank you for your continued patience and continued patronage to CheckMark, Inc.)