Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
Gradelink - Gradelink is a one-stop-shop system for K-12 schools. You can see grades, attendance, tuition, admissions and communication in one place.
Mediamodifier - Create beautiful designs and product mockups in seconds.
QuickSchools - Fully online school management system. FREE 30-day trial. Sign up in 60 seconds. Track attendance, homework, gradebook, report cards, scheduler, parent portal and more!
mockDrop - Is a webapp for creating free device mockups including your screenshots.
Administrator's Plus - Cloud based student information management software