iSnap is described as 'Managing the windows on your computer has become a snap! With the iSnap app, you can organize various windows to fit perfectly on your screen and access them simultaneously!' and is an app in the OS & Utilities category. There are more than 25 alternatives to iSnap for a variety of platforms, including Mac, Windows, Android, PortableApps.com and Windows Explorer. The best alternative is AquaSnap, which is free. Other great apps like iSnap are WindowGrid (Free), Rectangle (Free, Open Source), BetterTouchTool (Paid) and altdrag (Free, Open Source).
BetterSnapTool is a utility that mimics Windows 7 Aero snap, allowing you to easily manage your window positions and sizes by either dragging them to one of your screens corners or to the top, left or right side of your screen.
HyperDock adds Windows 7 like features and more to Mac OS X. Select individual application windows & tabs just by moving the mouse on a dock item, use mouse clicks to quickly open new windows and many more.
KDE Mover-Sizer is a lightweight program enabling KDE-style alt-click moving and resizing for Windows XP, 7, 2000, 2003, Windows Server, and Vista. It is a background application that emulates the behaviour of KDE, which is a rather good Linux desktop environment.
ActiveDock - Alternative Dock for macOS, Apple Dock replacement Customizable Dock for macOS, Application Launcher,Window Manager/Window Switcher, Star Menu for Mac… Problem: Apple Dock is the command center for your Mac.
reSizer is a system utility that enables keyboard shortcuts to focus, move, resize and change other window properties in a fast and intuitive way without even touching the mouse. Features: Keyboard shortcuts for moving and resizing active windows.