No$GBA is not available for Mac but there are some alternatives that runs on macOS with similar functionality. The most popular Mac alternative is 
RetroArch, which is both free and Open Source. If that doesn't suit you, our users have ranked 20 alternatives to No$GBA and eight of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to No$GBA are 
VisualBoyAdvance (Free, Open Source), 
higan (Free, Open Source), 
mGBA (Free, Open Source) and 
Nostlan (Free, Open Source).
Gameboy Advance / Nintendo DS Emulator. If you're looking for more info about No$GBA like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.
What is RetroArch? RetroArch is a modular multi-system emulator system that is designed to be fast, lightweight, and portable. It has features lacking in some emulators frontends, such as real-time rewinding and game-aware shading.
VisualBoyAdvance (VBA) is a free software (GNU GPL) emulator targeted for the Game Boy, Super Game Boy, Game Boy Color, and Game Boy Advance handheld game consoles sold by Nintendo.
higan was formerly known as bsnes. The project was renamed after becoming a multi-system emulator. higan is a Nintendo multi-system emulator that began development on 2004-10-14. It currently supports the following systems: Famicom Super Famicom Game Boy Game Boy Color Game Boy Advance Nintendo DS higan also supports the following subsystems: Super Game Boy BS-X Satellaview Sufami Turbo
mGBA is a new Game Boy Advance emulator written in C. The project started in April 2013 with the goal of being fast enough to run on lower end hardware than other emulators support, without sacrificing accuracy or portability. Even in the initial version, games generally play without problems. It is loosely based on the previous GBA.js emulator, although very little of GBA.js can still be seen in mGBA.
A front-end or user interface (UI) is the presentation and interaction layer of an app or website. Most modern emulator apps have basic game list UIs that you can interact with using a mouse/keyboard but not a game controller. Nostlan looks similar to media viewers like Kaleidescape and AppleTV. You can interact with it using a mouse or game controller. Unlike other popular front-end launchers for video game emulators, Nostlan has a minimalistic design that prioritizes box art, not metadata.
MESS emulates portable and console gaming systems, computer platforms and calculators. The project strives for accuracy and portability and therefore is not always the fastest emulator for any one particular system. MESS supports 231 unique systems with 738 total system variations and is constantly growing. The license would be open source if it wasn't for the "no commercial use" clause.
BoycottAdvance is a free and portable emulator for the Nintendo Gameboy Advance handheld. Program is available on Windows, Macintosh, BeOS, Linux, FreeBSD and there is even a Java port, playable online.
KiGB is the most accurate and free portable emulator for Gameboy, Gameboy Color and Super Gameboy for Windows, Linux and MS-DOS.
