Internet Speed Meter is described as 'Lite displays your internet speed in status bar and shows the amount of data used in notification pane. This helps you to monitor network connection anytime while using your device'. There are more than 10 alternatives to Internet Speed Meter for a variety of platforms, including Online / Web-based, Windows, Android, Mac and Kindle Fire. The best alternative is Speedtest by Ookla, which is free. Other great apps like Internet Speed Meter are LibreSpeed (Free, Open Source), Speed Test Loggger (Free, Open Source), DownTester (Free) and Mobile Speed Test (Free).
Down Speed for macOS is here. See you current Download speed straight from your status bar, automatically updating between connection changes and at customisable time intervals...perfect for location hopping and remote workers alike.