There are many alternatives to Bandwidth+ for Mac if you are looking for a replacement. The best Mac alternative is NetWorx. It's not free, so if you're looking for a free alternative, you could try BitMeter OS. If that doesn't suit you, our users have ranked more than 25 alternatives to Bandwidth+ and three of them are available for Mac so hopefully you can find a suitable replacement.
NetWorx is a simple, yet versatile and powerful tool that helps you objectively evaluate your bandwidth consumption situation. You can use it to collect bandwidth usage data and measure the speed of your Internet or any other network connections.