Hey everyone, I’m [Justin](https://github.com/JuJu222/), the developer of **Throttlr**.

I use NetLimiter almost every day on Windows. It is especially useful when I’m downloading a large file in a browser or another app that has no built-in speed limit. I can cap that app instead of letting it consume my whole connection. It also helps me find background apps and services that suddenly start using bandwidth and slow everything else down.

When I started using a Mac, I couldn’t find anything that gave me the same straightforward per-app throttling capability. I eventually found and tried Snail, but in my experience the connection stuttered while throttling was active, especially during continuous downloads. That pushed me to build the Mac app I wanted to use myself.

Throttlr lets you:

* See live upload and download speeds for each app
* Set separate upload and download limits per app
* Block an app's network traffic completely
* View recent network activity
* Apply controls to one app or across internet and local-network traffic for the whole system

The main difference from firewall-focused Mac apps such as Little Snitch is that blocking is not the only option. If a browser is downloading a large file, for example, you can let the download continue at a lower speed while keeping enough bandwidth for calls, streaming, or other work.

Traffic processing happens on the Mac. Throttlr does not send browsing activity, traffic contents, or per-app network statistics to its servers.

It requires an Apple silicon Mac running **macOS 15 or newer**. It is available from the Mac App Store and as a signed and notarized direct download. Both versions have the same core Free and Pro features and can show signed background services after observing their traffic. Because of App Store sandbox restrictions, the Mac App Store version may ask you to quit an affected app manually before Throttlr reopens it. Purchases do not currently transfer between versions.

The Free tier provides per-app traffic monitoring without an expiration. Pro adds throttling and blocking for **$1.99/month, $19.99/year, or $39.99 lifetime**. Every eligible direct-download installation automatically starts a 14-day Pro trial on first launch after successful online activation, with no account or payment method required. On the Mac App Store, eligible Apple Accounts can also receive a 14-day introductory trial when starting the Monthly or Yearly plan, which you can cancel before the trial ends.

For this community, I also made two limited Lifetime discount codes. Both take **$10 off**, reducing the Lifetime price from **$39.99 to $29.99** until 15 September 2026:

* **Direct download:** use code **27U68IZ9** during checkout on the Throttlr website.
* **Mac App Store:** use offer code **RDDTLIFETHROTTLR** for the Lifetime purchase.

App Store: [https://apps.apple.com/app/id6796767230](https://apps.apple.com/app/id6796767230)

Website: [https://www.throttlr.app](https://www.throttlr.app)

I’d really appreciate your honest feedback. Thanks for checking it out!

I built Throttlr, a per-app bandwidth limiter for macOS