LagsmithFAQ
Does Lagsmith slow down my whole Mac?
No. Only the apps you pick. Everything else stays at full speed.
Does it work with the iOS Simulator?
Yes, per app and even per simulator device.
Does it work on a physical iPhone?
No. Lagsmith works on Mac apps and iOS Simulator apps. On a physical device, use Network Link Conditioner in Settings › Developer.
Do I need certificates or proxy settings?
No.
Why does it need a network extension?
A network extension is how macOS lets an app control network traffic. macOS asks you to allow it once.
Which macOS versions are supported?
macOS 13 Ventura or later, on Apple silicon and Intel.
Does Lagsmith send my data anywhere?
No. Everything runs locally, there is no account and the app has no analytics.
What does the free version include?
Watch any app, see its last 50 requests and its connections, and slow it down with the Edge preset.
Can I use Lagsmith alongside Network Link Conditioner?
Yes, but if Network Link Conditioner is on it slows down the whole Mac, including apps Lagsmith leaves alone.