Kilobat vs LuLu
A LuLu alternative for Mac.
LuLu is a free, open-source firewall that alerts you to outgoing connections and lets you allow or block each process. Here is how Kilobat compares.
brew install seifip/kilobat/kilobat- Free forever
- Pro $19 once
- 14-day refunds
- macOS 14+
- Open-source CLI
Side by side
| Job | LuLu | Kilobat |
|---|---|---|
| Outgoing connection alerts | ✓ | — |
| Per-app blocking | ✓ | ✓ Pro |
| Live traffic by app | — | ✓ Free |
| Profiles and data budgets | — | ✓ Pro |
| Wi-Fi diagnosis and speed tests | — | ✓ |
| Price | Free, open source | Free; Pro $19 once |
LuLu details are from Objective-See’s own documentation, as of October 2026; we haven’t benchmarked it. Corrections welcome at the support address.
Which should you choose?
Choose LuLu if
- You want a free firewall that asks about each new outgoing connection.
Choose Kilobat if
- You want monitoring and profiles instead of prompts, plus Wi-Fi and speed diagnostics.
Pricing
See LuLu’s site for current pricing. Kilobat is free, with Pro for $19 once.
Get your network out of the dark.
brew install seifip/kilobat/kilobat