Honest comparison
Blockr vs Little Snitch
Both install the same thing under the hood — a macOS network content-filter system extension that sees every outbound connection and can hold it until you decide. The difference is price, and how much analysis you need on top of the blocking.
Prices and features checked August 2026. Little Snitch’s own site is the authority on its side of this table.
Side by side
| Blockr | Little Snitch | |
|---|---|---|
| Price | Free for personal use · $5 one-time for commercial | $59 one-time (upgrades from $39) |
| Holds a new app's first connection | Yes | Yes |
| Per-app allow/block rules | Yes | Yes |
| Per-host rules with wildcards and ports | Yes — host rules outrank app rules | Yes |
| Live, searchable connection log | Yes — sortable, exports to CSV/JSON | Yes |
| Bandwidth charts and connection map | No | Yes — Network Monitor |
| Rule groups and profiles | No | Yes |
| Runs entirely on your Mac, no account | Yes | Yes |
| Signed and notarized by Apple | Yes | Yes |
Where Little Snitch is worth the $59
Little Snitch's Network Monitor is the real reason to buy it — live per-app bandwidth charts, historical graphs and a connection map that Blockr simply does not have. It also has mature rule groups and profiles, and two decades of development behind it. If you want to analyze your traffic rather than just control it, buy Little Snitch. Blockr is built for the narrower job: deciding what gets out, and keeping a readable record of it.
macOS only allows one network content filter to be active at a time, so Blockr and Little Snitch cannot both run at once.
Questions
- Is Blockr really free?
- Personal use is free forever — the full app, unlimited rules, no account and no trial timer. Commercial use is a one-time $5 per device.
- Does Blockr block as effectively as Little Snitch?
- For allow/block decisions, yes — both use the same macOS network content-filter mechanism, so the enforcement path is identical. The difference is in analysis and rule-management features, not in whether a connection gets stopped.
- Can I switch without losing my rules?
- There is no rule import. Blockr starts with a clean slate and learns as apps connect, so the first day or two involves answering alerts.
Blockr is free for personal use, runs entirely on your Mac, and needs no account.
Get Blockr — Free