Install Loupe.

Two paths land you in the same place — an email with a download link.

• Pricing → pick a tier (Single $79, Team $149, Site $499) → Paddle checkout
• Start free trial → sign in with Google, Microsoft, Apple, or email magic link → 14-day full-feature trial

Either way, you'll receive an email within a minute containing the DMG download link and a separate activation link. Both are tied to the email address you signed in with.

Click the download link in the email. The DMG (~25 MB) downloads to ~/Downloads. Double-click Loupe.dmg to mount it. A standard install window opens with Loupe.app on the left and an Applications shortcut on the right.

Drag Loupe.app onto the Applications shortcut. Wait for the copy to finish, then eject the DMG (right-click → Eject, or drag it to the trash).

Loupe is Developer-ID signed and notarized by Apple — the strongest signing tier outside the Mac App Store. The first time you launch it, macOS will still want a deliberate acknowledgment because it didn't come from the App Store.

• Open Finder → Applications → right-click Loupe.app → Open
• In the dialog that appears, click Open again

Loupe launches into the unactivated state — a clean window with a single “Activate Loupe” call to action. No features are gated yet; you just need to hand it the activation envelope from your email.

After this first right-click open, every subsequent launch works from a normal double-click — Gatekeeper remembers your decision per-app.

Auditors and security-review teams: confirm the bundle came from us before launching it. From a terminal:

# Confirm Apple Developer Team 5UF3Q334K6 + notarization
codesign -dv --verbose=4 /Applications/Loupe.app

# Confirm Gatekeeper acceptance
spctl -a -t execute -vvv /Applications/Loupe.app

# Confirm no network entitlement (defense in depth)
codesign -d --entitlements - /Applications/Loupe.app | grep -c network

The third command should print 0 — Loupe has no network entitlement, so the OS itself prevents the app from making network calls regardless of code.

Back in your inbox, find the email with “Activate Loupe” in the subject. The activation link looks like:

loupe://activate?envelope=eyJ2IjoxLCJ0aWVyIjoic2luZ2xlIi…

Click it. macOS hands the URL to Loupe.app via the registered loupe:// scheme. Loupe verifies the Ed25519 signature against the public key embedded in the build, checks the issuance window, and transitions to the activated state.

Curious about the signature scheme? See the activation envelope wire format.

Loupe is now ready. Drag any log file onto the window — syslog, nginx access, JSONL, an .eml thread, or a .pcap capture if you have tshark installed. Loupe creates a case automatically and starts ingesting.

For a guided first investigation, walk through the database outage flow — the canonical four-source case Loupe was built for.