One download for every tier. The free version scans, benchmarks and scores with no time limit; a licence key unlocks the rest in place, with no reinstall.
The normal choice. Adds a Start menu entry.
Runs from a USB stick. Everything it stores lives beside the executable.
For deployment by policy across an estate.
SmartScreen flags installers it has not seen often yet. Choose More info then Run anyway.
This build is not yet code-signed, so the consent dialog will say
"unknown publisher" rather than naming us, and there is no signature to check. That is
expected for now and not a sign anything is wrong — but it does mean the only way to
confirm you have the file we published is the SHA-256 shown under each button. In
PowerShell: Get-FileHash .\Bottleneck-1.6.15-Setup.exe, and compare.
Open Settings → Licence, paste the key from your confirmation email and the additional features appear immediately. There is no sign-in and nothing is sent anywhere — the key is checked on your own machine.
Lost the email? Have your key sent again.
Perpetual licences from $9. No account, no subscription required.