```ruby
cask 'preferencecleaner' do
  version :latest
  sha256 :no_check

  url 'http://www.echomist.co.uk/software/downloads/PreferenceCleaner.dmg'
  name 'PreferenceCleaner'
  homepage 'http://www.echomist.co.uk/software/PreferenceCleaner.shtml'
  license :gratis

  app 'PreferenceCleaner.app'
end
```

Update preference cleaner home url.
user
```ruby
cask 'preferencecleaner' do
  version :latest
  sha256 :no_check

  url 'http://www.echomist.co.uk/software/downloads/PreferenceCleaner.dmg'
  name 'PreferenceCleaner'
  homepage 'http://www.echomist.co.uk/software/PreferenceCleaner.php'
  license :gratis

  app 'PreferenceCleaner.app'
end
```
assistant