```ruby
class ApGrapher < Cask
  url 'http://www.chimoosoft.com/downloads/current/APGrapher.dmg'
  homepage 'http://www.chimoosoft.com/products/apgrapher/'
  version 'latest'
  no_checksum
  link 'AP Grapher.app'
end
```

Update Ap-Grapher URL and Homepage
user
```ruby
class ApGrapher < Cask
  url 'https://www.macupdate.com/download/11859/APGrapher.dmg'
  homepage 'https://www.macupdate.com/app/mac/11859/ap-grapher'
  version 'latest'
  no_checksum
  link 'AP Grapher.app'
end
```
assistant