Some people have reported a problem while installing LogrLite on Mavericks. The problem is that the GateKeeper sees that the programme is from an Unidentified developer and refuses to install it. Here’s what you can do:
After you have tried to run LogrLite and OS X’s GateKeeper told you it wouldn’t run it, go to System Preferences -> Security and Privacy, you will see a report about LogrLite being rejected to unpack and you will have the option to open it anyway:
So just click “Open Anyway” and it will unpack.