I use
StatCounter Free invisible Web tracker, Hit counter and Web stats It's free if you only want to save the last 500 page loads in detail. It saves all your data on page loads and unique visitor numbers: but the detailed analysis is only for the last 500. If you want detail for more than this you can pay for it. Sorry, this is sounding like a commercial and I'm not affiliated with them, I'm just a happy customer.
It seems pretty reliable and it's a darn sight easier to use than Google analytics.