If you have ever wondered just how much to tip your server after a restaurant meal, this iPhone app is for you. Simply enter the total cost, use a five-star rating system to rate your service, then select the number of people (if you're splitting the cost). We like this app, but question whether people will pony up $1.95 for a 3-month subscription to use it. Register with Kudit to get a 15-minute free trial.
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