Sign in and win is a sweepstake application, based on random selection of winners, and a great way to increase your fan base or reward your faithful customers. (For example: fill out entry form and get a chance to win great prizes!).
In order to gain access to your application users need to fill out entry form with basic data such as age and gender. Most important feature is the invoice number field, which allows you to ask your fans to enter required invoice number for prize winning games you organized in store.
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