Pokémon GO can be played for free, but several of the most exciting gameplay options require that you pay a small fee for Pokécoins. For example, the Lure Module allows you to turn a Pokéstop into a place where everyone can easily catch Pokémon, and the Lucky Egg (seen above) will allow you to level faster, providing access to rarer Pokémon.
One way you can supply yourself with Google Play Credit to purchase Pokécoins is with an Android exclusive app called Google Opinion Rewards. This is a program created by Google to send users brief, simple surveys on a regular basis. Each survey rewards users with upward of 10 cents depending on the significance of the survey. After around five to seven surveys, you'll have enough to make your first free Pokécoins purchase.
Once installed through the Google Play store, you will be sent surveys every few days. Over time you will find yourself with extra Google Play Credit to spend. In the case of Pokémon GO, you can purchase a 100 Pokécoins package every two weeks or so.
You can check out the Google Opinion Rewards app here.
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