The Pear Company is a parody of Apple, Inc. The Pear Company has shown up in many other shows by Dan Schneider, such as Henry Danger, Sam and Cat, Victorious, iCarly, Zoey 101, and Drake and Josh. While it is less mentioned in this series (the Pear logo wasn't shown at all), it was revealed that PearPads are used in Dirty Blob, where it is revealed that Double G has a PearPad with a case with his logo on it. In the last seasons of iCarly and Victorious, and in Sam & Cat, the characters used pear shaped products. Since Henry Danger the products aren't pear shaped anymore, they have only a Pear logo at the back.
PearPhones on Game Shakers are designed like Apple's iPhone 6.
The Game Shakers company seems to own many PearPads. As well they have an iPear on Kenzie's computer cart.