If your iPad2 is often used by others (or children), you can disable the use of APP Store applications through the "Restrictions" item under the "General" menu in "Settings" to prevent others from misoperation. Purchased a paid app.

iPad 2 is the second generation of Apple's iPad, released in March 2011 It was officially released on March 3 and launched in the United States on March 11. The biggest difference compared with the first generation is that iPad 2 will be thinner, lighter and have a front-facing camera, and will be sold in both black and white versions. Apple iPad 2 supports a variety of wireless communication standards, and can support Wi-Fi, UMTS, CDMA alone, optionally with 3G functionality, or a combination of the three. The iPad 2 uses a lighter carbon fiber material to replace the original brushed aluminum casing. According to data released by Apple, iPad 2 was launched in the United States on March 11, 2011, in 26 other countries on March 25, 2011, and in China on May 6, 2011.