What it does: With all the fear and loathing about iOS apps in this slideshow, we'd like to end on a positive note. You'd think that Kindle, the popular reading app from Amazon, would be a prime candidate for personal data grabs. But Kindle's security profile scored very well in Appthority's testing.
Why it's safe:
• App does what it's supposed to do without hidden requests, data collection or functions.
• Links to the Security framework, which provides access to security facilities including the keychain.
• Encrypts all data, both incoming and outgoing.