If you like variety, this is definitely the app for you. Insight Timer has thousands of guided meditations — and they're all free. You can browse the list of meditations based on topic, practice, time length, and even teacher. According to the app, new content is being added daily, so there's no need to worry about running out of sessions. You can also choose your specifications through the filter tab. Have only 15 minutes? Feel more comfortable with a female instructor? Want the rushing river in the background? Prefer to eliminate religious and spiritual content? You have the power to change and alter what you want during your "me time." And if you'd rather practice unguided meditation, this app has that, too.