Calm - Calm.com can help you reduce stress and increase calm.
Headspace - Meditation made simple. Brilliant things happen in calm minds.
Plum Village - Free mindfulness app w/ Zen Buddhist meditations + teachings
Calmind - Be smarter, less stressed, and healthier—just by listening!
Meditation Studio - Curated collections of guided meditations
MindF*** - It’s like Headspace but with occasional profanity 🙉