Temporarily Disable Your Car with Your Smartphone: 5 Gadgets -
This App Locks Your Phone When You Need to Be Productive | Mental Floss
How to Passcode Lock an App on iPhone - MacRumors
iPhone trick lets you temporarily 'lock' touchscreen and childproof your phone - Mirror Online
Lock Me Out - App/Site Blocker - Apps on Google Play
How to set up, change, and remove a screen lock on an Android phone | Asurion - YouTube
How to Temporarily Disable Lock Screen Notifications for Apps in iOS 12
How to Easily Lock Any App on Your iPhone or iPad Behind Passcode or Biometric Authentication « iOS & iPhone :: Gadget Hacks
Use Guided Access with iPhone, iPad, and iPod touch - Apple Support
Is there an app that can lock my phone temporarily? I want to turn it into a 'dumbphone', essentially, that is only able to call and text for productivity purposes. - Quora
12 Best Focus Apps to Keep You off Your Phone - TechWiser
Best Parental Control Apps for Kid's Phone | Reviews by Wirecutter