Highlights
+ Instant locking.
+ Easy to use.
+ Simple user interface.
+ Fully ad-free experience while using.
+ Ultra low power consumption. (Hardly ever! Really it's not lie)
Tutorial: https://youtu.be/alUXj2wc8uI

What can not this app do?
- This app can not unlock your screen.
- This app can not work with the fingerprint scanner.

Notes
- You will never see any ads while using the app.
- This app uses the device administrator permission.
- "DTTL" is the abbreviation of Double Tap To Lock.

How do you uninstall this app?
- Go to the security settings in the settings.
- Select device administrators.
- Deactivate to the Double Tap To Lock.
- Go to the apps in the settings.
- Find the Double Tap To Lock and uninstall it.
- We will miss you. :(
I would appreciate it if you comment on why you uninstall it.