Apps like Duo Mono

Here are some great alternatives to Duo Mono by Octathorp :
Screen Off Timeout
Screen Off Timeout
★4.3
Screen Off and Lock
Screen Off and Lock
★3.9
Turn Off Screen
Turn Off Screen
★3.5
KinScreen: Screen Control
KinScreen: Screen Control
★3.9
One Button Navigation Bar
One Button Navigation Bar
★4.1
Stay Awake - Keep Screen On
Stay Awake - Keep Screen On
★4.3
Double Tap
Double Tap
★3.5
SL Screen Off plugin
SL Screen Off plugin
★3.9
Video screen off: Screen Sleep
Video screen off: Screen Sleep
★4.0
Double Tap Screen Off / Lock
Double Tap Screen Off / Lock
★4.6
Gravity Screen - On/Off
Gravity Screen - On/Off
★3.9
Keep Screen On
Keep Screen On
★3.7
Double Tap Off
Double Tap Off
★3.5
Screen off
Screen off
★3.9
Sleep Screen
Sleep Screen
★3.4
Screen Off
Screen Off
★4.2