Your personalized Home Button App Launcher
★ On devices with Android 6 or newer the app opens through «Home Button Long Click», as an alternative to Google Now. You need to configure your "Assist" app manually, see here:
★ On Android 4.x and Android 5.x the app is opened through «Home Button Swipe Up», as shown in the linked video. Note this only works properly on devices with three software buttons, e.g. Nexus phones. Samsung phones are poorly or not at all supported.
★ This app is ad-free and open source

→ Test this app if you're looking for a simple app launcher alternative to «Wave Launcher», «SwipePad», «Smart Taskbar» or «Sidebar», or if you want to replace the default «Google Now» home button binding
→ Also check out Home Button Launcher Tools, this integrates nicely into Home Button Launcher

Source code is hosted here:
From version Home Button Launcher 6.1:
Use "storage access framework" for settings backup & restore ("storage read/write" permission no longer needed)
(Android 5.0+)
Latest: 5.3 on May 13, 2018
(Android 6.0+)
Latest: 6.1 on April 7, 2019
(Android 8.0+)
Latest: 6.1 on April 5, 2019
All versions