手機電源鍵每天按幾十次？用 OFF 秒速鎖屏，一觸即鎖，減少實體按鍵磨耗，延長手機壽命。
1.免費且無廣告。2.勿需任何設定。3.點桌面圖示（或放桌面底下快捷列）就可一鍵鎖屏，點圖示後不需等螢幕暗下才進入休眠（我是設定「立即」）。4.鎖屏後可立即指紋解鎖，無任何延遲。5.手機內建的雙擊螢幕喚醒正常（我裝某些鎖屏app會變不正常）。6.手機重開機後一切都沒變（不用每次重開機都要設定有的沒的，很煩）。
找了半年，用過n個app，這個完全符合我的需求，有相見恨晚的感覺，實在很想給六星。
PS：無懸浮，無通知列鎖屏，無法變更圖示，無鎖屏音效或動畫等，以上這些功能對我來說也是多餘的。
好用的軟體，但是更新成1.8.62版本後，點秒速鎖屏+時，螢幕下方會顯示「秒速鎖屏+ 1.8.62」的文字，此時螢幕並非真正關閉，且無法使用指紋解鎖，需按實體按鍵才能關閉螢幕。
物理ボタンを押さずに、画面を消灯できます。
アイコンが銀色のバージョン1.8.38を使用中。操作はアイコンをタップで起動、（英語メッセージは無視して）黒い場所をタップ。これだけ。
アイコンをホームのど真ん中に置いておけば、簡単にスリープしてくれます。
Actually works!! Works after 5 seconds, only shows finger reader to get back in during that 5 sec timeframe, then shuts off screen for true device lock-screen thereafter. Perfect for Moto Z4 where the finger reader is inaccessibly beneath the screen without this app. I'd be pressing my power button every time without this app. Love it! Thanks developer.
Would love if you could add function to assign app as the phone assistant... then you could just hold home button to lock phone, saving a step!
I've tried a LOT of the screen-off apps (possibly most of them) including many of the paid apps, and this one is by far my favorite! My LG phone had this feature built in, called "knock off" — until I switched to a third-party launcher app. I really missed being able to turn my screen off without using the power button and without locking it. So I was thrilled when I finally found this app.
All of the other apps I tried automatically locked the screen, disabled the fingerprint sensor so I had to use my PIN to unlock the phone, or kept the faux black screen for a very long time before the screen timed out. This app temporarily lowers the screen time-out so the faux black screen only lasts a brief time before the screen times out.
The launcher app I use (Nova Launcher) allows me to set actions for various gestures, so I was able to configure the double-tap gesture to activate this app. Now, double-tapping on my home screen turns it off just like it did originally!
Android7辺りからでしょうか、アプリ等から画面オフにするとオンの時指紋認証できず、毎回パターンやパスワード、PINで解除しなければならずに不便でしたが、このアプリはランチャーのジェスチャー等から呼び出すと、それを回避して画面オフにできるのでとても重宝します。
今は、all-in-one-gesturesで戻るボタンの長押しでこのアプリを呼び出して画面オフにする事で、指紋認証のセキュリティ回避ができて快適です。