Trains and buses, hospitals, etc., is a wake-up alarm app that can be used in places that do not put out the sound. If there is no earphone connection it is the vibration of the alarm. If there is an earphone connection, will alarm both of vibration and sound. Regardless of the terminal of the setting, you can always book the alarm of vibration.
Download the installation package of Silent alarm 4.0 that is completely free and have a look at users' reviews on Droid Informer. The app can be launched flawlessly on Android 4.0 and above. This download is completely secure. This application has been originally created by K-M-T-B.Lab and it is listed among the Lifestyle category.
The latest update of the tool was launched on Dec 21, 2017 and Silent alarm has been installed by over 10K users. Users rated the app 2.8 on Google Play. Adverts are a part of this application.