SignalCheck allows users to check the true signal strength of their connections. Unlike standard Android signal bars, which often only show voice signal strength, SignalCheck shows you detailed signal information about all connections on your device, including 5G-NR, LTE (4G), 1xRTT CDMA, EV-DO / eHRPD, HSPA, HSDPA, HSPA +, HSDPA, HSUPA and other GSM / WCDMA technologies. Data about your current Wi-Fi connection is also displayed, including signal strength, SSID, link speed, and IP address. SignalCheck will display LTE cell ID information on most devices running Android 4.2 or higher, and some HTC devices running earlier versions of Android. SignalCheck was one of the first (if not the first) Android apps to provide this information to users. LTE frequency and band information is available on Android 7+ compatible devices.
Required Android Versions : Ice Cream Sandwich [4.0.3–4.0.4] - Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]