With this app, you can get a good idea of cell and WiFi signal strength and find out which corners of your office or home have the best reception. Very few phones do not fully meet the signal reporting standard, especially when it comes to 5G / dual SIM. If the signal strength does not update, it is a sure sign of a broken ROM and not a problem with the app.
Supported Android
{4.0 and UP}
Supported Android Version:-
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) – Pie (9.0)