Polar*Aligner is a simple astronomical application that helps you to easily align your mount. It includes basic tools for leveling your equatorial mount (spirit level) and for adjusting it to the north (compass). You can now calibrate your spirit level with a real level and get the highest accuracy for a smartphone.
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)