Lockdown Pro is the BEST AppLock & Private Gallery, it supports more than 30 languages.
Characteristics:
* AppLock: lock all applications.
* Private gallery: hide images, videos (image support .gif).
* Three password modes: Pattern Lock, Classic Lock & Calculator Lock.
* Fingerprint supported for Samsung devices and some devices running Android Marshmallow
* Smart lock: automatic lock / unlock with smart watch, car or use of wifi address, location.
Supported Android
{4.1 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)