For persistent notifications Android 8+ is required. For normal notifications, is required 4.4+ Android. video tutorial.
For applications that are not built for Android Oreo or above, you can change the settings a lot more than in the regular system options, such as importance, sound, vibration, etc.
Manage notification categories for third-party applications and snooze notifications
Try the full application for free and unlock the full version to get all the features after the 7 days are up.
Supported Android
{4.0.3 and UP}
Supported Android Version:-
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)
Download AutoNotification Full 3.9.6b Unlocked APK For Android