[psnehanshu]

WhatsApp doesn't have a persistent notification though.

> when the phone starts the user has to first start the app though

Just tested this and this is not the case with WhatsApp. I am on a Samsung and I am not sure if WhatsApp get's any special treatment.

[pas]

ah, I probably misunderstood the context. KeePass2Android does this to prevent Android from putting it to "sleep", which leads to the in-memory unlocked DB getting unloaded.