Is "Display over other apps" permission safe?
You install an app and it asks you to turn on "Display over other apps." The name alone sounds alarming.
Here's the most important part first: an app cannot turn this on by itself. It only switches on when you flip it by hand in Settings.
Below is what it can do, what it can't, and what actually deserves your attention.
How it differs from a normal permission
A normal permission is a pop-up: the app asks, you tap Allow, done. This one is different. Android files it under special access, on its own screen, on purpose.
| Normal permission (camera, mic) | Display over other apps | |
|---|---|---|
| How it turns on | Tap "Allow" in the app's pop-up | Open a Settings screen and flip a toggle yourself |
| Can the app turn it on for you? | No (it can only show the pop-up) | No. Opening that Settings screen is the most the app can do |
| Can it turn on by accident? | If you mistap the pop-up | Settings → Apps → find it → toggle. Hard to enable by accident |
So this permission is a little tedious to grant — and in exchange, it can't be on without you knowing. You turn it off from the exact same place, any time.
What it can and can't do
There is exactly one thing it can do: draw something on top of your screen.
- ◯ Keep something showing in a corner of the screen
- ◯ Let that drawn thing react when you touch it
- ❌ It cannot read the app underneath. Floating over your chat app, it still can't see your messages
- ❌ It cannot operate other apps. That is the Accessibility permission — a completely separate one
- ❌ It cannot capture your screen. That, too, is its own separate permission
"Sitting on top" and "seeing underneath" are entirely different things. This permission only does the first.
So what should you watch for?
The way this permission gets abused is by covering your screen with a fake one (overlay phishing) — laying a look-alike password box over your real banking app to harvest what you type.
So the question to ask isn't "is this permission dangerous," it's "does this app have a reason to use it?"
- If putting something on your screen is what the app is for, asking for it makes sense
- If an app with no reason to draw on screen — a flashlight, a calculator — asks for it, that's the odd part
- If your screen flickers oddly while you open a banking app, be suspicious right away. Android also has protections that block overlays on top of financial apps
What happens if you deny the other permissions?
To be straight with you: it varies by app, but at least in our case, here's how it works.
| Permission | If you deny it |
|---|---|
| Microphone | Only voice reactions stop. Everything else still works |
| Notifications | The on-screen character can't run at all. See below |
| Photos | It never reads your whole gallery to begin with. See below |
Notifications are required because of an Android rule. An app that stays visible on your screen must post a "I'm running right now" notification. The rule exists to stop apps from running hidden — which means that notification is also your always-available off switch.
Photos deserve a bit more. Modern Android has a separate Photo Picker, so an app can receive only the item you pick, right there, without any permission to see your whole gallery. An app built this way doesn't request gallery access at all — so if photo permission isn't in the list, that's actually a good sign.
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Drop in a short video and it becomes a moving character; drop in a photo and it becomes a still one. The background is removed automatically, leaving just them.