How to Keep Slack Active on Your Phone (iPhone and Android)

To keep Slack active on your phone, keep the Slack app open on an unlocked screen. Slack's mobile app shows you as active only while it is in the foreground. Lock the phone or switch apps and you go away within seconds, even with notifications on. Coworkers see the same green dot as on a computer, with no phone icon. On iPhone, set Auto-Lock to Never and pin Slack with Guided Access. On Android, turn on App pinning and keep the screen awake while charging. To stay active with the app closed or the phone in your pocket, presence has to come from somewhere else: an awake computer with Slack in use, or a server.

Why Slack goes away so fast on a phone

On a computer you get 10 minutes after your last keyboard or mouse input, in any app, while the Slack desktop app is open. On a phone you get nothing after the app leaves the screen. iOS and Android suspend apps in the background to save battery, and a suspended Slack app cannot report that you are active. Slack's help center says the same: you are set to away if you navigate away or close the app on your mobile device.

Notifications do not change this. They arrive through Apple's and Google's push services while Slack is suspended, so your phone buzzes while your dot stays grey. Exact timings for every device are in how long does Slack stay active.

Coworkers cannot tell you are on your phone. The dot looks the same on every device, as we tested in does Slack show when you are on mobile.

How to keep Slack active on iPhone

• Turn off Auto-Lock. Open Settings, then Display & Brightness, then Auto-Lock, and choose Never.
• Pin Slack on screen with Guided Access. Open Settings, then Accessibility, then Guided Access, and turn it on. Set a passcode. In the Guided Access settings, set Display Auto-Lock to Never as well.
• Start it in Slack. Open Slack, then triple-click the side button (or the Home button) and tap Start. Now an accidental swipe cannot move Slack off the screen.
• Plug the phone in. A lit screen for hours drains the battery fast.
• Undo it afterwards. Triple-click and enter your passcode to end Guided Access, and set Auto-Lock back.

Low Power Mode works against you: it forces Auto-Lock to 30 seconds. Turn it off while you do this. More iPhone detail is in keep Slack active on iPhone.

How to keep Slack active on Android

Menu names differ by brand. These are the Pixel and stock Android names; Samsung puts the same switches under slightly different menus.

• Keep the screen on while charging. Turn on Developer options (tap Build number seven times in Settings, About phone), then in Developer options turn on Stay awake. The screen stays on while the phone charges. This matters because many phones cap Screen timeout at 10 or 30 minutes.
• Pin Slack. Turn on App pinning in Settings, Security & privacy (or Security), then open recent apps, tap the Slack icon and choose Pin.
• Exclude Slack from battery saving. In Settings, Apps, Slack, Battery, choose Unrestricted, and keep Battery Saver off while you do this.
• Undo it afterwards. Unpin Slack and turn Stay awake off.

More Android detail is in keep Slack active on Android.

How to stay active on Slack when the phone app is closed

The phone cannot do this by itself. Once Slack is closed or in the background, it reports nothing. You stay green only if another session is active, because Slack shows you as active if any one signed-in device is:

• An awake computer with Slack in use. A laptop inside its 10-minute window keeps you green while the phone is locked. It stops 10 minutes after your last input on that computer (Slack desktop 4.52.178 code, checked 7 Oct 2026).

• A second phone or tablet with Slack on screen. The steps above, on a spare device plugged in at your desk.

• A server. Slack Green connects with your own Slack session (the xoxc and xoxd pair) on its side and keeps your dot green through your working hours, with the phone locked and every other device off. Like every tool of this kind it holds a session token for you; whether a presence tool can get you caught explains what that means and what others can see.

How devices combine is in how Slack decides when you are away.

What does not keep Slack active on a phone

• Leaving notifications on. Push is not presence. If the phone stops buzzing too, that is a separate problem, covered in Slack notifications not working.

• Reading messages on the lock screen or in a notification. Slack is not in the foreground.

• Background app refresh. It lets Slack fetch messages in the background. It does not report you as active.

• A status such as "Working from my phone". It explains the grey dot but does not change it, because the dot and the status are separate systems.

• Slack in a phone browser. Mobile browsers suspend background tabs the same way. A phone jiggler that rocks the phone does not help either, because motion is not a touch.

Which option fits your day

For every method on every device, see how to keep Slack active. To set a status that clears on its own, see how to schedule a Slack status.

FAQ

How do I keep Slack always active on mobile?

Keep the Slack app on an unlocked screen: Auto-Lock off and Guided Access on iPhone, App pinning and Stay awake on Android. To stay active with the app closed, you need another active session, such as a laptop or a server-side tool.

Is there a way to stay active on the Slack phone app when the app closes?

Not from the phone. A closed or background app reports nothing, so you go away in seconds. Only another active session, on a computer or a server, keeps you green.

Does Slack stay active if I lock my phone?

No. Locking the phone suspends Slack, and you go away within seconds.

Will Slack show me as active if I have the app open on my phone?

Yes, while it is open on screen and the phone is unlocked.

Do push notifications keep me green on Slack?

No. They arrive through Apple's and Google's push services while Slack is suspended.

Is iPhone or Android better for staying active?

Neither. Both suspend Slack in the background. Android lets you keep the screen on while charging from Developer options; iPhone lets you pin Slack with Guided Access. Both end when the screen locks.