323K reviews
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About this app

Featured as Lifehacker's Top 1 Utility in 2013 Best Android Apps (, Android Authority's Top 3 Best Root Apps (

"Aggressive Doze" and "Doze on the Go" to maximize the battery saving on Android 6+, even without root! (details explained in settings)

Never should your phone or tablet become slower and battery hungrier after lots of apps installed. With Greenify, your device can run almost as smoothly and lastingly as it did the first day you had it!

Greenify help you identify and put the misbehaving apps into hibernation when you are not actively using them, to stop them from lagging your device or leeching the battery, in a unique way! They can do nothing without explicit launch by you or other apps, while still preserving full functionality when running in foreground.

Please report bugs in the XDA forum ( or G+ community (

Greenify NEVER EVER collects your personal data despite the capability of accessibility service, it just takes advantage of it to automate the hibernation procedure.

IMPORTANT: Greenifying an app implies that you are aware that all the background functionality (service, periodic task, event receiver, alarm, widget update, push message) of this app will become out of service during the hibernation except when you are using this app.

NEVER greenify alarm clock apps, instant messaging apps unless you don't rely on them. Please do verify the impact of greenified apps on which you heavily rely.

Note: Greenify does need background running services for auto-hibernation to work. It is designed and implemented in extremely lightweight and nearly zero CPU and battery consumption.


DEVICE ADMIN: This app uses administrator privilege to turn off the screen immediately after automated hibernation on non-root devices. This permission will be requested explicitly for your consent only if required.
DRAW OVER OTHER APP: To dim the screen during automatic hibernation when the screen is expected to be off.
DISABLE SCREEN LOCK & BIND ACCESSIBILITY SERVICE: For automatic hibernation to work on non-root devices.
GET ACCOUNTS & WRITE SYNC SETTINGS: Control the account sync of apps if its sync task is too frequent.

This app uses Accessibility services, to automate the hibernation procedure.

=== FAQ ===

* It seems that automatic hibernation is not working.
* Some of my greenified apps (e.g. Google Maps) seems not hibernating.
* I want to greenify system apps!
* De-greenified apps still got no push notification!
Read here:

=== Translation ===

All translations are created by community volunteers and open for contribution:

=== Donation ===

If you love Greenify, please consider the "donation package" ( for extra experimental features:

* Greenify system apps
* In-depth details about how apps behave on your device
* And more
Updated on
Nov 14, 2019

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

310K reviews
Slinger of Truth
June 7, 2023
It's the most essential app I've used for every phone using Android. I have no idea if it's available for Apple, don't care. This app will keep your battery and phone speed at optimal levels with the push of one button, all those installed apps that start themselves, along with others, for example Amazon, that slows your phone down or bogs down your data stream, this will chill out those annoying apps. You can set it up to avoid whatever app your using from stopping and pick every app to drop.
109 people found this review helpful
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A Google user
March 22, 2019
A lot of apps that claim to "tune up" your cell phone do nothing except display advertisements. Not so with Greenify. Not only are there no advertisements, the app actually works. I was having a problem with too many apps running in the background and using ram memory, slowing down my phone. I uninstalled some of the apps, but Greenify help control the apps I did not want to get rid of. Apps have stopped working on their own; I have more memory, and the phone is smooth. I will buy this app.
246 people found this review helpful
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June 4, 2021
I don't care what others say, but this app has prevented me from trashing my slow phone. Always get System UI crashing errors due to low RAM, and nothing could unfreeze my phone until I used this app. Now, everytime it's slow or frozen, I just hit the power button and in a few seconds it's completely refreshed. I used to think other automatic boosters were working, but my phone would still freeze. Greenify is better!
262 people found this review helpful
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What's new

NEW: Restrict the ability of selected app to run as foreground, to transform it to background-free. For non-root device, it requires Island with God mode activated. (Android 9+)
Wake-up tracker and cut-off now works for apps in Island and compatible with Android 10.
App analyzer is improved with foreground service detection and other minor tweaks.
Fixed "Hibernate and Sleep" shortcut when only apps in Island are pending.