Knife.io

Fight with lots of knives!

Metajoy · com.sleeeeepfly.knife.io

3.0 out of 5 (1 rating) 1M+ downloads v2.2.11 101.3 MB Android 6.0+ PEGI 3 · Everyone

Download APK 101.3 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.2.11 (52)
Updated: Jan 16, 2026 (9 months ago)
APK size: 101.3 MB
Requires: Android 6.0+ (API 23)
CPU support: ARM 32-bit, ARM 64-bit
Graphics: OpenGL ES 2.0+
Category: Arcade (game)
Listed since: Mar 6, 2022 (at least)
Permissions: 22 (1 sensitive)
Website: metajoy.io
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Knife.io is a game by Metajoy in the Arcade category, listed since at least March 2022. It includes native code for ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 22 permissions, 1 of them sensitive: read shared storage. The game offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v2.2.11

1. Fix some minor bugs 2. Optimize the gameplay Join the battle now!

Description

From the listing uploaded by “appupdater”.

The most addictive and innovative io game! Pick up knives and wrap them around yourself to fight with other guys in the arena. Use both offensive and defensive modes to defeat your enemies smartly! How to Play *Hold&drag to move and attack enemies! *Release to enter defensive mode Designed by Sleeeeepfly Studios from China

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jan 16, 2026.
Certificate issued to “liwei” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Jan 16, 2026
Validated against Google Play Jan 16, 2026
Signed byCN=liwei, OU=liwei, O=liwei, L=zhangjiakou, ST=hebei, C=CN
Signing certificate (SHA-1)22:2C:10:D5:C9:CC:02:B7:32:7D:47:A6:2E:A2:DE:7D:33:AC:54:DB
File MD58eea1f9e04812edf8b9af41194d203fd
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (22)

Knife.io requests 22 permissions, 1 of them sensitive.

Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Apphub bind apphub service (custom) com.applovin.array.apphub.permission.BIND_APPHUB_SERVICE
Change wifi state android.permission.CHANGE_WIFI_STATE
Commondata get common data (custom) com.huawei.appmarket.service.commondata.permission.GET_COMMON_DATA
Control vibration android.permission.VIBRATE
Download without notification android.permission.DOWNLOAD_WITHOUT_NOTIFICATION
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.sleeeeepfly.knife.io.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Landscape screen android.hardware.screen.landscape
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Knife.io APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is Knife.io free?

The APK is free to download, but the game offers in-app purchases through Google Play.

Is the Knife.io APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 8eea1f9e04812edf8b9af41194d203fd.