String.io

Conquer, defend and survive! Join the battle and dominate the arena!

MiniCasualGames · io.hexargame.stringpaperio

4.1 out of 5 (57 ratings) 10M+ downloads v5.0.36 87.7 MB Android 7.0+ PEGI 3 · Everyone

Download APK 87.7 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v5.0.36 (116)
Updated: Aug 30, 2026 (1 month ago)
APK size: 87.7 MB
Requires: Android 7.0+ (API 24)
CPU support: ARM 64-bit
Graphics: OpenGL ES 2.0+
Category: Arcade (game)
Listed since: Apr 26, 2021 (at least)
Permissions: 23 (1 sensitive)
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

String.io is a game by MiniCasualGames in the Arcade category, listed since at least April 2021. It includes native code only for ARM 64-bit, so it won't install on phones that can only run 32-bit apps.

It asks for 23 permissions, 1 of them sensitive: read shared storage. Compared with version 5.0.34, it drops 1 permission: “Prevent the device from sleeping”. The game offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

Ratings

4.1out of 557 ratings

5 ★67%
4 ★5%
3 ★12%
2 ★4%
1 ★12%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v5.0.36

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

Description

From the listing uploaded by “appupdater”.

String.io is a brand new .io game! The goal is pretty simple. Just capture as much territory as possible! Take care! Your enemies are extremely smart! A clash will happen anytime and anywhere! You need to have very good strategy! HOW TO PLAY Enclose an area of hexagon blocks with your string to capture new land. Attack other players by hitting their tails. Don't be hit by other players. FEATURES ★ Over 30 colorful avatar to unlock, choose your favorite skins. ★ amazing minimalism graphics. ★ Up to 4 control modes to choose. ★ Online PVP coming soon. Join this game and beat people all around the world!

Version history

3 versions are listed, going back to v5.0.33.

v5.0.36 LATEST Aug 30, 2026 87.7 MB TRUSTED v5.0.34 Aug 21, 2026 101.9 MB TRUSTED v5.0.33 Jul 27, 2025 99 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 30, 2026.
Certificate issued to “Windforce Games” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 30, 2026
Validated against Google Play Aug 30, 2026
Signed byCN=Windforce Games
Signing certificate (SHA-1)DB:EA:FF:1F:D4:31:00:D6:23:25:39:A5:13:7F:11:93:C4:74:74:02
File MD5ea4ab9915d620e24f518f2e0832be32e
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 (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (23)

String.io requests 23 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
Attest (custom) com.amazon.privacypass.ATTEST
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) io.hexargame.stringpaperio.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Mapsagent read app info (custom) com.samsung.android.mapsagent.permission.READ_APP_INFO
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

String.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 String.io free?

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

Is the String.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. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is ea4ab9915d620e24f518f2e0832be32e.