FOSS Root Checker is an Open-Source Root Checker ANDROID APP for Verifying Superuser Access and Busybox Verification for Magisk, KernelSU, APatch & Older Methods on Mobile Devices.

App Version : v37.24.4.1

Codename : FRC-SU

Requirements : Android 7 and Higher

An Online Version of the App's Guide is given here.

- TRUSTED SOURCES -

Download Channels	Get the App
GitHub (Both)
Appteka (Official)
IzzyOnDroid (Offline)
Uptodown (Official)
OpenAPK (Both)

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Important

This Project is not Affiliated with Google, Magisk, and other Open Source / Closed Source Referenced in this Project. Certain Brands mentioned are for General Information Only.

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Uh, Why are there 2 APKs?

For Privacy of course! Let me break this down in simple terms :

• Official ( foss.chillastro.root.checker ) : Has sensitive permissions like INTERNET, STORAGE and SELF-INSTALLING APPS alongside Superuser. This facilitates the Self-Updater Feature!

• Offline ( foss.chillastro.root.checker.offline ) : If you are afraid of Internet, this LACKS the Self-Updater! Enjoy Privacy! :)

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How it works?

Note

All checks are performed on a background thread (Dispatchers.IO) to ensure your device remains responsive during the scan.

• If "Search Root" is pressed, she Checks 40+ System Paths to Find Traces of Root Access. If it finds, Root Traces are Found. If not it is clearly shown.
• Now if "Verify Root" is pressed the App Executes su -c id and if it returns 0, Root Access is Verified. Else, Root Access not Available.
• For BusyBox Checker, she checks BusyBox Specefix Paths. If not Found, the App executes su -c which busybox to verify BusyBox Installation.

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Key Features :

• Ultra Low Footprint of ~2MB! ✅
• Privacy First Design with full transparency. ✅
• Reduced Animations Enforced on Low end Devices ( if RAM < 4 GB ). ✅
• No Ads, In-App Purchases and no Data Collection. ✅
• Modern Material UI with Monet Theming. ✅
• Support for Android 7+ Devices. ✅
• Monochrome Mode for Minimalists. ✅
• Works with Magisk, KernelSU, KSU Forks, APatch and older Methods ✅
• Thorough Guidance provided on Rooting and Unlocking Bootloader. ✅

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Why is this at v37?! :

v37.24.4.1

• 37 -> Target Android API Level
• 24 -> Minimum Android Version to Install App
• 4 -> Major Update
• 1 -> Minor Update

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Screenshots :

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Screen Recording :

Screenrecorder-2026-10-26-19-50-45-560.mp4

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TRAILER on @delta-v-sfs :

▶ Click to Watch the Official Trailer

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Building from Source ( With Android Studio ) :

STEP 1 : Get Android Studio from here

STEP 2 : Clone this Repository

git clone https://github.com/Chill-Astro/FOSS-Root-Checker.git

STEP 3 : Open this Directory in Android Studio.

STEP 4 : Hit Build > Generate App Bundles or APKs > Generate APK as shown.

Alternatively Hit Build > Signed App Bundle or Apk. You will have to provide your OWN Certificate.

This method is RECOMMENDED as this is how I build myself.

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Credits :

Very Long List 😴

• Magisk by @topjohnwu : For Rooting pretty much anything these days.
• KernelSU by @tiann : For Kernel-Level Rooting on GKI Devices.
• APatch by @bmax121 : For Easy Kernel-Level Rooting.
• mtkclient by @bkerler : For allowing MTK Devices to be Rooted Easily ( Including my Phone ).
• Shamiko by @LSPosed : For hiding root traces and faking bootloader status.
• Tricky Store by @5ec1cff : For spoofing Hardware Backed Attestation.
• Tricky Addon by @KOWX712 : For making the Tricky Store process accessible via WebUI.
• Zygisk Next by @Dr-TSNG : For providing a standalone Zygisk implementation.
• ReZygisk by @PerformanC : For an alternative Zygisk implementation.
• Zygisk Assistant by @snake-4 : For helping hide Zygisk from detection.
• Play Integrity Fix by @KOWX712 : For maintaining Google Play Integrity standards.
• Play Integrity Fork by @osm0sis : For the widely used community fork of the integrity fix.
• TEESimulator by @JingMatrix : An open-source alternative for TEE spoofing.
• NoHello by @MhmRdd : An open-source alternative for hiding root.
• Tricky Store OSS by @beakthoven : For providing an open-source version of Tricky Store.
• KernelSU Next by @KernelSU-Next : For the continued development and community fork of KSU.
• SkiSU Ultra by @SkiSU-Ultra : For providing specialized kernel-level rooting features.
• TWRP & OrangeFox : For the custom recoveries that make flashing these modules possible.

Note from Developer :

A Star ⭐ will be Appreciated to Support this Project! :)

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