KernelSU vs Magisk
For years, Magisk has been the undisputed king of Android rooting. Now there's a new contender: KernelSU.
Should you switch? Stay with Magisk? Let's break it down.
Quick Comparison
| Aspect | Magisk | KernelSU |
|---|---|---|
| Root Method | Patched boot image | Kernel-integrated |
| Setup Complexity | Moderate | Moderate-Advanced |
| Module Support | Extensive (1000+) | Growing (100+) |
| SafetyNet/Play Integrity | Via modules | Native support |
| Device Support | Universal | Kernel-dependent |
| Active Development | Yes | Yes |
| Beginner-Friendly | More | Less |
What is Magisk?
Magisk is a systemless root solution that:
- Patches boot image to gain root
- Maintains system partition integrity
- Provides module system for customization
- Includes MagiskHide/DenyList for hiding root
How it works:
Boot image → Patched with Magisk → Root access at boot
History: Created by topjohnwu, actively developed since 2016.
What is KernelSU?
KernelSU is a kernel-based root solution that:
- Builds root directly into the kernel
- Provides root without modifying boot image
- Offers native Play Integrity support
- Uses OverlayFS for module system
How it works:
Kernel → KernelSU built-in → Root access at kernel level
History: Created in 2022, gaining popularity rapidly.
Installation Comparison
Magisk Installation
1. Download Magisk APK
2. Patch boot image in Magisk app
3. Flash patched boot via fastboot
4. Boot and install Magisk app
5. Done!
Or via TWRP:
1. Flash Magisk.zip in TWRP
2. Boot and open Magisk app
3. Done!
KernelSU Installation
Option 1: Pre-built Kernel
1. Find KernelSU-enabled kernel for your device
2. Flash via fastboot or recovery
3. Install KernelSU app
4. Done!
Option 2: Patch Existing Kernel
1. Extract boot.img
2. Patch with KernelSU
3. Flash patched boot
4. Install KernelSU app
Option 3: Build Custom Kernel
1. Get kernel source
2. Integrate KernelSU
3. Compile kernel
4. Flash
Module Systems
Magisk Modules
The most extensive module ecosystem:
- 1000+ modules available
- Magisk Module Repository
- Easy online search and install
- Well-documented format
Popular modules:
- Play Integrity Fix
- Shamiko
- LSPosed
- ViPER4Android
- ACC (Battery control)
KernelSU Modules
Growing ecosystem:
- 100+ modules (and growing)
- Many Magisk modules work
- Uses OverlayFS instead of magic mount
- Some Magisk-specific modules don't work
Module compatibility:
- Simple Magisk modules: Often work
- Complex system mods: May need adjustment
- Zygisk modules: Need KernelSU-specific versions
SafetyNet / Play Integrity
With Magisk
Default: Usually fails
Fix: Install these modules:
- Play Integrity Fix
- Shamiko
- Configure DenyList
Result: Usually passes DEVICE_INTEGRITY
With KernelSU
Default: Often passes without extra work
Why: Root is at kernel level, harder to detect
Result: Better pass rate out-of-box
Verdict: KernelSU has a slight edge for banking apps, but both can pass with proper configuration.
Hide Root Capabilities
Magisk Hiding
- DenyList: Per-app root hiding
- Shamiko Module: Enhanced hiding
- Hide Magisk App: Rename/hide manager
- Zygisk: Deep system-level hiding
Effectiveness: Excellent when properly configured.
KernelSU Hiding
- Native hiding: Built into kernel
- Per-app allowlist: Control which apps see root
- No Manager detection: Separate APK
- Kernel-level hiding: Harder to detect
Effectiveness: Often better out-of-box.
Performance Impact
Magisk
- Boot time: +1-3 seconds
- Runtime: Negligible impact
- Memory: Manager app running
- Battery: Minimal drain
KernelSU
- Boot time: No additional time
- Runtime: Zero measurable impact
- Memory: Minimal (kernel-level)
- Battery: Zero measurable drain
Verdict: KernelSU is theoretically lighter, but Magisk's impact is negligible in practice.
Device Support
Magisk
Works on virtually everything:
- Any device with unlockable bootloader
- Android 6.0+
- Universal boot patching
- Huge community support
KernelSU
Depends on kernel availability:
- Needs kernel compiled with KernelSU
- Popular devices have builds
- Obscure devices may not have support
- Requires GKI 2.0+ for easiest support (Android 12+)
Verdict: Magisk wins for device compatibility.
LSPosed Support
On Magisk
1. Enable Zygisk
2. Install LSPosed Zygisk version
3. Works perfectly
On KernelSU
1. Install APatch or KernelSU-compatible LSPosed
2. May need additional configuration
3. Works, with some setup
Both support LSPosed, but Magisk's implementation is more mature.
Direct Feature Comparison
| Feature | Magisk | KernelSU |
|---|---|---|
| Easy installation | ✅ | ❌ (kernel-dependent) |
| Universal support | ✅ | ❌ |
| Module quantity | ✅ | ❌ |
| Out-of-box hiding | ❌ | ✅ |
| No boot patch needed | ❌ | ✅ |
| Active development | ✅ | ✅ |
| Community size | ✅ | Growing |
| Documentation | ✅ | ✅ |
| OTA update friendly | ❌ | ✅ (with some setups) |
Use Cases
Choose Magisk If
- First time rooting
- Device lacks KernelSU kernel
- You need specific Magisk modules
- You want largest community support
- You prefer simpler setup
- You use LSPosed heavily
Choose KernelSU If
- Banking apps give you trouble
- You want cleanest possible root
- Your device has a good KernelSU kernel
- You want minimal system modification
- You're comfortable with kernel-level stuff
- You value bleeding-edge tech
Choose Both (Yes, Really)
Some users run both:
- Magisk for module ecosystem
- KernelSU for root hiding
- Requires compatible setup
Not recommended for beginners.
Switching Between Them
Magisk to KernelSU
1. Find KernelSU kernel for your device
2. Remove Magisk (App → Uninstall → Complete)
3. Flash KernelSU kernel
4. Install KernelSU manager app
5. Reinstall compatible modules
KernelSU to Magisk
1. Flash stock or Magisk-patched boot
2. Install Magisk app
3. Complete root
4. Reinstall modules
My Personal Take
What I use: Magisk on main device
Why:
- Module ecosystem is unmatched
- LSPosed works perfectly
- Community support for any issue
- Been reliable for years
When I'd switch to KernelSU:
- If banking apps became impossible with Magisk
- If my device had excellent KernelSU kernel support
- If module compatibility improved significantly
The future: KernelSU is promising. As it matures, it might become the new standard. For now, Magisk remains the safer choice for most users.
Conclusion
Magisk: The established choice. Works everywhere, does everything, has massive community.
KernelSU: The innovative alternative. Cleaner approach, better hiding, needs kernel support.
There's no wrong choice. Both give you root. Both let you customize your phone. Pick based on your priorities.
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