Delta Executor's Android build is a single 38 MB APK that installs in seconds and runs on any device from Android 7.0 Nougat forward. The mobile build is the one piece of the Delta experience that asks for a once-per-24-hour key — that is the only step that costs you any time. Walk through this guide once and the second install is muscle memory.
Before You Start
Make sure your phone meets the minimum bar — most devices from the last five years do, but worth checking:
- Android version: 7.0 Nougat or newer (Android 11+ recommended).
- RAM: 2 GB minimum, 4 GB recommended.
- Free storage: ~120 MB (the APK plus Roblox plus a couple of scripts).
- Battery: above 20% (Play Protect may stall the install on very low battery).
- Roblox: installed from the official Google Play Store, not a third-party mirror.
Step 1 — Download the APK
On your Android phone, open Chrome (or any browser) and navigate to deltaxecutor.download/download. Tap the gold Download for Android button. The download begins immediately — the file is delta-x-v2.738.apk, roughly 38 MB.
If you are reading this on a PC, you can also scan the QR code on the download page from your phone's camera — that deep-links directly to the APK download. Avoid sideloading the APK over Bluetooth or cable: use your phone's own browser so the SHA-256 hash can be verified automatically by the Delta installer.
Step 2 — Allow Installations from Unknown Sources
Android refuses to install APKs by default. You only need to do this once per browser:
- Tap the Delta APK file from the notification shade.
- Android shows a permission dialog: "For your security, your phone is not allowed to install unknown apps from this source."
- Tap Settings from the dialog.
- Find your browser (Chrome, Edge, etc.) in the list and toggle Allow from this source on.
- Go back and tap Install.
On Samsung One UI 6+ the exact path is Settings → Apps → ⋮ → Special access → Install unknown apps. On Xiaomi MIUI / HyperOS the path is Settings → Privacy → Special permissions → Install unknown apps. On stock Pixel it is Settings → Apps → All apps → Chrome → Install unknown apps.
Step 3 — Install the APK
Open the APK from your notification shade or your Downloads folder. Tap Install. The install takes 6–10 seconds on modern hardware. When it finishes, tap Open or find Delta on your home screen.
If Play Protect warns you, the cleanest path is to tap More details → Install anyway. Delta's installer is signed, and Google's review queue does not have visibility into third-party executors, so this warning is informational — not a security red flag.
Step 4 — Get Your 24-Hour Key
The Delta Android build requires a server-signed key that proves you are running an unmodified build on a real device. You rotate the key every 24 hours. The flow runs inside Delta itself — no sketchy third-party app to install.
- Launch Delta.
- Tap Get Key from the welcome screen (or the key icon in the top-right of the home menu).
- Your default browser opens the key verification page. Complete one of the free short tasks — typically install a free app and reach level X or sign up for a free trial. None of them require payment.
- When the task completes, copy the 36-character key to your clipboard.
- Return to Delta. The key field is pre-focused — paste it and tap Continue.
The full flow usually takes 40–60 seconds on a fresh device, faster once you have completed the same task type before.
Step 5 — Run Your First Script
You are now inside Delta. The home menu shows the current Roblox status, your account handle, and the Script Hub. To execute a script:
- Open Roblox and join any game (Blox Fruits is the most common start).
- Wait for the game to fully load.
- Tap the floating Delta icon — the green circular badge that appears on the left edge of the screen.
- Tap Script Hub, search for the game you joined, and pick a script (each is tagged Verified).
- Tap Add Script then Execute.
If everything worked, the script's in-game GUI appears within two to four seconds. The Delta Console tab shows any errors — most of the time they are caused by the game having just received a Roblox update, in which case the script ships a patch within 24 hours.
Troubleshooting
"App not installed as package appears to be invalid." — Usually caused by an incomplete download. Re-download from a fresh tab. If you downloaded over mobile data, try Wi-Fi to rule out a dropped connection.
"Delta keeps getting killed by battery optimization." — On Xiaomi, Oppo, Vivo, OnePlus, Honor and Huawei phones, Battery Optimizer will kill background apps aggressively. Open Settings → Apps → Delta → Battery and set it to No restrictions. On Samsung One UI the equivalent is Settings → Apps → Delta → Battery → Unrestricted.
"Key says invalid." — Copy the entire 36-character string, including the trailing equals sign if present. Do not add any spaces. If it still fails, tap Get Key again — the previous session may have expired before you pasted it in.
Battery & Background Optimization
Delta needs to stay alive in the background to attach to Roblox the moment it launches. On modern Android, that usually works out of the box, but several OEMs use aggressive battery-optimization rules that can kill Delta mid-session. The right setting depends on your device vendor.
For Samsung One UI, open Settings → Apps → Delta → Battery → Unrestricted. For Xiaomi MIUI or HyperOS, open Settings → Apps → Manage apps → Delta → Other permissions → Display pop-up windows and toggle on. For Oppo ColorOS or Realme UI, open Settings → Battery → More battery settings → Optimise battery use → Don't optimise → Delta. For OnePlus OxygenOS, open Settings → Apps → Delta → Battery → Battery optimisation → Don't optimise. For Honor MagicOS, open Settings → Apps → Delta → Battery → App launch and turn off Manage automatically.
On any of these vendors, the effect of skipping this step is that Delta will sometimes stop attaching to Roblox — because the OS killed it before Roblox launched. The script will still appear to work when you re-launch Delta manually, so the symptom feels like "Delta forgets my settings every day" — but the real cause is a background-app kill, not a script bug.
Sideload from PC (Optional)
If you would rather install the APK over USB from your PC — useful if your phone is locked down or if you want to script multiple devices at once — the standard ADB install path works:
- Install Android Platform Tools on your PC (Google's ADB bundle).
- Connect your phone over USB with developer-mode USB-debugging enabled.
- From a terminal, run
adb install -r delta-x-v2.738.apk. - Delta appears in your launcher. The key flow runs the same way as the on-device install.
This is also the recommended path for IT-managed handsets where the user cannot normally toggle Unknown Sources for the browser. Most enterprise mobility profiles still allow ADB installs through a developer exception.
What's Next
Once Delta is alive in the background and successfully attaching to Roblox, the natural next step is to save the loadstring you actually use to your Delta cloud account — so the same setup is one tap away the next time you open the app on a different device. The blog post Best Delta Blox Fruits Script has a loadstring you can save as a starter, and the Key System Explained post covers what the daily rotation is doing behind the scenes.