Last updated October 30, 2026. Sideloading means installing an app on a Meta Quest headset from outside the official Meta Horizon Store. It is how Quest owners get game ports, early builds, emulators, homebrew projects and tools that Meta’s store does not carry. This guide covers the three dependable ways to do it on Quest 3 and Quest 3S, what each one requires, and the risks worth knowing before you start.
The Short Answer
For most people, the route that works today is: verify a Meta developer account, turn on DEVELOPER MODE in the Meta Horizon phone app, connect the headset to a computer with a USB-C data cable, and install apps through SideQuest or Meta Quest Developer Hub. Sideloaded apps then appear in your library under the Unknown Sources filter, or in the main library if SideQuest adds them there.
One important change from earlier this month: SideQuest’s no-developer-mode wireless setup, which it launched on October 6, appears to be GONE. The release notes for SideQuest version 1.4.2, published October 26, contain a single line: “Remove Meta wireless ADB setup.” SideQuest has not published a longer explanation that we could find as of October 30, and Meta has not commented publicly. Until that changes, plan on the developer mode route below.
Sideloading Methods Compared
| Method | Needs developer mode | Needs a computer | Best for |
|---|---|---|---|
| SideQuest desktop app (Windows, macOS, Linux) | Yes | Yes, for first setup | Most users; browsing a catalog of Quest apps and ports |
| Meta Quest Developer Hub (MQDH) | Yes | Yes | Users who prefer Meta’s own official tool |
| ADB command line | Yes | Yes (USB or wireless ADB) | Power users and developers |
Before You Start: What You Need
- A Meta Quest 3 or 3S that is already set up and paired with the Meta Horizon app on your phone. If you are not there yet, start with our Quest 3 and 3S setup guide.
- A Meta developer team (organization) on the Meta Horizon Developer Dashboard. It is free to create.
- A verified developer account. Meta’s device setup documentation says verification is done either by confirming a mobile number for SMS two-factor verification or by adding a payment method (PayPal is excluded).
- Age 18 or over. Meta lists this as a prerequisite for developer mode, and device-level restrictions, such as those on teen accounts, can block it.
- A USB-C data cable (a charge-only cable will not work) and a Windows, macOS or Linux computer.
Step 1: Create a Developer Team and Verify Your Account
- Sign in to the Meta Horizon Developer Dashboard with the same Meta account your headset uses.
- Open the Create New Team page and fill in a team name. Any name works for personal use.
- Open the Verification tab and confirm a phone number for SMS two-factor verification, or add a payment method.
This is a one-time step. You do not need to publish anything or pay a fee.
Step 2: Turn On Developer Mode
- Open the Meta Horizon app on your phone and tap the headset icon in the toolbar.
- Tap your paired headset at the top of the screen, then tap Headset Settings.
- Tap Developer Mode and toggle it on.
- Restart the headset if it does not pick up the change right away.
Meta’s documentation carries a warning worth reading in full: developer mode “is intended for development tasks such as running, debugging and testing applications. Engaging in other activities may result in account limitations, suspension, or termination.” Sideloading has been common for years, but that is the official policy language, and you should weigh it before you proceed.
Step 3: Connect and Authorize the Computer
- Connect the headset to your computer with the USB-C data cable.
- Put the headset on. When the Allow USB debugging? prompt appears, select Always allow from this computer.
- If the prompt does not appear, open Quick Settings, go to Settings > Developer and toggle MTP Notification on, then reconnect the cable.
- On Windows, install Meta’s Oculus ADB Drivers from the Meta developer downloads page if the computer does not see the headset.
Step 4, Option A: Install Apps With SideQuest
SideQuest is the most widely used sideloading tool. Download the desktop app from sidequestvr.com. The current release is 1.4.2, and its GitHub release page lists Windows, macOS, Linux AppImage, .deb and Flatpak builds. The Windows installer alone showed 14,854 downloads when we checked on October 30. Steam Deck and Steam Frame owners can use the Flatpak builds, which we covered in SideQuest Ships Flatpaks for Steam Deck and Steam Frame.
- Open SideQuest with the headset connected. The status indicator in the top-left corner turns green when the headset is authorized.
- To install from the SideQuest catalog, find an app on the SideQuest site or in the desktop app and choose the install option.
- To install an APK file you already have, drag it onto the SideQuest window, or use the “Install APK file from folder” button in the toolbar. Some larger games also ship OBB data files; SideQuest 1.4.0 added grouped multi-file installs so the APK and its data go in together.
- Once the first setup is done, SideQuest can switch the connection to wireless ADB over your local Wi-Fi, so later installs do not need the cable. Wireless ADB generally has to be re-enabled after the headset restarts.
SideQuest also handles supported Steam game ports. As we reported in SideQuest Drops Developer Mode and USB From Quest Setup, it can fetch the required game files after you sign into Steam, but those ports still require you to own the original PC game.
Welcome to the future of SideQuest – No more developer mode, no more USB cable required. Hell you don’t even need sideloading anymore, who would have thought!
— SideQuest (@SideQuestVR) October 6, 2026
That October 6 promise is the feature version 1.4.2 appears to have rolled back. If SideQuest restores it or explains the change, we will update this guide.
Step 4, Option B: Install Apps With Meta Quest Developer Hub
Meta Quest Developer Hub is Meta’s own desktop tool for Windows and macOS. It is built for developers, but it is the most official route available. After the headset is connected and authorized, it appears on the Device Manager screen, and you can drag an APK onto the device panel to install it. MQDH also offers screen casting, file browsing and performance tools, which makes it useful even if you mainly use SideQuest.
Step 4, Option C: Install Apps With ADB
ADB, the Android Debug Bridge, is the command-line tool that every sideloading app uses underneath. Install Google’s Android SDK Platform Tools, open a terminal in that folder and run:
adb devices
adb install -r yourapp.apkThe first command confirms the headset is connected and authorized. The second installs the APK, and the -r flag replaces an existing version if one is installed. For games with OBB data, push the data folder to /sdcard/Android/obb/ with adb push before launching.
Step 5: Find and Launch Sideloaded Apps
Open the Library in the headset and change the filter to Unknown Sources. Apps installed through MQDH or ADB appear there. Apps installed through recent SideQuest versions can also appear in the main library list.
Is Sideloading Safe?
The technical process is low risk, and you can turn developer mode off again at any time in the same Meta Horizon app menu. The real risk is the SOURCE of the APK. A sideloaded app does not go through Meta’s store review, and it can request the same permissions as any Android app. Practical rules:
- Install only from sources you trust, such as the SideQuest catalog, a developer’s own site or itch.io page, or an open-source project’s official GitHub releases.
- Never install “cracked” copies of paid store games. Beyond being piracy, they are a common way to spread malware.
- Review permission prompts. SideQuest 1.4.0 added a permissions review before install; sensitive permissions still need approval in the headset.
- For a headset shared with children, keep developer mode off and use the tools in our Meta Quest parental controls guide.
Troubleshooting
| Problem | Likely fix |
|---|---|
| Developer Mode toggle missing in the app | Confirm the developer team exists and the account is verified, then force-close and reopen the Meta Horizon app. |
| SideQuest shows a red or orange status | Put the headset on and accept the USB debugging prompt; try a different USB-C data cable or port. |
| Windows does not detect the headset | Install the Oculus ADB Drivers and reconnect. |
| App installs but will not launch | Check for missing OBB data files, or an APK built for an older Quest model. |
| Wireless connection stops working | Wireless ADB usually resets after a reboot; reconnect by cable once and re-enable it. |
Related Guides
- How to Cast Meta Quest 3 to a TV, Phone or PC (2026)
- Quest 3 vs Quest 3S: Which Meta Headset to Buy in 2026
- VR Motion Sickness: 12 Proven Ways to Prevent It (2026)
Sources: Meta Horizon developer documentation (device setup), SideQuest GitHub releases (v1.4.0 through v1.4.2, checked October 30, 2026), and SideQuest’s October 6 announcement. Metaverse Watcher does not accept payment for app placement and uses no affiliate links in this guide.