The Android Auto app catalog is small on purpose. Google’s approved list covers navigation, calling, and audio streaming, and stops there. Everything else, YouTube, a browser, a second navigation stack, screen mirroring, IPTV, gets a hard “not compatible with Android Auto” wall in Play. Sideloading is how most drivers get around that wall, and by 2026 there is a small ecosystem of tools built specifically for it. Here are the seven we install on any new head unit.
What to look for in an Android Auto sideloading tool
- No root or PC required. The best options work with only Developer Mode toggled on the phone.
- Signed builds you can verify. Sideloaded apps still need to be trusted. Prefer distributors that show the signing key.
- Fresh Android Auto handshake support. Google tightens the compatibility check every year. Old builds break silently.
- Runs alongside the official Android Auto app. Nothing should replace or patch the Play Store version.
- Multi-source updater. A tool that only pulls from one mirror goes dark the moment that mirror does.
Quick comparison
| App | Best for | Platforms | Free plan | Starting price | Note |
|---|---|---|---|---|---|
| Fermata Media Player | The all-in-one media replacement | Android | Yes | Free | YouTube, IPTV, local video, screen mirror in one shell |
| AAAD | One-tap installer for popular AA sideloads | Android | Limited | About $2 one-time | Fetches the current signed APK of each supported app |
| AAStore | Curated sideload catalog | Android | Yes | Optional lifetime unlock | Alternative catalog when AAAD’s tier runs out |
| CarStream | YouTube on the head unit | Android | Yes | Free | Focused player rather than a full media suite |
| Screen2Auto | Mirror any phone app | Android | Yes | Free | Casts the phone display into the AA interface |
| Custom apps for AA | Launch anything from the AA home | Android | Yes | Free | Turns approved shortcuts into any package on the phone |
| AA Browser | A working browser in the car | Android | Yes | Free | Simple browser tuned for touchscreen head units |
The apps
1. Fermata Media Player - Best all-in-one AA media replacement
Fermata Media Player does the most in one install. It plays local video and audio, streams YouTube, handles IPTV playlists, mirrors the phone screen, and ships an in-app browser. On an Android Auto head unit it becomes the app you launch when Google’s approved catalog runs out. Open source, active maintenance, and a UI tuned for large touch targets.
Where it falls short: the settings are dense. First run takes ten minutes of tuning to feel right.
Pricing:
- Free: full app
- Paid: none
Platforms: Android, with a companion module for Android Auto
Bottom line: the first app to sideload on a fresh head unit.
2. AAAD - Best one-tap installer for the popular sideloads
AAAD (Android Auto Apps Downloader) is the tool most guides send you to first. Enable Developer Mode, install AAAD, and it fetches the currently-signed builds of Fermata, CarStream, Screen2Auto, and Custom apps for AA. You never have to hunt down an APK from a forum thread again.
Where it falls short: the free tier caps how many apps you can download per day. The paid unlock is cheap but not zero.
Pricing:
- Free: three installs per day
- Paid: roughly $2 one-time for the unlocked version
Platforms: Android
Download: aaad-android-auto-apps-downloader.en.softonic.com
Bottom line: cheaper than trawling forums for the current APK.
3. AAStore - Best backup catalog
AAStore is what to reach for when AAAD’s free tier is exhausted or when a specific app is missing from AAAD’s index. It works the same way (no root, Developer Mode only) with a slightly different app selection. Some users buy both and use them interchangeably.
Where it falls short: less prominent than AAAD, so the catalog is smaller and the signing keys are less discussed on r/AndroidAuto.
Pricing:
- Free: browse and install
- Paid: optional lifetime unlock for extras
Platforms: Android
Download: search “AAStore Android Auto” on APKMirror; not on the Play Store
Bottom line: a useful second source when AAAD misses something.
4. CarStream - Best focused YouTube player for the head unit
CarStream is what people install when they only want YouTube on the drive. It is lighter than Fermata, launches faster, and does one job well. Piped or Invidious backends can be pointed at, so a Premium-free experience without ads is possible on the head unit.
Where it falls short: no local media, no browser, no mirroring. Pure video player.
Pricing:
- Free: full app
- Paid: none
Platforms: Android, via sideload
Download: through AAAD or F-Droid equivalents
Bottom line: when Fermata feels like too much for a YouTube-only use case.
5. Screen2Auto - Best for mirroring any phone app
Screen2Auto casts whatever is on the phone screen into the Android Auto display. That means Waze plus a mirror of Google Maps for the passenger’s second opinion, or a spreadsheet on the head unit while the driver keeps eyes forward. It is the escape hatch for any app that will never get official AA support.
Where it falls short: input is limited. Most mirrored apps are read-only in the car for safety.
Pricing:
- Free: full app
- Paid: none
Platforms: Android
Download: through AAAD
Bottom line: the “I need X on the car screen right now” tool.
6. Custom apps for AA - Best for launching any app from the AA home
Custom apps for AA rewrites the launcher so approved shortcuts point at any package on the phone. Combined with Fermata or Screen2Auto, it lets any sideloaded app show up on the Android Auto home screen instead of being buried inside another app.
Where it falls short: requires the sideloaded target app to be installed and up to date. Configuration is fiddly the first time.
Pricing:
- Free: full app
- Paid: none
Platforms: Android
Download: through AAAD
Bottom line: the missing piece to make sideloaded apps feel first-class on AA.
7. AA Browser - Best when a browser is what you actually need
AA Browser is a stripped-down browser built for the car. It defaults to large text, a friendly URL bar, and a bookmark grid rather than a tab strip. Good for hotel wifi captive portals, quick lookups, or reading a delivery slip on the head unit while parked.
Where it falls short: not a Chrome replacement. Some sites break on the older browser engine.
Pricing:
- Free: full app
- Paid: none
Platforms: Android, via sideload
Download: through AAAD
Bottom line: the tool for parking-lot browsing, not driving-time browsing.
How to pick the right one
- If you want the fewest apps that do the most: Fermata Media Player.
- If you want a one-tap installer for the whole sideloaded catalog: AAAD, with AAStore as backup.
- If you only care about YouTube on the head unit: CarStream.
- If you need an app that Google will never allow (a specific navigation app, a delivery app): Screen2Auto plus Custom apps for AA.
- If you actually need a browser in the car: AA Browser.
Skip all of this if the head unit is a work vehicle or a leased car with monitored software. Sideloading is a personal-car choice.
FAQ
Is sideloading apps on Android Auto safe? It is as safe as the source you install from. Stick to AAAD, AAStore, or F-Droid, which all show the signing key and let you verify the APK before install. Sideloading only affects the phone; it does not modify the car’s system.
Do I need root or a computer to sideload Android Auto apps? No. Every app on this list installs with Developer Mode toggled on the phone, no PC and no root required.
What is the difference between AAAD and AAStore? Both are third-party catalogs that fetch current signed builds of the popular sideloaded apps. AAAD is more widely used and has better community coverage; AAStore is the backup when AAAD is missing an app or the daily limit hits.
Will sideloaded Android Auto apps stop working after a Google update? Sometimes. Google tightens the compatibility check every few releases. The active projects (Fermata, CarStream) usually ship a fix within a few weeks. AAAD updates its bundled versions in step.
Can passengers use sideloaded apps while driving? Motion blocks apply to most sideloaded apps the same way they do to official ones. Screen2Auto adds an override for passengers, which is a driver-discretion call in most regions.
