Middor

Mirror applications for HUD display with horizontal flip.

AppID:	org.nktnet.middor
Author:	Khiet Tam Nguyen
License:	AGPL-3.0-only
Donation:
InRepoSince:	2026-01-15
LastRepoUpdate:	2026-02-07
LastAppUpdate:	2026-02-06
LastVersion:	0.1.7
Categories:	Connectivity
APK source:	Github
Google Play:	Check if it's there

Middor is a free and open-source Android application for mirroring apps on your device.

With built-in support for horizontal flip and 180° rotation, Middor can be used to:

Display apps on a HUD
Project content onto a car windscreen (e.g. Google Maps navigation)
View mirrored images and videos

Middor only supports devices running Android 14 QPR2 or higher, as it relies on the single app screen sharing feature. For more details, see Android 14 - App Screen Sharing: https://developer.android.com/about/versions/14/features/app-screen-sharing

For usage instructions, see https://github.com/nktnet1/middor/discussions/2

Permissions

SYSTEM_ALERT_WINDOW: to draw a mirror overlay on top of other apps
FOREGROUND_SERVICE: to run the mirror service continuously while the overlay is active
FOREGROUND_SERVICE_MEDIA_PROJECTION: for capturing the screen content of the underlying app
POST_NOTIFICATIONS: (optional) to display the mirror service notification with additional actions

Contact

Questions/Feature Requests

Create a Q&A for questions and Ideas for feature requests on GitHub discussions: https://github.com/nktnet1/middor/discussions

Bugs/Issues

Report bugs by creating a GitHub issue describing the problem and how it can be reproduced: https://github.com/nktnet1/middor/issues

Please also include your device model, app version and android version.

Other

For all other inquiries, please reach out to: support@middor.nktnet.org

WhatsNew:

## Changes

- feat: added warning for Android 14 devices about requiring minimum QPR2
- deps: bump package versions (jetpack compose)

Hint: This app is available in both, F-Droid Main and IzzyOnDroid repos.

Download Metadata Source Issues ChangeLog

While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device. Some clients have this repo enabled by default, e.g. Neo Store, Droid-ify, or, of course, the IzzyOnDroid client by Sunil. With others (like the official client) you'll have to add this repo manually (see the hint on top of the package list for how to do that).

Packages

Version 0.1.7 (2026-02-07)

Android Versions:

Target: 16.0
MinVer: 14.0
ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

Permissions:

Malware-Check:Passed

11 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
DataStore (Development Aid)
stores data asynchronously, consistently, and transactionally, overcoming some of the drawbacks of SharedPreferences.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Androidx Graphics (Utility)
leverages graphics facilities across multiple Android platform releases.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Jetpack WindowManager Library (Utility)
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Payment Modules:

None found
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Ads & Analytics:

None found
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Download (2.6 M)

Version 0.1.6 (2026-01-28)

Android Versions:

Target: 16.0
MinVer: 14.0
ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

Permissions:

Malware-Check:Passed

11 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
DataStore (Development Aid)
stores data asynchronously, consistently, and transactionally, overcoming some of the drawbacks of SharedPreferences.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Androidx Graphics (Utility)
leverages graphics facilities across multiple Android platform releases.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Jetpack WindowManager Library (Utility)
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Payment Modules:

None found
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Ads & Analytics:

None found
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Download (2.6 M)

Version 0.1.5 (2026-01-20)

Android Versions:

Target: 16.0
MinVer: 14.0
ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

Permissions:

Malware-Check:Passed

11 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
DataStore (Development Aid)
stores data asynchronously, consistently, and transactionally, overcoming some of the drawbacks of SharedPreferences.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Androidx Graphics (Utility)
leverages graphics facilities across multiple Android platform releases.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Jetpack WindowManager Library (Utility)
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Payment Modules:

None found
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Ads & Analytics:

None found
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.

Download (2.6 M)

Middor

Packages

Version 0.1.7 (2026-02-07)

Android Versions:

Permissions:

Features:

Malware-Check:Passed

11 Libraries detected:

Version 0.1.6 (2026-01-28)

Android Versions:

Permissions:

Features:

Malware-Check:Passed

11 Libraries detected:

Version 0.1.5 (2026-01-20)

Android Versions:

Permissions:

Features:

Malware-Check:Passed

11 Libraries detected: