Windows App Mobile vs Building X Access
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Windows App Mobile
Access your Windows PCs, virtual apps, and desktops securely from your iOS or iPadOS device. This unified client simplifies connecting to cloud-based Windows environments, offering features like audio/video streaming and device redirection.
- Access remote Windows PCs and servers
- Connect to managed virtual apps and desktops
- Unified client for cloud-based Windows
- Audio and video streaming
- Device redirection (folders, clipboard, microphone, camera)
- External monitor support
- Easy Entra account switching
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Windows App Mobile for iOS and iPadOS (previously named Remote Desktop Mobile) is your gateway to securely connect to Windows including remote PCs and admin-provided virtual apps and desktops across Windows 365, Azure Virtual Desktop, Dev Box and Remote Desktop Services. Embrace the simplicity of a unified client with Windows App Mobile and connect to your Windows in the cloud with ease and security, from the device of your choice. GET STARTED • Learn more about the features of Windows App Mobile at https://aka.ms/WindowsApp. • Configure your PC for remote access using the information at https://aka.ms/rdsetup. KEY FEATURES • Access remote PCs running Windows Professional or Enterprise and Windows Server. • Access managed resources published by your admin. • Connect through a Remote Desktop Gateway. • Simplified management of your connections and credentials from the Connection Center, including a Favorites page to cater to your unique workflow needs. • Audio and video streaming. • Redirect folders, your clipboard, and local devices such as microphones and cameras. • Connect your iPhone or iPad to an external monitor. • Easily switch between Entra accounts. • Dynamically switch between Portrait and Landscape mode. By downloading Windows App Mobile, you agree to the license (see https://aka.ms/WindowsAppLicense) and privacy terms (see https://aka.ms/privacy).
Building X Access
This application allows users to unlock doors using their smartphone. It provides digital keys for authorized access to specific locations.
- Open doors with smartphone
- Receive digital keys
- Authorized access management
- Secure digital key system
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With Building X Access you will use your smart phone to open doors. With this app you will receive digital keys for doors that you are allowed to open.
Screenshots
Verdict
The clearest difference is review sentiment: Building X Access at 100% against Windows App Mobile's 35%. Building X Access also leads on iOS requirement (16.0 vs 26.0). Windows App Mobile's advantage is chart position (#172 vs unranked). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Windows App Mobile ships an update fortnightly, Building X Access monthly. The most recent releases landed on November 12, 2026 and November 7, 2026 respectively.
| Parameter | Windows App Mobile | Building X Access |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (8K ratings) — better | — |
| Positive reviews | 34.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 8K — better | — |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #172 — better | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 199 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Microsoft Corporation | Siemens AG |
Customer experience
Windows App Mobile
Building X Access
Bugs and requests
Windows App Mobile
Reported bugs
5 issues- Keyboard not working properly
- Frequent crashes and freezes
- Connectivity issues, especially over mobile data
- Resolution and scaling problems
- Incompatibility with newer iOS devices
Requested features
5 requests- Full screen support for external monitors
- Ability to save/sync connection profiles
- Support for multiple monitors and remote apps
- Improved keyboard functionality (F-keys, shortcuts)
- Better mouse/trackpad support (right-click, scrolling)
Building X Access
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Windows App Mobile
No in-app purchases
Building X Access
No in-app purchases
Questions
Is Windows App Mobile free?
Is Building X Access free?
Do Windows App Mobile or Building X Access have ads?
Which is updated more often, Windows App Mobile or Building X Access?
Other comparisons
