About 123onsite
123onsite is a productivity app published by 123erfasst.de GmbH under the package name de.erfasst.v3. It is delivered as a compact download of 11.4 MB, so it installs quickly and stays light on the device once it is on board.
What the app is
The listing places 123onsite squarely in the productivity category, which means it is built to support day-to-day working routines rather than entertainment or media use. Its developer, 123erfasst.de GmbH, is the party responsible for the build, so any questions about the app's origin can be traced straight to that company.
Current build details
The latest version carried by this listing is 4.220.1.0, dated 2026-10-03. Users who already have an earlier build on their phone can check their installed version against this number to confirm whether an update is pending for them.
Device compatibility
The build requires Android 7.0 or newer. Anything running a more recent system falls comfortably inside that range, so owners of newer devices should have no trouble installing it. Because the whole package occupies 11.4 MB, it will not put meaningful pressure on internal storage, and even phones with limited free space should be able to accommodate it alongside their other apps.
Rating and availability notes
This listing does not record a content rating, so no age guidance is available from these details. That absence does not affect installation, but it is worth knowing if you rely on content ratings when choosing what to put on a shared or family device.
APK Information
- Version
- 4.220.1.0
- Size
- 11.4 MB
- Android
- 7.0+
- File type
- APK
- Updated
- Oct 3, 2026
- Package
- de.erfasst.v3
- Developer
- 123erfasst.de GmbH
Features
Productivity tool
Lightweight install
Developer
123erfasst.de
Frequently Asked Questions
Which version does this listing offer?
The listing carries version 4.220.1.0 of 123onsite, dated 2026-10-03. If you already have the app installed, compare the version shown in your device's app information with this number to see whether you are running the current build.
Will it run on my phone?
The build requires Android 7.0 or newer, so devices on that system or a later one can install it. Owners of newer devices are well within the supported range. Check your Android version in your device settings before installing to confirm compatibility.
How much storage does the app take up?
The package is 11.4 MB, which is small for a mobile application. It should install without consuming much internal storage and will leave plenty of room for your files and other apps, including on devices with limited free space.
Who develops 123onsite and what kind of app is it?
It is built by 123erfasst.de GmbH and filed under the productivity category, meaning it is aimed at supporting work and organisational tasks. The package name it installs under is de.erfasst.v3.
Is there a content rating for this app?
No content rating is recorded for this listing, so there is no age guidance available from these details. Anyone choosing apps for a shared or family device should be aware of that gap before installing.
