123onsite, the app for mobile construction site management: Start your free 14-day trial today

123onsite trial

123onsite will not not simply replace you paper time sheets, but also enables you to optimize your construction site management - from anywhere, at any time. Convince yourself of the advantages of digital time recording with extensive additional functions that are especially designed for the construction industry.

  • Simply use our mobile app for accurate and consistent documentation by text, voice or photo directly on the construction site and further processing of the data in the office.
  • Complete overview with the desktop application: All your construction sites with the most important information can be monitored from your office. Precisely plan equipment, materials and employees.
  • Fast and easy daily reports – both on the road and in the office, the construction repots can be created at any time thanks with all recorded data from the field.
  • Save time and money – costly and time-consuming double entries are a thing of the past.
  • Data you can trust!

Start you free trail today!

How to access 123onsite

123onsite consists of a web-based solution and a mobile app.


After you have registered for 123onsite, you will receive an email from us. Please confirm that you have received the email by clicking on the link in that email.


You can then log in to the web portal using the password you provided during the registration process. Next, go to the app store with your mobile device (smartphone or tablet) and download the 123onsite app. Start it with the same password as the web app.


Now you’re ready to go!

123onsite trial
123onsite trial

Your first steps with 123onsite

To test of 123onsite and its functions, we recommend that your first enter our master data.


To do this, go to the web application of 123onsite and enter information like construction site, supplier, material, etc….if you need any help please contact us trough the form below.

Quickly find the answers you need

Our FAQs contain answers to our customers’ most frequently asked questions regarding our apps. If you would like to know more about 123onsite solutions, we would be happy to advise you in person. Just fill out our contact form and we will get back to you as soon as possible.