The HammerTech Sign-in app works as an electronic sign-in book. Workers and/or visitors who are already in the HammerTech system can use this app to sign in and sign out when on site. The information collected from the HammerTech Sign-in app is directly entered into the daily Site Diary, and automatically calculates the number of workers and their hours on each project. The HammerTech Sign-in app also generates a list of people on site for the project, which can be used for communication and any emergency situations.

What’s New

Version 1.5

- Improved handling of poor connectivity during sign off
- Additional messaging on signature page in some regions
- Warning message now shown when a project is not correctly configured

App Privacy

The developer, HammerTech, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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