UCLA Labor Center


ohmage is an open-source participatory sensing technology platform. It supports expressive project authoring; mobile phone-based data capture through both inquiry-based surveys and automated data capture as well as temporally and/or spatially triggered reminders, data visualization and real-time feedback; privacy respecting data management; and extensible data exploration. All captured data are automatically timestamped, geocoded and uploaded for analysis and visualization.

The ohmage app is currently available for Android (2.2+) and iOS devices. While the original ohmage app was developed for the Android platform, the ohmage team has worked closely with UCLA’s Mobile Web Framework group to create a lightweight version of the app that is compatible with a broad variety of devices, including iOS devices. Learn more by visiting ohmage.org

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[youtube id=”ZJ1GAp2jtZY”] [youtube id=”tYtbgQvzmvg”]

This is a complete guide to using ohmage. The video includes detailed steps for:

  1. Installation, log-in, and utilization

  2. Setting up reminders

  3. Taking surveys

  4. Uploading data manually

Use the chapter annotations at the top of the video to navigate through the guide!


Exploring the ohmage Data Platform


Additional Resources