. 2020 Jun 3;4(6):e16420. doi: 10.2196/16420
©Avijit Sengupta, Theresa Beckie, Kaushik Dutta, Arup Dey, Sriram Chellappan. Originally published in JMIR Formative Research (http://formative.jmir.org), 03.06.2020.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Formative Research, is properly cited. The complete bibliographic information, a link to the original publication on http://formative.jmir.org, as well as this copyright and license information must be included.
Figure 2.
Example of graphic user interfaces of interventions (congratulatory message for achieving goal).