In the stationary study the MMSE was used. I'm looking for the similar tool that I could use in a mobile application for people over 60 years old.
You might make sure you get a good audience. If you know some facilities with elderly, that will be a plus. I have seen in many cases an app did not work because they do not access or they are not interested in or other reasons.
Consider using the MoCA (Montreal Cognitive Assessment) which is a commonly used alternative to the MMSE. In fact some prefer the MoCA. To allow participants to use it on a mobile app you can use something like REDCap to program it, generate a corresponding link and then allow access to it on any internet-enabled device.
The MMSE should not be administered to persons with a master's degree or above. There are also practice effects = people download from the internet and "practice." I concur with Christopher that the MoCA is more accurate and they have a version specifically for virtual settings.
