The data exporting options and the reports that are searchable, which makes it easy to filter and sort subjects. I find it relatively easy to anonymize the data. Being able to upload PDFs is really helpful for saving forms and tests that you can always use to check the instruments with.

Free to use in most academic medical centers, has all of the features you need.

1. Form designer is user-friendly and customizable according to paper CRF. 2. Can easily program complex skip patterns and logic. 3. Query tracking within form is fantastic, which saves lot of time tracking outside in excel or anything. 4. Dashboard feature provides all insights in a glance concerning the completeness of the forms. 5. Data export in all possible analytical data formats is possible like csv, spss, stata, etc.