The apps allow conducting the certainty equivalent method (CEM), the iterative choice list procedure (ICL), the multipe price list method (MPL), the single choice list procedure (SCL), and the bomb risk elicitation task (BRET) to elicit individual level risk preferences in different variants and parameterizations by adapting the documented variables in config.py. BRET waas proposed by Crosetto/Filippin (2013) as an oTree application in numerous different variants by simply altering the documented variables in config.py.