“…As the share of older adults, here understood as people aged 65+, especially in western societies, is increasing it more and more important to design remote and scalable ICT-based activities, such as crowdsourcing, that provide them with cognitive challenges, enable positive interaction and active ageing [1,4,12,20,32]. Crowdsourcing projects, on the other hand can benefit from the massive, and largely untapped, potential of older adults' collective intelligence, experience and time [13,20,32]. Especially that they have proven to be dedicated, diligent and successful contributors [14,20,29,30,32] who are held back not only by inaccessible task-driven project design, which is incompatible with their prevailing motivations [11] and possible age-related cognitive decline in the processing speed and working memory [21] and the idea of worker expendability [3,4,19,23] but also a lack of support mechanisms [4,32], which all result in preventable dropouts, as shown in Fig 2.…”