The cost of participation — Amplifying democracy by bridging political participation, digital campaigning platforms, and civic crowdfunding. Crossing communities and technologies between Decidim and Goteo "The good reception of digital platforms for citizen participation launched by the municipalities of Barcelona and Madrid –Decidim and Decide madrid– have made evident the need to continue stimulating and accompanying the transition towards civic participation through online platforms. At the same time, only a very small number of citizen proposals currently go beyond the initial phases and become visible to other citizens. We need to create mechanisms so that these initiatives that seek a local impact reach the potentially interested people, and stimulate forms of direct citizen participation. We, at Platoniq lab are designing interventions in digital platforms that potentially stimulate direct democracy in the urban context, as is the case of civic crowdfunding platforms such as Goteo.org. The initiatives proposed in these citizen participation platforms currently have a very short life expectancy or lack visibility. We propose to increase the viability and strength of these proposals by creating a synergy between citizen participation platforms such as Decidim and the civic crowdfunding of Goteo.org and similar platforms I will present concrete ways of implementing this combined system of Crowdvocacy from systematic data analysis and also from the comparative analysis of civic crowdfunding cases, and sharing results and materials of these research activities, namely: 1) a technological analysis at the level of the design programming of a simplified fundraising campaign structure for citizens initiatives in Decidim and 2) the analysis of communities of the two platforms — Decidim and Goteo — to detect the convergences and connections at a sociodemographic level, geographical location, topic, and motivations. 3) a proposal for a Decidim feature aimed at measuring volunteers work impact. The purpose is not just to measure time spent by participants, but also observe the kind of labor that’s happening and needed to sustain a process.