Colab.re - Brazilian municipal app with neighbourhood reports
Brazilian civic-engagement app where residents photograph and post urban problems (dengue hotspots, potholes, broken streetlights) geotagged to neighbourhoods. Reports flow to city hall for action and are visible to other residents who can upvote/comment. Won UN award as best urban app and a top-5 Government & Participation app.
Reports are tagged by neighbourhood and visible on a public map; per-neighbourhood report counts, resolution rates, and engagement (upvotes, comments) are surfaced. City halls publish neighborhood-level dashboards using Colab data; the published comparisons between neighbourhoods create implicit ranking.
Multiple residents must independently upvote/corroborate a report for it to gain weight - the platform requires intra-neighbourhood collective action to surface real problems. Residents in the same bairro often coordinate via the app to push city hall on shared issues.
Lusophone civic-tech example rarely cited in English-language community-building discussions. Combines a SeeClickFix-like reporting layer with neighbourhood-level dashboards and city-government accountability - a richer variant than the basic 311-style apps already excluded.
Others in the same family
Wandrer.earth - 'every street' completion with area leaderboards
Gamified exploration platform that ingests Strava activities, compares against OpenStreetMap road/path data, and tells users which streets in their city/neighbourhood/county they haven't yet covered. Awards milestones at 25/50/75/90/99% completion of geographic areas. Includes public leaderboards by area showing top Wandrers for each city, neighbourhood, county.
Cool Block / Cool City Challenge (Empowerment Institute)
Five-month, nine-meeting structured program where 5-8 households on a city block work together on carbon reduction, disaster resilience, water stewardship and neighbourhood livability. A city launches a campaign and recruits Cool Block Leaders, who invite neighbours onto a team. Block teams then aggregate into 'Cool Neighbourhoods' of ~10 blocks. Pilot achieved 32% average household carbon reduction and won NASA's outstanding sustainability solution.
Decidim process-groups + Barcelona/Helsinki/NYC participatory budgeting district tiers
Decidim's 'process groups' feature is explicitly designed for grouping parallel participatory budgets per district/neighbourhood. NYC's PB ran in 30 of 51 council districts in 2021-22, each with at least $1M to spend, residents drop pins on a map to pitch ideas. Helsinki's OmaStadi splits city budget by area (Itäinen, Eteläinen, Pohjoinen, etc.) with separate ideation, deliberation and vote per area.
Chronica Mobilis
Serious pervasive game in Barcelona Raval (a gentrifying immigrant neighborhood) where teams of players move through real streets engaging with situated audio/visual storytelling about gentrification and immigration. Documented in Springer's 'Authoring a Serious Pervasive Game for Reflecting upon Urban Spaces' (2018) and cited in JMIR Serious Games 2023 systematic review.
NATIX Network (AI-camera DePIN with country/city leaderboards)
Decentralized 'Internet of Cameras': drivers use the Drive& smartphone app or VX360 dashcam to capture geospatial imagery and earn NATIX tokens. 243k+ drivers across 171 countries; 153M+ km mapped. Partnered with DIMO for cross-rewards.
Beat the Street
Towns are turned into giant 6-week games. Contactless Beat Boxes on lamp-posts give points when players tap a card; teams (schools, workplaces, community groups) compete on live leaderboards. Over 1.9M players, 5,000+ schools, 116 towns.