Affordable glasses
Onedollarglasses offers a solution for deprived people to enable clear sight: The glasses cost 1 US$ (material costs) and are manufactured locally without requiring electricity: https://www.eindollarbrille.de/en/home
Mental health support
The friendship bench in Zimbabwe is an organisation providing mental health support through community workers offered on public benches: https://www.friendshipbenchzimbabwe.org
Commonground in Michigan, USA, offers support in mental health emergencies with a variety of services: https://commongroundhelps.org
Sati App provides psychological first aid through connecting listeners and people in need, i.e. in Thailand: https://www.satiapp.co
Healthcare community service
Grameen America, a microloan organisation in the US, offers a programme to women with health workers delivering basic services (testing blood pressure, dental screening, cancer consultation...) and conducting workshops. https://www.grameenamerica.org/communityhealthinitiative
Detecting Tuberculosis
Apopo in Belgium trains rats to detect Tuberculosis in samples provided by clinics (i.e. in Tanzania): https://apopo.org
First aid support in terms of heart attacks
Germany based "mobile Retter" (mobile saviours) has developed a system supported by smart phones, through which people calling emergency also activate a first aid person nearby so that they can be treated earlier: https://www.mobile-retter.org
Heat management
German city Bielefeld offers a "heat portal" including a telephone service, behavioral tips (i.e. for the elderly), when it is very hot and a service called "heat assisstents", where especially trained volunteers support people in need in terms of home help: https://www.bielefeld.de/node/29050