Install
Tools
Air & water quality monitoring
7 tools compared: how each is priced, where it runs, and what to consider instead.
| Tool | Pricing model | Free tier | Open source |
|---|---|---|---|
| Aclima Mobile and fixed sensor networks that map street-level air pollution for cities, utilities and regulators. | Quote only | No | No |
| BreezoMeter Air quality and pollen data engine, acquired by Google, now offered as the Air Quality and Pollen APIs on Google Maps Platform. | Usage-based | Yes | No |
| Clarity Solar-powered, cellular-connected outdoor sensor networks and dashboard sold as a monitoring service to cities and agencies. | Quote only | No | No |
| IQAir Swiss air-quality company selling consumer and professional monitors and air purifiers, whose data feeds its public AirVisual map. | Subscription | Yes | No |
| Kando Wastewater intelligence platform that monitors sewer networks in real time to trace pollution sources and industrial discharge. | Quote only | No | No |
| OpenAQ Nonprofit that aggregates open government and low-cost-sensor air quality data worldwide into one free API. | Open source + paid | Yes | Yes |
| PurpleAir Low-cost outdoor and indoor air quality sensors whose PM2.5 readings feed a free public real-time map. | Free tier + paid | Yes | No |