The best alternatives to Airboxlab are Molekule, Plume Labs, and Awair. If these 3 options don't work for you, we've listed a few more alternatives below.
Plume Labs gives you real-time pollution levels in your area, and around the globe. Get live street-by-street pollution maps for the world’s major urban areas, and detailed information about how air quality will evolve over the next 72 hours—just like a weather forecast.
Looking for the Flow personal pollution sensor app? Search for ‘
Flow Air Pollution Sensor'.