Designed by a UK firefighter, this app is useful for those who need a quick and safe start to the day.

What it does:
Shows a simple frost-risk rating based on your location, promting you to either cover your windscreen or not.
Uses temperature, humidity/dew point, wind and cloud cover to predict glass frost formation.
Daily notifications to give you a heads-up to cover and protect your windscreen if need be.
Updates quickly when you open the app or pull to refresh.
Private by design: no account, no ads, no nonsense.

How it works:
On clear, still nights, glass can cool below the air temperature. FrostGuard estimates that cooling and flags when ice is likely—so you know when to cover up the night before.

Who it helps:
Emergency responders & shift workers: retained firefighters, CFRs, ambulance/NHS staff, police, carers
Rural & on-call professionals: farmers, vets, midwives, trades on early call-outs
Transport & fleets: HGV/LGV, delivery drivers, taxi/ride-hail, depots, ground crews
Everyday drivers: commuters and school-run parents