Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.
Only the current version so far — new entries appear as the app ships updates.
Fire Alarm Calculator NFPA 72 is a tools app by Rizvan Adzhoyan with 50+ downloads (about 60 estimated). +15 installs in the last 7 days. Released Sep 8, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “NFPA 72 detector spacing: smoke, heat, ceiling height, beamed ceilings.”
