📈Last 7 days+51 installs — 53% slower than the week before (+109) · 6/day since Oct 7
🏆Among Tools appstop 19% by installs gained this week (1237 peers growing)
🛠Updatesquiet · updated 57 days ago
Installs since launch
+160 installs
since Oct 7
Update history
1.0.4Sep 16, 2026 · seen Oct 25, 2026
Added a link to TradeTools — 62 trade calculators in one app, 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.
NFPA Code Reference Offline is a tools app by ZkDev with 100+ downloads (about 225 estimated). +51 installs in the last 7 days. Released Sep 9, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Search NFPA 10, 13, 14, 20, 25 and 72 requirements offline on the job.”
