📈Last 7 days+19 installs — 12% faster than the week before (+17) · 2/day since Oct 7
🏆Among Tools appstop 30% by installs gained this week (940 peers growing)
🛠Updatesdormant · updated 170 days ago
Installs since launch
+73 installs
since Oct 7
Update history
2.5.5.18May 25, 2026 · seen Oct 20, 2026
modify Demo NFC
Only the current version so far — new entries appear as the app ships updates.
BT Card is a tools app by Shanghai Smarfid Security Equipment Co., Ltd. with 5,000+ downloads (about 7.3K estimated). +19 installs in the last 7 days. Released Feb 17, 2017. Install growth, rank history, SDKs and ad networks.
From the store listing: “An App to replace proximity cards to unlock door by bluetooth connection.”