📈Last 7 days+355 installs — 54% slower than the week before (+780) · 41/day since Oct 7
🏆Among Books & Reference appstop 2% by installs gained this week (188 peers growing)
⭐Rating steady at ★ 2.28 since Oct 7
🛠Updatesdormant · updated 142 days ago
Installs since launch
+1,135 installs
· +2 ratings
since Oct 7
Update history
1.8.6Jun 25, 2026 · seen Oct 25, 2026
App Updates<br>* Infrastructure updates<br>* Other minor fixes and improvements<br><br>If you run into an issue or have a question, please contact us so we can help.<br><br>If you love this app, please leave a review!<br>
Only the current version so far — new entries appear as the app ships updates.
NGC is a books & reference app by Certified Collectibles Group with 100,000+ downloads (about 136K estimated). +355 installs in the last 7 days. Rated 2.3 from 494 ratings. Released Jan 6, 2017. Install growth, rank history, SDKs and ad networks.
From the store listing: “Provides collectors with valuable coin insights and verifies NGC certifications.”
