CAL20000 STAR CHART icon

CAL20000 STAR CHART

YOUNGCHANG KOH(고영창)
★ 5.0 (289 ratings)
⬇ 50,000+ downloads
Est. actual: 73,981
Free
Released: Aug 7, 2011
No in-app purchases
No ads

Signals

3 this week · 1 warning All of this week's signals →
  • 📈Last 7 days +3 installs — 25% slower than the week before (+4) · 0/day since Oct 7
  • ⭐Rating steady at ★ 5.00 since Oct 7
  • 🛠Updates quiet · updated 77 days ago
Installs since launch
0 37K 74K 74K Aug 7, 2011 today
+9 installs · -2 ratings since Oct 7
Update history
26.08.0 Aug 27, 2026 · seen Oct 21, 2026
Version History<br>- V26.08 (Android, Aug 31 2026): Added iOS V3.5&#39;s features to Android<br>- V3.5 (iOS, Nov 25 2020): Added Occultation &amp; Moon-orbit star chart, new chart types (Equinox/Equator, Sun/Ecliptic, Galactic, Oriental/Western constellations), and timezone selection.<br>- V3.0 (iOS, Aug 13 2015): Added the Milky Way and 110 Messier objects to the star chart<br>- V2.5 (Android, Ma
Only the current version so far — new entries appear as the app ships updates.

CAL20000 STAR CHART is a lifestyle app by YOUNGCHANG KOH(고영창) with 50,000+ downloads (about 74K estimated). +3 installs in the last 7 days. Rated 5.0 from 289 ratings. Released Aug 7, 2011. Install growth, rank history, SDKs and ad networks.

From the store listing: “20,000-year lunisolar calendar + live star chart with eclipses &amp; planet events.”