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★★★★★
Average rating on the App Store. Apple doesn't publish how many ratings each star has.
Where this app stands in Hungary, updated 25 Oct 2026
Top free
Not in this chart today
Top paid · All apps and games
#81 ▼40
| Date | Paid |
|---|---|
| 25 Oct 2026 | #81 |
| 24 Oct 2026 | #41 |
| 11 Oct 2026 | — |
Best rank in each country today. Click a country to see its graph.
Built with iOS SDK 18.
WHEN ANCIENT WISDOM MEETS MODERN TECHNOLOGY ! BEAUTIFUL INTERFACE with COMFORT & BIG BEADS ! SUPPORT DECIMAL POINT & NEGATIVE NUMBERS ! 21-COLUMN ABACUS CAN SPEAK ! • LANGUAGES: ENGLISH JAPANESE RUSSIAN CHINESE ARABIC GERMAN FRENCH SPANISH KOREAN NORWEGIAN FINNISH CANTONESE DANISH PORTUGUESE SWEDISH INDONESIAN TURKISH DUTCH VIETNAMESE • LET'S USE ABACUS TO CALCULATE AND HAVE FUN ! 2+2+2+2+2+2+2+2+2+2 = 20 30-3-3-3-3-3-3-3-3-3-3 = 0 1+2+3+4+5+6+7+...+98+99+100 = 5050