AppMarketSpy › Education › 19×19
19×19 icon

19×19

Times Tables & Mental Math
JINGZHE JIANG · Education
View on App Store ↗
—average rating
0ratings
+0new ratings, last 7 days
—not in top charts now
🔒 Rating history23 days of daily rating and rating countGet Pro access

App info

Developer
JINGZHE JIANG
Category
Education
Released
Sep 25, 2026
Version
1.2 (Oct 21, 2026)
Price
$2.99
Size
5.0 MB
Requires
iOS 18.0
Age rating
9+
Languages
English, Japanese, Korean, Simplified Chinese, Traditional Chinese

In-app purchases

none
Current prices, App Store US.

About 19×19

Build confidence with multiplication from 1 to 19 through short lessons, practice, and review. A 10-DAY LEARNING PLAN Learn 190 fact pairs, organized by calculation method across 10 lessons. Swapping the factors covers all 361 ordered combinations. Explore doubling, breaking numbers into tens and ones, and working back from 20. ASSESSMENT AND REVIEW Start with an optional 20-question assessment. Spaced review uses your answers to bring back facts that need practice, with mistakes and due facts taking priority. FORWARD AND REVERSE PRACTICE Find the product: 12 × 13 = □ Find the factors: 156 = □ × □ Choose either mode or mix them. Factors range from 1 to 19. Both factor orders are included, and reverse questions accept any valid factor pair within that range. YOUR PACE, YOUR TIMER The default is 5 seconds per question. Choose 3, 5, 6, or 10 seconds, or set a limit from 1 to 30 seconds.…
🔒 Developer intelligencelegal entity, account ID and every app from this sellerGet Pro access