# 1-Digit Math > Mental math&age-based battles Canonical page: [https://chrome-stats.com/d/id6759549229](https://chrome-stats.com/d/id6759549229) ## Overview - **ID:** `id6759549229` - **Platform:** Apple - **Type:** Apple app - **Status:** Available - **Publisher:** KOTOAPP - **Category:** Family - **Version:** 1.0.6 - **Last updated:** 2026-07-17 - **First published:** 2026-07-16 - **Size:** 94 MB - **Data as of:** 2026-09-09 - **Store listing:** [Apple App Store](https://apps.apple.com/us/app/1-digit-math/id6759549229) - **Website:** [https://koto-app.com/](https://koto-app.com/) - **Privacy policy:** [https://www.koto-app.com/home-ja/one-digit-calc/privacy](https://www.koto-app.com/home-ja/one-digit-calc/privacy) ## Description [Play & Learn! "1-Digit Math" - Compete with Kids Your Age] "My child gets bored with math drills..." "I wish they'd study proactively..." We created "1-Digit Math" to solve these common parenting struggles! Mastering "1-digit calculation" quickly and accurately is the key to eliminating math anxiety. This educational app turns repetitive drill practice into an engaging game that kids will love. [3 Reasons to Choose 1-Digit Math] 1 "Progress Graphs" Boost Motivation Daily scores are saved and displayed on easy-to-read graphs. By seeing their daily growth ("My score went up!"), children build self-esteem and a desire to play "just one more time!" 2 "Age-Based Leaderboards" Compete with players nationwide! Our "Age Filter" lets kids see rankings for their specific age group (e.g., "7-year-olds"). Seeing peers achieve high scores ignites their competitive spirit. You can also view "All Ages" to aim for the ultimate #1 spot. 3 Safe Environment & Premium Plan Designed with an intuitive interface, readable fonts, and fun sounds. To ensure 100% distraction-free learning, we offer an optional "Premium Plan" (one-time purchase) that completely removes all ads forever. [4 Math Modes] ◆ Addition: The crucial first step. Practice 1-digit math until answers pop up instantly. ◆ Subtraction: The next hurdle. Clearing this smoothly builds deep math confidence. ◆ Multiplication: Master the multiplication tables through randomized questions, not just rote memorization. ◆ Division: Train reverse thinking and solidify multiplication basics. [Highly Recommended For:] ▼ Preschoolers: A fun, game-like head start before elementary school. ▼ Elementary Students: A perfect daily warm-up or alternative to paper drills. ▼ Parents & Grandparents: Great "Brain Training"! Compete with your kids and become their biggest rival. [FAQ] Q. Is the app free? A. Basic gameplay, leaderboards, and graphs are entirely FREE. Only the ad-removal "Premium Plan" is paid. Q. Why register an age? A. Strictly to display the "Age-Based Leaderboard." This data remains within the app and is never shared externally. Q. Can I change my profile later? A. Yes, your nickname and age can be easily updated in Settings at any time. [Message from the Developer] The more you practice math, the faster and more accurate you become. We hope your family enjoys tracking progress and climbing the leaderboards together. Just a few minutes a day turns into massive math confidence! Download now and become the #1 "Math Master"! ## Rankings - #1,603,164 — Overall ## Similar extensions and apps - [Math Games for Kids:Arithmetic](https://chrome-stats.com/d/id6747824042) - [Mental Math Kingdom](https://chrome-stats.com/d/id6787438808) - [Math Brainy Kids Quiz Grade 1+](https://chrome-stats.com/d/id1518957817) — 4.60 / 5 - [Daily Math Pro](https://chrome-stats.com/d/id6757311222) — 5.00 / 5 - [Mathy - Kids' Math Companion](https://chrome-stats.com/d/id1213938590) - [MathKids for Primary School](https://chrome-stats.com/d/id6757496020) - [Math Adventure for Kids](https://chrome-stats.com/d/id6761676029) - [Math Adventure Kids](https://chrome-stats.com/d/id6754807803) - [Little Digits](https://chrome-stats.com/d/id6744664786) — 5.00 / 5 - [Math Makers: Kids School Games](https://chrome-stats.com/d/id1558532437) — 4.70 / 5 - [Math up to 100](https://chrome-stats.com/d/id773511890) — 4.00 / 5 - [Math Practice - Games!](https://chrome-stats.com/d/id6458190856) — 5.00 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/id6759549229)