Comparison

覚えよう百人一首 vs Math Grid Calculation Training

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

覚えよう百人一首

Features
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百人一首、何から始めればいい? そんな方にぴったりのアプリです! ふりがな付きだから、お子さんにもおすすめ。 一首ずつ、一文字ずつ、自分のペースで覚えられます。 ◆ 一文字ずつ、ゆっくり覚える 歌が一文字ずつ現れる独自の「リビール」方式。 まずは決まり字まで。そこから少しずつ先へ。 書き下ろしの現代語訳と解説つきなので、意味もセットで頭に入ります。 ◆ 覚えたらチャレンジ 競技かるた風の反応テスト。 読み上げ中に「これだ!」と思ったらタップ。 決まり字から何文字で取れるか、腕試し。 速度も「ゆっくり」から選べます。楽しく学びましょう! ◆ いつでも引ける資料室 「あの歌なんだっけ?」と思ったらすぐ検索。 作者名や歌の一部を入れるだけで見つかります。 歌人の画像やゆかりの地も載っていて、読み物としても楽しめます。 ◆ 自分に合った表示で 表示設定は、漢字+ルビ、現代仮名、旧仮名など6種類。 ルビつきなら漢字が読めなくても大丈夫。 ◆ こんな方におすすめ ・百人一首をこれから覚えたいお子さん ・かるた大会に向けて練習したい方 ・古典は苦手だけど、ちょっと触れてみたい方 一首覚えるたびに、かるたがもっと楽しくなる。 さあ、一首目から始めましょう。

About

Math Grid Calculation Training

Features
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Math Grid Calculation Training is a compact mental math training app inspired by the classic 100-cell calculation method. Compared to traditional 100-cell math exercises, this mini-sized version is quicker and easier to play, making it perfect for short study sessions and spare moments throughout the day. “Regular hundred cell calculation takes too long…” “I want quick brain training and math practice…” Math Grid Calculation Training is the perfect solution for anyone looking for a fast and enjoyable arithmetic training experience. Practice addition, subtraction, multiplication, and other math problems while improving your: * mental arithmetic skills * calculation speed * concentration * accuracy It is recommended for: * elementary school math practice * daily arithmetic training * brain training for adults * quick mental math exercises 【Features】 * Mini-sized grid math training * Quick and easy mental arithmetic practice * Perfect for short breaks and spare time * Improve both speed and accuracy * Fun for both kids and adults * Simple and easy-to-use controls Whether you enjoy math practice, brain training, or daily calculation exercises, Math Grid Calculation Training makes it easy to build a consistent learning habit. Challenge yourself with quick and compact grid math puzzles anytime, anywhere! 【Benefits of Grid Math Training】 Grid math training is a learning method that improves mental arithmetic and calculation speed by repeatedly solving math problems in a grid format. This style of training is also widely known through Professor Kageyama’s arithmetic exercises. Although the rules are simple, regular practice can provide many benefits: * Improve mental math ability Repeated calculation practice helps you solve arithmetic problems faster in your head. * Increase calculation speed Solving many problems within a limited time naturally improves speed. * Strengthen concentration Filling in the grid continuously helps improve focus and attention. * Improve accuracy You can train yourself to calculate quickly while reducing mistakes. * Build study habits Short practice sessions make it easier to continue daily learning and brain training. * Brain training and cognitive exercise Grid math is also popular among adults as a form of brain training and mental exercise. Grid math training is useful not only for elementary school students learning arithmetic, but also for: * middle school students * high school students * adults who want to improve mental math skills By practicing a little every day, you can gradually improve both speed and accuracy while gaining confidence in calculation. Small size of 100-cell calculation: math practice exercise to improve your brain!

Screenshots

覚えよう百人一首4 screens
Math Grid Calculation Training4 screens

Verdict

The call

The clearest difference is in-app purchases: Math Grid Calculation Training at none against 覚えよう百人一首's 1. Math Grid Calculation Training also leads on update cadence (every 2 months vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 覚えよう百人一首 sells 1 one-off in-app purchase. Math Grid Calculation Training asks for nothing beyond the download.

UpkeepUpdate frequency

覚えよう百人一首 ships an update every 4 months, Math Grid Calculation Training every 2 months. Both last shipped on September 12, 2026.

Scorecard2 real differences · 4 level
覚えよう百人一首 versus Math Grid Calculation Training: the parameters behind the verdict, then further details
Parameter覚えよう百人一首Math Grid Calculation Training
PriceFreeFree
Update frequencyEvery 4 monthsEvery 2 months — better
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size47 MB95 MB
Age rating4+4+
DeveloperKoji MurataMasaki Kanno

In-app purchases

1 purchases

覚えよう百人一首

One-time1
  • 広告の削除$1.99
None

Math Grid Calculation Training

No in-app purchases

Questions

Is 覚えよう百人一首 free?
覚えよう百人一首 is free to download, with in-app purchases available.
Is Math Grid Calculation Training free?
Math Grid Calculation Training is free to download, with no in-app purchases.
Do 覚えよう百人一首 or Math Grid Calculation Training have ads?
Both 覚えよう百人一首 and Math Grid Calculation Training show ads.
Which is updated more often, 覚えよう百人一首 or Math Grid Calculation Training?
覚えよう百人一首 ships an update every 4 months, and Math Grid Calculation Training every 2 months. Most recently, 覚えよう百人一首 was updated on September 12, 2026 and Math Grid Calculation Training on September 12, 2026.

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