暗算Blitz vs ガチ2桁九九
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
暗算Blitz
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99×99までのかけ算でらくらく計算できるパターンを網羅。 苦手なパターンだけを徹底練習できます。 問題ごとに解法が参照できるので「これどうやるんだったっけ？」という疑問もすぐに解決。
ガチ2桁九九
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ガチ2桁九九は、2桁×2桁の暗算力を集中的に鍛えるトレーニングアプリです。 11の段から15の段までを無料で練習でき、答えを入力しながらテンポよく反復できます。正答率、平均タイム、練習数を記録し、日々の成長を確認できます。 プレミアム機能では、16の段以降、20〜99の段、ランダム2桁×2桁、平方数モード、苦手問題トレーニングを解放できます。 暗算を速くしたい人、計算の基礎力を鍛えたい人、2桁九九をゲーム感覚で反復したい人に向けたアプリです。
Screenshots
Verdict
The clearest difference is ads: ガチ2桁九九 at none against 暗算Blitz's shown. ガチ2桁九九 also leads on iOS requirement (15.0 vs 17.6). 暗算Blitz's advantage is update cadence (daily vs every 3 months). On price, in-app purchases and device support 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
Both are free to download. 暗算Blitz sells 1 one-off in-app purchase and ガチ2桁九九 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
暗算Blitz ships an update daily, ガチ2桁九九 every 3 months. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.
| Parameter | 暗算Blitz | ガチ2桁九九 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Toshihide KAWAI | kotobaz |
In-app purchases
暗算Blitz
- プレミアム・ユーザー$14.99
ガチ2桁九九
- プレミアム解放$2.99
