Comparison

QuizBuzzerX vs 脳速算

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

Head to head
About

QuizBuzzerX

Transform a single device into a group quiz buzzer and scorekeeper. A host reads questions, players buzz in, and answers are marked right or wrong. The app displays the pressing order and keeps score on the same screen.

Highlights
  • Single device quiz buzzer
  • Host reads questions
  • Player buzz-in functionality
  • Mark answers right/wrong
  • Display pressing order
  • Scorekeeping
  • Customizable player numbers
Features
Read full description

Turn one phone into a quiz buzzer for your group. A host reads the questions aloud, players buzz in, and you mark answers right or wrong. See the pressing order and keep score on the same screen. HOW TO PLAY 1. Gather around one device. A host reads questions from a source of their choice. 2. Players tap their buzzers. The numbers on the buttons show the pressing order. 3. The host marks each answer with ○ or ×. Correct and incorrect answer counts appear beside each buzzer. 4. Reset the pressing order for the next question without clearing the score. Use Settings to reset scores during the game. MAKE IT YOUR GAME Choose the number of players, sound and text size in Settings. Supports 1–6 players on iPhone and 1–8 on iPad. Enable Endless Chance to pass the turn to the next player after a wrong answer. OPTIONAL QUESTIONS Play without entering any questions. If you want questions displayed in the app, add your own manually or import a CSV file. Built-in Japanese question packs are available with the device region set to Japan. Read-aloud voices support Japanese only; English question packs and voices are not included. QUIZBUZZER PLUS An optional one-time purchase removes ads and the limits on saved quiz lists and questions. Purchases can be restored with the same Apple Account.

About

脳速算

Features
Read full description

脳速算は、フラッシュ暗算やスピード計算で計算力と瞬発力を鍛える脳トレゲームです。シンプルだけど奥が深い計算チャレンジに挑戦し、スコアをどんどん更新しよう! 遊び方&特徴 ・フラッシュ暗算モード – 順番に表示される数字を計算して答えよう! ・ 速算モード – 制限時間内にできるだけ多くの計算を解いてスコアを競おう! ・ 難易度が選べる – 初級から上級まで、自分に合ったレベルで挑戦可能! ・制限時間を選べる – 30秒 / 60秒のモードで自分のペースに合わせて挑戦! ・ スコア記録機能 – 異なるモードや難易度ごとにスコアを確認し、自己ベストを目指せる! ・ 今後も新モードを追加予定! – さまざまな計算チャレンジを楽しめるようアップデート予定

Screenshots

QuizBuzzerX2 screens
脳速算4 screens

Verdict

The call

The clearest difference is in-app purchases: 脳速算 at none against QuizBuzzerX's 2. 脳速算 also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.0). QuizBuzzerX's advantage is update cadence (weekly vs every 5 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. QuizBuzzerX sells 2 one-off in-app purchases. 脳速算 asks for nothing beyond the download.

UpkeepUpdate frequency

QuizBuzzerX ships an update weekly, 脳速算 every 5 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 4 level
QuizBuzzerX versus 脳速算: the parameters behind the verdict, then further details
ParameterQuizBuzzerX脳速算
PriceFreeFree
Positive reviews80.0% of reviews—
Update frequencyWeekly — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size10 MB43 MB
Age rating4+4+
DeveloperYoshitaka TanakaTatsuya Kawai

In-app purchases

2 purchases

QuizBuzzerX

One-time2
  • 初級・中級者向けの早押し問題集400問$0.49
  • QuizBuzzer Plus$4.99
None

脳速算

No in-app purchases

Questions

Is QuizBuzzerX free?
QuizBuzzerX is free to download, with in-app purchases available.
Is 脳速算 free?
脳速算 is free to download, with no in-app purchases.
Do QuizBuzzerX or 脳速算 have ads?
QuizBuzzerX shows ads; 脳速算 does not.
Which is updated more often, QuizBuzzerX or 脳速算?
QuizBuzzerX ships an update weekly, and 脳速算 every 5 months. Most recently, QuizBuzzerX was updated on November 7, 2026 and 脳速算 on November 8, 2026.

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