Comparison

ProbabilityPlayer vs 再開スイッチ

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

Head to head
About

ProbabilityPlayer

Practice probability problems for the Kyotsu Test, a common Japanese university entrance exam. This app focuses on mathematical probability questions and includes diagrams to aid understanding. It is designed to help students prepare for this specific academic assessment.

Highlights
  • Probability problem practice
  • Kyotsu Test focus
  • Mathematical probability
  • Diagrams included
  • University entrance exam prep
Features
Read full description

This is an app for Kyotsu Test, the test widely used in Japanese university entrance exams, dealing especially with probability problems in mathematics. I have applied to the rights holder to use the test.

About

再開スイッチ

Features
Read full description

再開スイッチは、 勉強を「やめてしまった日」ではなく、 「また始められた日」を評価する学習記録アプリです。 資格試験、受験勉強、社会人の学び直しまで対応。 継続が途切れても、何度でも再開できます。 主な機能 ■ 勉強時間の記録 毎日の勉強時間をシンプルに記録 無理なく続けられる設計 ■ 履歴タブで一元管理 これまでの勉強履歴を一覧で確認 日別・累計の学習時間がひと目で分かる 「どれだけやってきたか」を可視化 ■ AIによる目標勉強時間の提案 目標資格や受験校を入力すると AIが必要な目安勉強時間を算出 資格の場合は、すでに取得している資格・経験を加味して調整 現実的で、続けられる目標を提示 ■ AIチューターによる分析・アドバイス これまでの学習記録をAIが分析 勉強量の偏りやペースをチェック 今後の進め方について具体的にアドバイス 完璧な計画はいりません。 続かなかった過去も、失敗ではありません。 「また勉強を始めた」 その一歩を支えるためのアプリです。 ※このアプリは学習行動の再開を支援するもので、合格を確約するものではございません。 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ProbabilityPlayer4 screens
再開スイッチ4 screens

Verdict

The call

The clearest difference is in-app purchases: 再開スイッチ at none against ProbabilityPlayer's 1. ProbabilityPlayer's advantage is ads (none vs shown). On price, update cadence, 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. ProbabilityPlayer sells 1 one-off in-app purchase. 再開スイッチ asks for nothing beyond the download.

UpkeepUpdate frequency

ProbabilityPlayer ships an update monthly, 再開スイッチ every 2 months. The most recent releases landed on September 27, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 6 level
ProbabilityPlayer versus 再開スイッチ: the parameters behind the verdict, then further details
ParameterProbabilityPlayer再開スイッチ
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyMonthly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better18.2
Further details — not scored
Size9 MB22 MB
Age rating4+4+
DeveloperMotonari Hibisho tsugawa

In-app purchases

1 purchases

ProbabilityPlayer

One-time1
  • Premium$1.99
None

再開スイッチ

No in-app purchases

Questions

Is ProbabilityPlayer free?
ProbabilityPlayer is free to download, with in-app purchases available.
Is 再開スイッチ free?
再開スイッチ is free to download, with no in-app purchases.
Do ProbabilityPlayer or 再開スイッチ have ads?
再開スイッチ shows ads; ProbabilityPlayer does not.
Which is updated more often, ProbabilityPlayer or 再開スイッチ?
ProbabilityPlayer ships an update monthly, and 再開スイッチ every 2 months. Most recently, ProbabilityPlayer was updated on September 27, 2026 and 再開スイッチ on September 24, 2026.

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