ProbabilityPlayer vs Mathstep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Probability problem practice
- Kyotsu Test focus
- Mathematical probability
- Diagrams included
- University entrance exam prep
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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.
Mathstep
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MathStep is a smart tutor app for university entrance prep and higher-level mathematics. It presents solutions step by step, helping you grasp not only answers but the thinking process. Key Features Step-by-step guidance: Breaks problems into clear, ordered steps Clean math display: Professional, easy-to-read expressions Similar problems: Auto-generated practice with detailed explanations Learning history: Review past problems and answers anytime Advanced keypad: Supports exam-level functions Multi-language: Japanese, English, Korean, and Chinese Who It’s For High school students preparing for entrance exams, university students deepening their skills, adult learners revisiting math, and teachers seeking effective classroom tools. MathStep organizes complex equations into manageable steps—from algebra and calculus to trigonometry and beyond—guiding you with a clear, calm approach. Download MathStep to build understanding and measurable progress.
Screenshots
Verdict
The clearest difference is in-app purchases: Mathstep at none against ProbabilityPlayer's 1. Mathstep also leads on update cadence (every 3 days vs monthly) and iOS requirement (12.0 vs 18.0). ProbabilityPlayer's advantage is ads (none vs shown). 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
Both are free to download. ProbabilityPlayer sells 1 one-off in-app purchase. Mathstep asks for nothing beyond the download.
ProbabilityPlayer ships an update monthly, Mathstep every 3 days. The most recent releases landed on October 13, 2026 and October 30, 2026 respectively.
| Parameter | ProbabilityPlayer | Mathstep |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Motonari Hibi | Takao Ambe |
In-app purchases
ProbabilityPlayer
- Premium$1.99
Mathstep
No in-app purchases
Questions
Is ProbabilityPlayer free?
Is Mathstep free?
Do ProbabilityPlayer or Mathstep have ads?
Which is updated more often, ProbabilityPlayer or Mathstep?
Other comparisons
