Numbers 123 Activity Book Lite vs ProbabilityPlayer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Numbers 123 Activity Book Lite
Read full descriptionHide full description
An app for kids to learn numbers 123 and start counting, which give your child basic understanding of mathematics. Its Activity Book Series and kids can Read, Listen, Trace, Write and play Activities. App is a comprehensive Numbers learning activity Application for kids to read, listen, trace & write. They can recognize numbers using different playful activities. App gives you two modes of learning; first to listen & practice writing numbers by tracing and second feature allows Kids to solve set of number counting and recognizing activities under different categories. There are number of activities available in App; - Learning & Writing Numbers - Count the correct Objects - Abacus Activity - Blow specific number Balloons - Catch Numbered Eggs - Count Jelly Beans - Collect different colored buttons - Match Number Blocks The app contains fun graphics which are both memorable & colorful. A must have for your toddlers.
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
Read full descriptionHide 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.
Screenshots
Verdict
The clearest difference is in-app purchases: Numbers 123 Activity Book Lite at none against ProbabilityPlayer's 1. Numbers 123 Activity Book Lite also leads on iOS requirement (10.3 vs 18.0). ProbabilityPlayer's advantage is update cadence (monthly vs every 12 months). On price, ads 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. Numbers 123 Activity Book Lite asks for nothing beyond the download.
Numbers 123 Activity Book Lite ships an update every 12 months, ProbabilityPlayer monthly. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | Numbers 123 Activity Book Lite | ProbabilityPlayer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 12 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.3 — better | 18.0 |
| Further details — not scored | ||
| Size | 71 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Suave Solutions | Motonari Hibi |
In-app purchases
Numbers 123 Activity Book Lite
No in-app purchases
ProbabilityPlayer
- Premium$1.99
Questions
Is Numbers 123 Activity Book Lite free?
Is ProbabilityPlayer free?
Do Numbers 123 Activity Book Lite or ProbabilityPlayer have ads?
Which is updated more often, Numbers 123 Activity Book Lite or ProbabilityPlayer?
Other comparisons
