RisshoLib vs Four Operations Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RisshoLib
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「RisshoLib」は、立正大学の図書館リソースを最大限に活用するための一体型アプリケーションです。手のひらの上で図書館の全情報が手に入り、利便性とアクセシビリティを高めます。 このアプリを使用すると、いつでもどこでも立正大学図書館の利用可能な開放時間を確認することが可能になります。予定を立てて勉強時間を最大限に活用することができます。 また、「RisshoLib」は本の探し物を容易にします。各本の具体的な場所を示し、図書館内を迷うことなく探し物を見つけることが可能になります。 さらに、強力な検索機能により、立正大学図書館の膨大な蔵書から目当ての本を簡単に検索することができます。一冊の本を探す時間を大幅に短縮し、学習や研究に集中することができます。 「RisshoLib」は立正大学図書館の全てを管理し、最適化された学習環境を提供します。学生生活の必需品として、「RisshoLib」をぜひご利用ください。
Four Operations Math
This puzzle game challenges players to create mathematical equations using four numbers and basic arithmetic operations to reach a target value. It promotes logical thinking and problem-solving skills through engaging gameplay with varying challenges.
- Create mathematical equations
- Use four numbers and operations
- Achieve target values
- Logical thinking development
- Basic and Custom game modes
- Intuitive tap and drag controls
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This is a challenging puzzle game in which the player creates a mathematical equation that achieves a target value using four given numbers and four arithmetic operations. Players must use their logical thinking and creativity to reach a different target value each time. ■ Rules * Use all numbers: All four numbers provided must be used one at a time. * Four arithmetic operations and parentheses: Add, subtract, multiply, divide, and use parentheses as many times as you like. * Target value achievement: Try to make the formula match the target value, which changes each time. ■ Operation * Tap a panel: Tap the bottom panel to add it to the end of the formula. * Drag a panel: Drag a panel to add it anywhere in the formula. * Drag & Drop: Added panels can be dragged and dropped to any desired location. * Delete panel: Added panels can be deleted by double tapping on them. ■ Game Modes * Basic Mode: The target value and the four numbers to be used are determined at random. * Custom Mode: You decide the target value and the four numbers to be used. ■ Features * Intuitive operation: Simple and easy-to-use controls allow anyone to enjoy the game immediately. * Different challenges each time: The target value changes each time, so there is always a fresh challenge awaiting you. * Promotes logical thinking: Solving puzzles develops your logical thinking and problem-solving skills. Test your computational and logical thinking skills and hone your skills while having fun. Let's give it a try!
Screenshots
Verdict
The clearest difference is iOS requirement: RisshoLib at 11.0 against Four Operations Math's 17.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
RisshoLib ships an update weekly, Four Operations Math every 8 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.
| Parameter | RisshoLib | Four Operations Math |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 8 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 40 MB | 21 MB |
| Age rating | 17+ | 4+ |
| Developer | Ryutaro Iseki | Romiick LLC |
In-app purchases
RisshoLib
No in-app purchases
Four Operations Math
No in-app purchases
Questions
Is RisshoLib free?
Is Four Operations Math free?
Do RisshoLib or Four Operations Math have ads?
Which is updated more often, RisshoLib or Four Operations Math?
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