Rule-Base
Referee Rules: Confident Calls
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
"Is my call correct?" AI instantly eliminates doubt. Rule-Base supports all levels using current international rules. Perfect for study and on-field support.
【Rule-Bace: AI Rule Assistant for Referees】
"Was that the right call according to the rules?"
"It's my first time refereeing... I'm worried if I fully understand the rules."
"Reading through long, complex competition guidelines and local rules is exhausting..."
Whether it's a doubt during a match, a desire to sharpen your refereeing skills, or the need to check local tournament rules—Rule-Bace is the ultimate partner to resolve referee anxieties and help you step onto the field or court with confidence.
■ Key Features
No More Reading Required! Direct Upload of Competition Guidelines (Images & PDFs)
Simply take a photo or upload a PDF of competition guidelines or local rule documents.
Beyond game regulations like water break rules, you can easily check facility and operational rules like "Where is the parking lot?", "What time do gates open?", or "Are cameras/prohibited items allowed?". Just ask the AI what you need to know, and it will instantly extract and answer without you having to read through dense documents.
High-Speed AI Rule Search
Ask in plain language like "Is this scenario a foul?" or "How do we restart play in this situation?", and the AI instantly provides answers from vast rule datasets, explained in a beginner-friendly way.
Supports International Rule Standards
Based on official international rules for Soccer, Baseball, Basketball, Tennis, Volleyball, Futsal, and more. Always provides accurate support based on the latest regulations.
Cross-Sport Support
Great for referees managing multiple sports. Easily switch between sports to immediately reference rules specific to each game.
Perfect for Pre- and Post-Match Study
Ideal for clearing up doubts during matches, reviewing rules before a game, or studying material from training seminars. Even inexperienced referees can build knowledge and steadily improve their skills.
■ Recommended For
・Referees tired of reading thick rulebooks and detailed tournament guidelines every time.
・Anyone who spends too much time searching for specific info like "parking" or "prohibited items" in event documents.
・Beginners who want to learn rules from the basics.
・Those who want a quick and accurate way to check official rules.
・Coaches and referees who want to make pre-game rule reviews a habit to boost confidence on the field.
・Multi-sport referees who need to keep rules organized for different sports.
【Disclaimer】
This app is a third-party tool developed by referencing the official international rules of each sport. It has no direct relationship with any sports governing bodies and is not an official application. While AI responses aim to support you based on official rulebooks, the final decisions during actual matches rest with the referees. For the latest rule changes and operational policies, please also refer to the official websites of the respective sports organizations.
■ Terms of Service
https://tan-principle-379.notion.site/Terms-of-Service-3723b0dd7e4580e7af79d99b53de06a3?source=copy_link
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
1.1.1
・Direct Upload of Competition Guidelines (Images & PDFs)
You can now upload photos or PDF files of competition guidelines and local rules directly to ask the AI questions. This greatly reduces the time and effort needed to read through detailed regulations and lengthy documents.
・Improved AI Accuracy & Performance
We revised the prompt structure to deliver faster, more accurate, and easier-to-understand answers.
・Review Feature & Minor Bug Fixes
Optimized underlying logic and improved overall app stability for a smoother user experience.
The developer, SEIICHI MIYAKO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Contact Info
- User Content
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Search History
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SEIICHI MIYAKO
- Size
- 47 MB
- Category
- Sports
- Compatibility
Requires iOS 15.0.0 or later.
- iPhone
Requires iOS 15.0.0 or later. - iPad
Requires iPadOS 15.0.0 or later. - iPod touch
Requires iOS 15.0.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Rule-Base Pro $2.99
- Copyright
- Copyright © 2026 Seiichi Miyako. All rights reserved.