海の幸ルールブック
全国の海釣りルールをすぐ確認
Free · Designed for iPad. Not verified for macOS.
Check fishing & harvesting rules before you go. No poaching.
The essential app for anyone enjoying sea fishing, rock pooling,
or shellfish gathering in Japan.
Instantly check rules, size limits, and restricted species for
42 types of fish, shellfish, and seaweed.
"Is this fish big enough to keep?"
"Can I pick up these shells?"
"What's the tide like today?"
All your questions answered in one app.
Harvesting Rules & Species Guide
・Rules for 42 species of fish, shellfish & seaweed
・Clear OK / Caution / Prohibited status at a glance
・Protected species clearly marked (abalone, sea cucumber,
sea urchin, etc.)
・Guide to poaching laws & penalties in Japan
Real-Time Fishing Info
・GPS-based sunrise & sunset times for your location
・Live weather, wave height, wind speed & tide (lunar calc)
・Monthly "in-season" fish updated daily
8 Beginner-Friendly Guide
・What is poaching? Penalties & restricted species
・Dangerous marine life encyclopedia
・How to measure fish size correctly
・Rules & safety tips for shellfish gathering
・Pacific Bluefin Tuna regulations
・How to handle your catch and more
More Features
・Bookmark your favorite species
・Available in Japanese, English & 中文 (Simplified Chinese)
・Species guide works offline
From first-timers to experienced anglers, families to solo fishers.
The must-have app to fish safely and legally in Japan.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
What's New
• Added Traditional Chinese support (for Taiwan and Hong Kong)
• Added Vietnamese support, including species names
Bug Fixes
• Fixed typos in some category and size labels
• Fixed an issue where Bluefin Tuna's regulation status displayed incorrectly
Other
• Updated the Privacy Policy to reflect current app behavior
The developer, ERIKO KONNO, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- ERIKO KONNO
- Size
- 85.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 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, Simplified Chinese, Traditional Chinese, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Eriko Konno