TW888 vs 海の幸ルールブック
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TW888
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This app is used for garage door copying, adding remote control, car remote control, car matching remote control, chip copying, IC/ID copying
海の幸ルールブック
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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.
Screenshots
Verdict
The clearest difference is update cadence: 海の幸ルールブック at every 2 days against TW888's every 6 weeks. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
TW888 ships an update every 6 weeks, 海の幸ルールブック every 2 days. The most recent releases landed on October 27, 2026 and November 5, 2026 respectively.
| Parameter | TW888 | 海の幸ルールブック |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 37 MB | 81 MB |
| Age rating | 17+ | 4+ |
| Developer | 武汉文伟电子技术有限公司 | ERIKO KONNO |
In-app purchases
TW888
No in-app purchases
海の幸ルールブック
No in-app purchases









