FishCast - 釣果予測

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Content rating
Everyone
10+
Downloads
Content rating
Everyone
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About this app

FishCast is a fishing app that predicts your catch based on scientific data.

No more wondering, "Is today a good day for fishing?" It analyzes seven factors—tides, atmospheric pressure, water temperature, weather, time of day, topography, and oxygen environment (estimated)—using a unique algorithm to predict your catch for the day on a score of 0 to 100.

-- Main Features ---

[Catch Prediction]
A unique prediction engine integrating seven environmental factors. It automatically suggests the optimal times for fishing (golden hours) at dawn and dusk. Optimized predictions for each of the 78 target fish species provide information tailored to your fishing strategy.

[Over 1,700 Fishing Spots Nationwide]
Covers all prefectures from Hokkaido to Okinawa. Includes information on topography, water depth, target fish species, access, parking, and fishing restrictions for each fishing spot. "Recommendations for You" suggests fishing spots close to your current location.

[Tidal Graph]
Visually displays high and low tide times and water levels. Based on the Japan Meteorological Agency's lunar calendar, the app determines tide types (spring tide, neap tide, slack tide, and young tide), achieving accuracy close to that of Japanese tide tables.

[Recommended Fishing Method under These Conditions]
Based on the current tide, time of day, and season, it suggests the most suitable fishing method. Supports 78 fish species and 118 fishing methods.

[AI Fish Species Recognition]
Simply take a photo, and the AI ​​automatically identifies the fish species. Recording your catches is even easier.

[Catch Submission - Completed in 3 Taps]
Just take a photo and select the fish species. Weather, atmospheric pressure, tides, and forecast scores are automatically entered from GPS. You can submit without registering an account.

[Catch Map & Timeline]
Share everyone's catches on a map and timeline. See at a glance what's being caught where.

--- Recommended for those who ---

* Want to make the most of their limited holidays with the best fishing trips
* Enjoy shore fishing from breakwaters, fishing ports, surf, etc.
* Want to plan their fishing trips based on data
* Want to explore new fishing spots

Predictions are statistical guidelines and do not guarantee catches. Please enjoy fishing safely.
Predicts whether you'll catch fish today on a 0-100 scale based on tides, weather, and water temperature. Supports over 1,700 fishing spots nationwide.
Updated on
Sep 8, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

▼ 修正
・地図で現在地を取得できない場所(屋内、電波の弱い堤防など)でアプリが終了してしまう不具合を直しました
・写真からの魚種判定が候補を出せないことがある不具合を直しました
・釣果写真のアップロードに失敗しても気づけない問題を直しました

▼ 改善
・予測できる魚種を76種に増やしました
・位置がずれていた釣り場の座標を修正しました
・予測スコアが実際どのくらい当たっているかを、スコア帯ごとに公開しました
Content rating
Everyone
Users Interact
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App support

About the developer
倉田雄也
tb.tk_y0125@icloud.com
Japan