Free
In-App Purchases

Details

  • Released
  • Updated
  • September 20, 2013
  • April 20, 2026

Features

IkiJime Tool screenshot #1 for iPhone
IkiJime Tool screenshot #2 for iPhone
IkiJime Tool screenshot #3 for iPhone
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About

This app guides anglers on how to humanely dispatch fish using the ikijime method. It offers detailed information, including x-rays and brain locations, for over 200 species, accessible offline.

Humane fish dispatch guide
Ikijime method instructions
X-rays showing brain location
Database of 200+ fish species
Offline functionality
GPS-based sorting
Customizable favorites list
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What's New in IkiJime Tool

3.0.4

April 20, 2026

3.0.4 is our most comprehensive update yet, using completely updated back end code, which results in an optimised search function with speedier lookups of the restructured database. Thanks to Ocean Health Foundation for generously funding this update.

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In-App Purchases

$2.99

Ikijime Tool Extreme

Full access to DB and offline sync

User reviews

Excellent app

I wish I had found this long ago. An excellent guide to reduce fumbling around and get the job done quickly. Well done. I especially like that it works offline, important for when out of mobile coverage.

App Crashes

I paid for this app and the app starts then immediately crashes. :(

FAQ

What is the IkiJime Tool used for?

The IkiJime Tool is used to guide anglers on how to quickly and humanely dispatch fish using the ikijime method, which involves brain destruction. This method is scientifically proven to minimize stress for the fish and maximize its eating qualities.

Does IkiJime Tool work offline?

Yes, IkiJime Tool is designed to work in regions with no phone or internet coverage. After downloading and syncing the app, the entire database is available on your phone, making it accessible wherever you are.

How many fish species are included in IkiJime Tool?

The app provides information, including cool photos and x-rays, for over 200 popular species of fish and sharks targeted by anglers worldwide. This comprehensive database helps users identify and understand the brain location for dispatch.

How does IkiJime Tool help locate the fish's brain?

Once a fish is selected, the app displays its data page, and you can hit the x-ray button. A slide tool shows the brain location superimposed as a white spot over easily recognized external landmarks on the fish.

Is IkiJime Tool free to use?

New users are prompted to purchase the app after 10 database searches. Users who previously had earlier versions of IkiJime Tool can upgrade to the new app without cost.

What devices is IkiJime Tool compatible with?

IkiJime Tool is compatible with iPhone, iPad, and iPod devices. The app is designed for Apple's iOS ecosystem.

How often is IkiJime Tool updated?

The latest version, 3.0.4, was released on April 20, 2026, indicating recent updates. Users can sync the app in the settings to retrieve information on new fish species as they arrive.

What is the age rating for IkiJime Tool?

IkiJime Tool has an age rating of 4+. This indicates it is suitable for users aged 4 and above, suggesting it contains no mature or inappropriate content for younger audiences.