GYOSUN - Measure Fish in AR
Catch Log, Size & Photos
Only for iPhone
Free · In‑App Purchases
iPhone
Measure fish in AR, save photos with the size, and keep your catch log on device. Try every feature for five successful AR captures. Complete is a one-time purchase.
GYOSUN measures fish with AR and saves the result with your catch photos on iPhone.
Trace from mouth to tail to place a life-size AR ruler, or measure the straight-line distance between two points. Choose whether to include the measurement overlay in the photo, then take up to five photos of the same catch without resetting the measurement.
Key features
• AR ruler and straight-line measurement
• Catch log with species, size, date, location, and notes
• Up to five photos for each catch
• Centimeters or inches and multiple ruler designs
• Optional saving to the Photos library
• Japanese and English
Local first
Catch photos, measurements, locations, and notes stay on your device. There is no account, advertising, or independent analytics. You can save catches without granting location access.
Try the complete experience
Every measurement mode, ruler design, and quality setting is available for five successful AR image captures. The one-time Complete upgrade removes only the capture limit. It is not a subscription.
Please note
AR measurements are estimates. For tournaments, record applications, or any purpose requiring an official measurement, verify the result with a physical measuring tool. An ARKit-compatible iPhone running iOS 17 or later is required.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Backup and import are now available for your catches and photos.
• Save catch data and JPEG photos in a ZIP archive
• Add imported catches to your current data or replace catches with the backup
• Improved validation and reliability during import
Your Complete purchase and free-capture count are not changed by backup or import.
The developer, Wataru Ihara, 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
- Seller
- Wataru Ihara
- Size
- 47.7 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
• iPhone 6S
• iPhone 6S Plus
• iPhone SE (1st generation)
• iPhone 7
• iPhone 7 Plus
• iPhone 8
• iPhone 8 Plus
• iPhone X
• iPhone XS
• iPhone XS Max
• iPhone XR
• iPhone 11
• iPhone 11 Pro
• iPhone 11 Pro Max
• iPhone SE (2nd generation)
• iPhone 12 mini
• iPhone 12
• iPhone 12 Pro
• iPhone 12 Pro Max
• iPhone 13 Pro
• iPhone 13 Pro Max
• iPhone 13 mini
• iPhone 13
• iPhone SE (3rd generation)
• iPhone 14
• iPhone 14 Plus
• iPhone 14 Pro
• iPhone 14 Pro Max
• iPhone 15
• iPhone 15 Plus
• iPhone 15 Pro
• iPhone 15 Pro Max
• iPhone 16
• iPhone 16 Plus
• iPhone 16 Pro
• iPhone 16 Pro Max
• iPhone 16e
• iPhone 17 Pro
• iPhone 17 Pro Max
• iPhone 17
• iPhone Air
• iPhone 17e
• iPhone 18 Pro
• iPhone 18 Pro Max
• iPhone Duo
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Complete $10.99
- Copyright
- © 2026 Wataru Ihara