Arrows

Contains adsIn-app purchases
453 reviews
Content rating
Everyone
50K+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

A spine calculator for compound and recurve target archers. It calculates spine and provides advice and information on a wide variety of arrrow-shafts. Its database is updated regular so you always have the latest info on the latest available arrow shafts from many different manufacturers. The database contains lots of useful information about a.o. spine, weight, diameter of different manufacturers and shafts.
Arrow database and spine selection tool for compound and recurve archers
Updated on
Sep 23, 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
    App activity and App info and performance
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

433 reviews
Rudy Hassall
February 1, 2025
The arrow spine calculator has potential but is not beneficial as it provides underspined recommendations, which is dangerous. It lacks key numbers like arrowhead weight, component weights (insert, collar, screw-in weights), fletching count, length, weight, arrow wrap weight, and nock weight. It doesn't calculate total arrow weight but asks for it to calculate energy. A 3-5 day free trial would help. Used on Google Pixel 6 Pro, Android 15. Not recommended.
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Derek Dalton
September 8, 2026
V3.1.4 The recent update has restored some functionality that was buggy, but now sadly the database is blank and the app just calculates arrow spine.
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Zahidee Taat
August 11, 2026
its not working after updates. please check. update : still not working after uninstall and install it. pls check sir.
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Marcel van Apeldoorn
August 15, 2026
Hi, very sorry about that. We've had some stability issues in our major version 3 release. 3.0.3 is at the time of writing the latest release that should be online (or come online) in the next few hours, that should solve these problems.

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