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Grains: Archery Calculator

Grains: Archery Calculator

by 37 South, LLC

6 ratings
3 reviews
🔧 Utilities
⚽ Sports

Archived App (Last seen on 12 May 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • June 27, 2021
  • September 6, 2023

Features

Developer

37 South, LLC
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About

This app helps archers calculate crucial arrow metrics like total weight, FOC, speed, and energy. It simplifies complex calculations for building accurate hunting arrows and provides insights into game suitability.

✓Calculate total arrow weight
✓Determine FOC percentage
✓Estimate arrow speed
✓Calculate arrow energy
✓Advice for ideal arrow setups
✓Game suitability recommendations
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What's New in Grains

1.1

September 6, 2023

Bug fixes and improvements.

User reviews

Most RecentHighest RatedLowest Rated

Pass

Literally nothing on the app works , you cannot put any info in pass on this
Jg1994!!!!!!!Jg1994!!!!!!!

Not user friendly

I tap and tap and tap and it does not allow me to input data until messing with where and how I tap on each input section. Further does not allow you to save or keep data in the fields and auto resets clearing information inputed. Should also transfer data from tab to tab instead you have to put duplicate information in. Not worth the money dont mess with this app doe not function as intended not user friendly.
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APPost1APPost1

Exactly what I was looking for

I’ve been looking for a simple calculator for my arrows. This does that and more, and it’s so simple to use.
Edit?????Edit?????

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FAQ

What is Grains used for?

Grains is used to calculate key archery metrics such as total arrow weight, FOC (front of center), arrow speed, and energy. It helps archers build and optimize their arrows for accuracy and hunting effectiveness.

How much does Grains cost?

Grains is a paid application, available for $1.99. This one-time purchase grants you access to all its features for calculating arrow performance.

What devices does Grains support?

Grains is available for iPhone and iPod devices. It is designed for iOS users who engage in archery.

Is Grains suitable for beginners?

Yes, Grains simplifies complex calculations like FOC and provides advice for ideal setups, making it beneficial for both beginner and experienced archers looking to improve their arrow builds.

How often is Grains updated?

The latest version of Grains was released on September 6, 2023. Updates ensure the app remains functional and accurate for its users.

What is the age rating for Grains?

Grains has an age rating of 4+, indicating it is suitable for users of all ages. The app's content is appropriate for a wide audience.

Does Grains have ads?

No, Grains is ad-free. As a paid application, it provides an uninterrupted user experience without any advertisements.

What is the user sentiment for Grains?

Grains has a positive user sentiment, reflected in its rating of 4.3 stars from 6 ratings. Users appreciate its convenience in calculating important archery metrics.