# Foc Calculator — Archery Arrow Balance

> Archery Arrow Balance (iPhone/iPad app by Tonino Calvagna.)

- Source: https://appshunter.io/ios/app/foc-calculator/id6819088739 (this page in markdown: same URL + `.md`)
- Developer: [Tonino Calvagna](https://appshunter.io/developer/6819088741)
- Category: Sports, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 31 MB
- Languages: American English
- Released: 2026-10-06
- Data updated: 2026-10-29

## What is Foc Calculator?

Calculate the FOC (Front of Center) of your archery arrows with FOC Calculator.

Enter the total arrow length and the distance from the arrow's base to its center of gravity. The app calculates the FOC percentage and compares the result with the reference range for the selected arrow type.

FEATURES

• Calculate the FOC percentage of your arrows.
• Consult reference ranges for aluminum, carbon, and aluminum-carbon arrows.
• Include the arrow point and its weight in your calculations.
• Review your calculation history.
• Export your history to PDF.
• Consult the practical FOC guide.

Available in Italian and English.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Rimuovi Pubblicità | $3.99 | one-time |


## Is Foc Calculator safe?

Not enough ratings yet to assess Foc Calculator.

## Is Foc Calculator legit?

Foc Calculator appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Foc Calculator is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.1.0 — 2026-10-27

What's New in This Version:
• Added "Remove Ads" option with a one-time lifetime purchase.
• Added in-app review and rating feature.
• Minor performance improvements and bug fixes.

### 1.0.6 — 2026-10-14

App name standardized to Foc Calculator, with general improvements.

### 1.0.5 — 2026-10-12

Added a practical guide. The keyboard now closes after calculation. Improved field labels and removed unit labels from results, history, and PDF exports.

### 1.0.4 — 2026-10-06

No release notes.

## Apps similar to Foc Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ArrowLab by BowTune](https://appshunter.io/ios/app/arrowlab-by-bowtune/id6761871674) | 5.0 (3) | Free | Sports |
| [ArrowMetrics](https://appshunter.io/ios/app/arrowmetrics/id6738835543) | 5.0 (7) | Free | Sports |
| [Archery Sheet](https://appshunter.io/ios/app/archery-sheet/id1421254779) | 4.6 (11) | Free | Sports |
| [Archery Note: AI Score Coach](https://appshunter.io/ios/app/archery-note-ai-score-coach/id6541759439) | — | Free | Sports |
| [My Archery](https://appshunter.io/ios/app/my-archery/id868597347) | 4.5 (39) | Free | Sports |
| [3D SKill Board](https://appshunter.io/ios/app/3d-skill-board/id995831555) | 4.6 (17) | Free | Sports |

## More apps by Tonino Calvagna

- [Archery Training](https://appshunter.io/ios/app/archery-training/id6820636953)
- [Archery Performance 360](https://appshunter.io/ios/app/archery-performance-360/id6821143574)
- [Archery Precision](https://appshunter.io/ios/app/archery-precision/id6824307610)

All apps by Tonino Calvagna: https://appshunter.io/developer/6819088741

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*