# ArrowLab by BowTune vs Foc Calculator

The clearest difference is ads: ArrowLab by BowTune at none against Foc Calculator's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. ArrowLab by BowTune sells 2 in-app purchases, starting at $14.99 per month and Foc Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 11, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | ArrowLab by BowTune | Foc Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/arrowlab-by-bowtune/id6761871674/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 days | Every 6 days |
| Monetization | Subscription | — |
| Size | 89 MB | 31 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Walls Tech LLC](https://appshunter.io/developer/1891882311) | [Tonino Calvagna](https://appshunter.io/developer/6819088741) |

## What reviewers say

### ArrowLab by BowTune

[App page](https://appshunter.io/ios/app/arrowlab-by-bowtune/id6761871674)

Design, visualize, and optimize custom arrows using real components from various manufacturers. Compare parts, find the right spine, and keep all your arrow builds organized in one place. Ideal for hunters and target archers.

**Highlights:** Design custom arrows with real components, Visualize builds with live preview, Get personalized spine recommendations, Organize all arrow builds, Browse catalog of shafts, vanes, and more, Generate printable build sheets

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BowTune Pro Monthly | $14.99 | per month |
| BowTune Pro Annually | $119.99 | per year |


### Foc Calculator

[App page](https://appshunter.io/ios/app/foc-calculator/id6819088739)

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is ArrowLab by BowTune free?

ArrowLab by BowTune is free to download, with in-app purchases available.

### Is Foc Calculator free?

Foc Calculator is free to download, with in-app purchases available.

### Do ArrowLab by BowTune or Foc Calculator have ads?

Foc Calculator shows ads; ArrowLab by BowTune does not.

### Which is updated more often, ArrowLab by BowTune or Foc Calculator?

ArrowLab by BowTune ships an update every 6 days, and Foc Calculator every 6 days. Most recently, ArrowLab by BowTune was updated on October 11, 2026 and Foc Calculator on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*