# Caleffi View vs FAN Builder

The clearest difference is update cadence: Caleffi View at every 2 weeks against FAN Builder's every 9 months. FAN Builder's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Caleffi View ships an update every 2 weeks, FAN Builder every 9 months. The most recent releases landed on September 16, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Caleffi View | FAN Builder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 9 months |
| Size | 32 MB | 51 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Caleffi S.p.A](https://appshunter.io/developer/920722440) | [Fantini Cosmi](https://appshunter.io/developer/533095604) |

## What reviewers say

### Caleffi View

[App page](https://appshunter.io/ios/app/caleffi-view/id6466146479)

**Features:** macOS Compatibility

**In-app purchases:** none


### FAN Builder

[App page](https://appshunter.io/ios/app/fan-builder/id6737511009)

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

**In-app purchases:** none


## Frequently asked questions

### Is Caleffi View free?

Caleffi View is free to download, with no in-app purchases.

### Is FAN Builder free?

FAN Builder is free to download, with no in-app purchases.

### Do Caleffi View or FAN Builder have ads?

Neither Caleffi View nor FAN Builder shows ads.

### Which is updated more often, Caleffi View or FAN Builder?

Caleffi View ships an update every 2 weeks, and FAN Builder every 9 months. Most recently, Caleffi View was updated on September 16, 2026 and FAN Builder on August 27, 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.*