# Strumenti VVF vs QKF

The clearest difference is ads: QKF at none against Strumenti VVF's shown. QKF also leads on update cadence (every 4 days vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Strumenti VVF ships an update every 5 months, QKF every 4 days. The most recent releases landed on June 11, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Strumenti VVF | QKF |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 39.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 52 MB | 34 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tiziano Caccavo](https://appshunter.io/developer/990418445) | [Quick Services SRL](https://appshunter.io/developer/1638313487) |

## What reviewers say

### Strumenti VVF

[App page](https://appshunter.io/ios/app/strumenti-vvf/id1237400801)

This app helps firefighters manage their work life. It includes a calendar for shifts, overtime, and leave, plus resources like a hazardous substances list and knot-tying tutorials. It also provides contact information for fire departments and regional offices.

**Highlights:** Shift calendar with notes and voice memos, Contact list for fire departments, Hazardous substances database, Knot-tying tutorials, List of ogives

**In-app purchases:** none


### QKF

[App page](https://appshunter.io/ios/app/qkf/id1638313335)

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

**In-app purchases:** none


## Frequently asked questions

### Is Strumenti VVF free?

Strumenti VVF is free to download, with no in-app purchases.

### Is QKF free?

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

### Do Strumenti VVF or QKF have ads?

Strumenti VVF shows ads; QKF does not.

### Which is updated more often, Strumenti VVF or QKF?

Strumenti VVF ships an update every 5 months, and QKF every 4 days. Most recently, Strumenti VVF was updated on June 11, 2026 and QKF on September 20, 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.*