# PVF Reference vs Clifty Group

The clearest difference is iOS requirement: PVF Reference at 8.0 against Clifty Group's 11.0. 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.

## The numbers

| Metric | PVF Reference | Clifty Group |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pvf-reference/id1244206014/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Monetization | Free | — |
| Size | 47 MB | 22 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DistributionNOW](https://appshunter.io/developer/1227921553) | [Clifty Group, LLC](https://appshunter.io/developer/1675169135) |

## What reviewers say

### PVF Reference

[App page](https://appshunter.io/ios/app/pvf-reference/id1244206014)

Access industry standard terminology, specifications, and reference tables for pipe, valves, fittings, and fasteners. Quickly identify materials, understand markings, and find technical data with interactive tables and diagrams.

**Highlights:** Industry terminology glossary, Material identification diagrams, Technical data tables, Formula conversions, Manufacturing process diagrams, Industry standard marking explanations

**Features:** macOS Compatibility

**In-app purchases:** none


### Clifty Group

[App page](https://appshunter.io/ios/app/clifty-group/id6445966591)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PVF Reference free?

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

### Is Clifty Group free?

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

### Do PVF Reference or Clifty Group have ads?

Neither PVF Reference nor Clifty Group shows ads.

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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.*