# Caleffi Pipe Sizer vs Nextech EDGE User Conference

The clearest difference is review sentiment: Nextech EDGE User Conference at 100% against Caleffi Pipe Sizer's 50%. Nextech EDGE User Conference also leads on update cadence (every 10 days vs every 7 months) and ratings volume (38 vs 1). Caleffi Pipe Sizer's advantage is rating (5.0 vs 4.8) and monetization model (free vs ad-supported). On price, ads and in-app purchases there is nothing between them.

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

Caleffi Pipe Sizer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Nextech EDGE User Conference has 38 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of Caleffi Pipe Sizer's written reviews are positive against 100% of Nextech EDGE User Conference's, so the app with the better star average is not the one people write more warmly about.

Caleffi Pipe Sizer ships an update every 7 months, Nextech EDGE User Conference every 10 days. The most recent releases landed on June 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Caleffi Pipe Sizer | Nextech EDGE User Conference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caleffi-pipe-sizer/id1088928458/reviews)** | [4.8 (38 ratings)](https://appshunter.io/ios/app/nextech-edge-user-conference/id1667966680/reviews) |
| Number of ratings | 1 | **38** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 10 days** |
| Monetization | **Free** | Ad-supported |
| Size | 44 MB | 141 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Caleffi S.p.A](https://appshunter.io/developer/920722440) | [NexTech Systems, Inc.](https://appshunter.io/developer/496924416) |

## What reviewers say

### Caleffi Pipe Sizer

[App page](https://appshunter.io/ios/app/caleffi-pipe-sizer/id1088928458)

This application assists hydraulic and HVAC professionals in accurately sizing water or air pipes. It calculates pressure drops and offers a modern, intuitive interface for precise system design on the go.

**Highlights:** Accurate water/air pipe sizing, Pressure drop calculation, Customizable technical parameter calculations, Extensive material and configuration library, Modern and intuitive interface, Enhanced performance

**Features:** macOS Compatibility

**In-app purchases:** none


### Nextech EDGE User Conference

[App page](https://appshunter.io/ios/app/nextech-edge-user-conference/id1667966680)

This app helps attendees of a national user conference build their personalized schedule, connect with other participants, and discover event sponsors. It serves as a central hub for all conference-related activities and information.

**Highlights:** Build personalized agenda, Network with attendees, Explore sponsors, Access conference information, Event hub

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Caleffi Pipe Sizer free?

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

### Is Nextech EDGE User Conference free?

Nextech EDGE User Conference is free to download, with no in-app purchases.

### Which has better reviews, Caleffi Pipe Sizer or Nextech EDGE User Conference?

Caleffi Pipe Sizer is rated higher. Caleffi Pipe Sizer averages 5.0 out of 5 from 1 ratings, while Nextech EDGE User Conference averages 4.8 from 38 ratings.

### Do Caleffi Pipe Sizer or Nextech EDGE User Conference have ads?

Neither Caleffi Pipe Sizer nor Nextech EDGE User Conference shows ads.

### Which is updated more often, Caleffi Pipe Sizer or Nextech EDGE User Conference?

Caleffi Pipe Sizer ships an update every 7 months, and Nextech EDGE User Conference every 10 days. Most recently, Caleffi Pipe Sizer was updated on June 25, 2026 and Nextech EDGE User Conference on September 17, 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.*