# Xylem AR App vs ASHRAE DFDB Lite

The clearest difference is iOS requirement: ASHRAE DFDB Lite at 11.0 against Xylem AR App's 13.0. On price, update cadence, 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.

Xylem AR App ships an update every 2 months, ASHRAE DFDB Lite every 6 weeks. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Xylem AR App | ASHRAE DFDB Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/xylem-ar-app/id1513860507/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 97 MB | 7 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xylem Inc.](https://appshunter.io/developer/582035368) | [ASHRAE, Inc.](https://appshunter.io/developer/375374912) |

## What reviewers say

### Xylem AR App

[App page](https://appshunter.io/ios/app/xylem-ar-app/id1513860507)

Explore and interact with virtual 3D models of core pump offerings. Examine internal components, visualize operation, and learn about features and benefits for commercial building applications. Capture screenshots of your augmented reality experience.

**Highlights:** Place and manipulate virtual pump models, Examine internal components with explode view, Visualize pump operation with animation, Explore features and benefits interactively, Isolate and reposition models, Capture screenshots

**In-app purchases:** none


### ASHRAE DFDB Lite

[App page](https://appshunter.io/ios/app/ashrae-dfdb-lite/id6475053772)

Calculate pressure loss for a selection of ASHRAE duct fittings. Create projects, customize inputs, and generate reports with spreadsheet attachments. Supports both I-P and SI units and works on iPhone and iPad.

**Highlights:** Pressure loss calculations for ASHRAE fittings, Individual project creation, Customizable input parameters, Fitting code search feature, Display and email reports, I-P and SI unit support, iPhone and iPad compatible

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Xylem AR App free?

Xylem AR App is free to download, with no in-app purchases.

### Is ASHRAE DFDB Lite free?

ASHRAE DFDB Lite is free to download, with no in-app purchases.

### Do Xylem AR App or ASHRAE DFDB Lite have ads?

Neither Xylem AR App nor ASHRAE DFDB Lite shows ads.

### Which is updated more often, Xylem AR App or ASHRAE DFDB Lite?

Xylem AR App ships an update every 2 months, and ASHRAE DFDB Lite every 6 weeks. Most recently, Xylem AR App was updated on October 20, 2026 and ASHRAE DFDB Lite on October 12, 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.*