# Nastec NOW vs Xylem X

The clearest difference is update cadence: Nastec NOW at every 4 weeks against Xylem X's every 4 months. Xylem X's advantage is iOS requirement (15.1 vs 17). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Nastec NOW ships an update every 4 weeks, Xylem X every 4 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Nastec NOW | Xylem X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/xylem-x/id6449676022/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 89 MB | 59 MB |
| Requires iOS | 17 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nastec s.r.l.](https://appshunter.io/developer/1223976022) | [Xylem Inc.](https://appshunter.io/developer/582035368) |

## What reviewers say

### Nastec NOW

[App page](https://appshunter.io/ios/app/nastec-now/id1223976023)

Monitor and control Nastec devices via Bluetooth or Wi-Fi. View operating parameters, energy consumption statistics, and alarm history. Generate reports, manage programs, and access updated documentation.

**Highlights:** Monitor device parameters, View energy statistics, Access alarm history, Generate reports, Manage device programs, Remote control via Wi-Fi/GSM, Access updated manuals

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

**In-app purchases:** none


### Xylem X

[App page](https://appshunter.io/ios/app/xylem-x/id6449676022)

This app enables remote control and monitoring of Hydrovar X products. Users can add devices, perform commissioning, gather operational data, and receive alerts. It also facilitates sharing configuration reports and updating device firmware.

**Highlights:** Add and group connected units, Remote monitoring and control, Gather alarms and errors, Create configuration reports, Perform firmware updates

**In-app purchases:** none


## Frequently asked questions

### Is Nastec NOW free?

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

### Is Xylem X free?

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

### Do Nastec NOW or Xylem X have ads?

Neither Nastec NOW nor Xylem X shows ads.

### Which is updated more often, Nastec NOW or Xylem X?

Nastec NOW ships an update every 4 weeks, and Xylem X every 4 months. Most recently, Nastec NOW was updated on October 7, 2026 and Xylem X on October 4, 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.*