# UPW vs Smart Rain SmartApp®

The clearest difference is review sentiment: Smart Rain SmartApp® at 89% against UPW's 0%. Smart Rain SmartApp® also leads on rating (4.1 vs 3.0) and ratings volume (24 vs 2). 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.

Smart Rain SmartApp® holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Smart Rain SmartApp® has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of UPW's written reviews are positive against 89% of Smart Rain SmartApp®'s.

UPW ships an update every 6 weeks, Smart Rain SmartApp® every 5 weeks. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | UPW | Smart Rain SmartApp® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/upw/id1020516066/reviews) | **[4.1 (24 ratings)](https://appshunter.io/ios/app/smart-rain-smartapp/id1456094386/reviews)** |
| Number of ratings | 2 | **24** |
| Positive reviews | 0.0% of reviews | **88.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 24 MB | 40 MB |
| Requires iOS | **15.0** | 16.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [UPW Ltd](https://appshunter.io/developer/1471932761) | [Smartrain](https://appshunter.io/developer/1456094385) |

## What reviewers say

### UPW

[App page](https://appshunter.io/ios/app/upw/id1020516066)

This app provides a digital platform for a luxury yarn company, offering efficient ordering, digital color cards, and detailed environmental information. It allows users to explore a vast collection of yarns and colors, share selections, and stay updated on sustainable practices.

**Highlights:** Intelligent order placement, Digital color cards, Environmental information, 200+ yarn varieties, 3000+ color options, One-click sharing, Sustainability updates

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Smart Rain SmartApp®

[App page](https://appshunter.io/ios/app/smart-rain-smartapp/id1456094386)

Manage your advanced watering system with intelligent controllers and sensor technology. Monitor water usage in real-time, view interactive maps of irrigation zones, and receive custom alerts for leaks and system activity. Get detailed reports on savings and system performance.

**Highlights:** Real-time water usage monitoring, Interactive irrigation zone maps, Customizable leak and system alerts, Detailed performance and savings reports, Daily rainfall forecasts, System dashboard with insights

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

**In-app purchases:** none


## Frequently asked questions

### Is UPW free?

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

### Is Smart Rain SmartApp® free?

Smart Rain SmartApp® is free to download, with no in-app purchases.

### Which has better reviews, UPW or Smart Rain SmartApp®?

Smart Rain SmartApp® is rated higher. UPW averages 3.0 out of 5 from 2 ratings, while Smart Rain SmartApp® averages 4.1 from 24 ratings.

### Do UPW or Smart Rain SmartApp® have ads?

Neither UPW nor Smart Rain SmartApp® shows ads.

### Which is updated more often, UPW or Smart Rain SmartApp®?

UPW ships an update every 6 weeks, and Smart Rain SmartApp® every 5 weeks. Most recently, UPW was updated on November 1, 2026 and Smart Rain SmartApp® on November 11, 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.*