# DeltaV CHARM DEWD vs Stonel Wireless Link

The clearest difference is rating: Stonel Wireless Link at 4.5 against DeltaV CHARM DEWD's 3.9. Stonel Wireless Link also leads on iOS requirement (13.0 vs 16.0). DeltaV CHARM DEWD's advantage is ratings volume (15 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.

Stonel Wireless Link holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: DeltaV CHARM DEWD has 15 ratings behind it against 2, so its average is the more settled of the two.

DeltaV CHARM DEWD ships an update every 4 months, Stonel Wireless Link every 6 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DeltaV CHARM DEWD | Stonel Wireless Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (15 ratings)](https://appshunter.io/ios/app/deltav-charm-dewd/id688891028/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/stonel-wireless-link/id995355080/reviews)** |
| Number of ratings | **15** | 2 |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 64 MB | 2 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Emerson Process Management](https://appshunter.io/developer/561985742) | [Valmet Flow Control Inc.](https://appshunter.io/developer/995355079) |

## What reviewers say

### DeltaV CHARM DEWD

[App page](https://appshunter.io/ios/app/deltav-charm-dewd/id688891028)

Diagnose and wire DeltaV CHARMs using your mobile device's camera. Scan CHARM LEDs to understand blink patterns or scan labels for wiring diagrams. Quickly access information, save favorites, add notes, and share with colleagues.

**Highlights:** Scan CHARM LED blink patterns, Scan CHARM labels for text recognition, Instantly understand blink pattern meanings, Swiftly find associated wiring diagrams, Browse and search for results, Store results as Favorites, Create or edit Notes, Share information with colleagues

**Features:** macOS Compatibility

**In-app purchases:** none


### Stonel Wireless Link

[App page](https://appshunter.io/ios/app/stonel-wireless-link/id995355080)

This app allows remote monitoring and control of automated valves via Bluetooth. Users can locate valves, set switch positions, manage network addresses, and log maintenance information. It also provides access to installation manuals and diagnostic data.

**Highlights:** Remote valve location, Monitor/set switch positions, Monitor/set network address, Operate solenoid valves, Identify model/serial number, Log maintenance information, Monitor diagnostics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DeltaV CHARM DEWD free?

DeltaV CHARM DEWD is free to download, with no in-app purchases.

### Is Stonel Wireless Link free?

Stonel Wireless Link is free to download, with no in-app purchases.

### Which has better reviews, DeltaV CHARM DEWD or Stonel Wireless Link?

Stonel Wireless Link is rated higher. DeltaV CHARM DEWD averages 3.9 out of 5 from 15 ratings, while Stonel Wireless Link averages 4.5 from 2 ratings.

### Do DeltaV CHARM DEWD or Stonel Wireless Link have ads?

Neither DeltaV CHARM DEWD nor Stonel Wireless Link shows ads.

### Which is updated more often, DeltaV CHARM DEWD or Stonel Wireless Link?

DeltaV CHARM DEWD ships an update every 4 months, and Stonel Wireless Link every 6 months. Most recently, DeltaV CHARM DEWD was updated on October 23, 2026 and Stonel Wireless Link on October 24, 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.*