# DeltaV CHARM DEWD vs I&C Tech Tools

The clearest difference is rating: DeltaV CHARM DEWD at 4.1 against I&C Tech Tools's 1.0. DeltaV CHARM DEWD also leads on in-app purchases (none vs 2) and ratings volume (14 vs 1). I&C Tech Tools's advantage is update cadence (every 4 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. I&C Tech Tools sells 2 in-app purchases, starting at $4.99 per month. DeltaV CHARM DEWD asks for nothing beyond the download.

DeltaV CHARM DEWD holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: DeltaV CHARM DEWD has 14 ratings behind it against 1, so its average is the more settled of the two.

DeltaV CHARM DEWD ships an update every 4 months, I&C Tech Tools every 4 days. The most recent releases landed on June 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | DeltaV CHARM DEWD | I&C Tech Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (14 ratings)](https://appshunter.io/ios/app/deltav-charm-dewd/id688891028/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/i-and-c-tech-tools/id6756155332/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 64 MB | 43 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Emerson Process Management](https://appshunter.io/developer/561985742) | [LONNIE DALE RAWLS](https://appshunter.io/developer/1858762647) |

## 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


### I&C Tech Tools

[App page](https://appshunter.io/ios/app/i-and-c-tech-tools/id6756155332)

This app offers essential calculation tools for instrumentation and control technicians and engineers. It provides free access to basic tools, with advanced calculators available through a one-time in-app purchase or subscription.

**Highlights:** Basic instrumentation calculations, Free access to selected tools, Advanced calculators via in-app purchase, Practical reference tools, Ongoing improvements and updates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| I&C Tech Tools - Monthly Access | $4.99 | per month |
| I&C Tech Tools - Yearly | $49.99 | per year |


## Frequently asked questions

### Is DeltaV CHARM DEWD free?

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

### Is I&C Tech Tools free?

I&C Tech Tools is free to download, with in-app purchases available.

### Which has better reviews, DeltaV CHARM DEWD or I&C Tech Tools?

DeltaV CHARM DEWD is rated higher. DeltaV CHARM DEWD averages 4.1 out of 5 from 14 ratings, while I&C Tech Tools averages 1.0 from 1 ratings.

### Do DeltaV CHARM DEWD or I&C Tech Tools have ads?

Neither DeltaV CHARM DEWD nor I&C Tech Tools shows ads.

### Which is updated more often, DeltaV CHARM DEWD or I&C Tech Tools?

DeltaV CHARM DEWD ships an update every 4 months, and I&C Tech Tools every 4 days. Most recently, DeltaV CHARM DEWD was updated on June 1, 2026 and I&C Tech Tools on September 26, 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.*