# E vs Select Conductor Wire PRO

The clearest difference is iOS requirement: E at 13.0 against Select Conductor Wire PRO's 15.0. 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.

E ships an update every 18 months, Select Conductor Wire PRO every 19 months. The most recent releases landed on September 12, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | E | Select Conductor Wire PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e-wire-calc/id885429495/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 19 months |
| Monetization | Free | Free |
| Size | 26 MB | 10 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ELEKTRISOLA](https://appshunter.io/developer/885429498) | [Caio Pinheiro](https://appshunter.io/developer/494446833) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-wire-calc/id885429495)

This tool helps determine technical characteristics of enamelled copper wire based on industry standards. It offers functions for diameter conversion, resistance calculations, and breakdown voltage.

**Highlights:** Diameter conversion (mm, inch, AWG), Resistance calculation, Metal wire diameter calculation, Resistance tolerance, Enamelled copper quantity and length, Breakdown voltage, Winding tension calculation, Overall diameter tolerance

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

**In-app purchases:** none


### Select Conductor Wire PRO

[App page](https://appshunter.io/ios/app/select-conductor-wire-pro/id1178386753)

This app simplifies electrical conductor dimensioning for professionals and students. It offers precise calculations based on international standards, with an intuitive interface for quick and accurate results. Future updates will expand its capabilities.

**Highlights:** Electrical conductor dimensioning, B1 and B2 installation methods, Compliance with IEC 60364 standards, Intuitive and easy-to-use interface, Educational and professional tool, Planned expansion of installation methods

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is Select Conductor Wire PRO free?

Select Conductor Wire PRO is free to download, with no in-app purchases.

### Do E or Select Conductor Wire PRO have ads?

Neither E nor Select Conductor Wire PRO shows ads.

### Which is updated more often, E or Select Conductor Wire PRO?

E ships an update every 18 months, and Select Conductor Wire PRO every 19 months. Most recently, E was updated on September 12, 2026 and Select Conductor Wire PRO on September 8, 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.*