# Ideal Supply VMI vs E

The clearest difference is price: Ideal Supply VMI at Free against E's $13.99. Ideal Supply VMI also leads on iOS requirement (15.5 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Ideal Supply VMI is free to download; E costs $13.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ideal Supply VMI ships an update every 3 weeks, E every 5 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Ideal Supply VMI | E |
| --- | --- | --- |
| Price | **Free** | $13.99 |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/e-calc-master-2021/id1538269385/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | — | Paid |
| Size | 6 MB | 37 MB |
| Requires iOS | **15.5** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ideal Supply](https://appshunter.io/developer/1392565308) | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) |

## What reviewers say

### Ideal Supply VMI

[App page](https://appshunter.io/ios/app/ideal-supply-vmi/id1392565309)

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

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-calc-master-2021/id1538269385)

This app provides comprehensive electrical calculations based on the Canadian Electric Code. It assists electricians and engineers with tasks like wire and conduit sizing, fusing, and load calculations, offering detailed results and saving them for sharing or printing.

**Highlights:** Canadian Electric Code calculations, Wire and conduit sizing, Fusing and overload calculations, Motor and transformer load calculations, Custom panel legends, Voltage drop calculations, Box fill calculations

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

**In-app purchases:** none


## Frequently asked questions

### Is Ideal Supply VMI free?

Ideal Supply VMI is free to download, with no in-app purchases.

### Is E free?

E costs $13.99, with no in-app purchases.

### Do Ideal Supply VMI or E have ads?

Neither Ideal Supply VMI nor E shows ads.

### Which is updated more often, Ideal Supply VMI or E?

Ideal Supply VMI ships an update every 3 weeks, and E every 5 weeks. Most recently, Ideal Supply VMI was updated on November 6, 2026 and E on November 3, 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.*