# Ideal Supply VMI vs CircKit

The clearest difference is in-app purchases: Ideal Supply VMI at none against CircKit's 9. Ideal Supply VMI also leads on iOS requirement (15.5 vs 17.0). CircKit's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. CircKit sells 9 in-app purchases, starting at $1.99 per month. Ideal Supply VMI asks for nothing beyond the download.

Ideal Supply VMI ships an update every 3 weeks, CircKit weekly. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Ideal Supply VMI | CircKit |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 78.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 52 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ideal Supply](https://appshunter.io/developer/1392565308) | [The Sparky](https://appshunter.io/developer/1747077864) |

## 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


### CircKit

[App page](https://appshunter.io/ios/app/circkit/id6612010334)

This app provides essential electrical calculations and reference tools for professionals, including motor sizing, voltage drop, and Canadian Electrical Code data. It features an AI assistant for quick answers and productivity tools like unit conversion and integrated notes.

**Highlights:** AI electrical assistant (Sparky), Motor and transformer sizing calculators, Voltage drop and arc flash calculations, Canadian Electrical Code reference library, Unit converter and fraction calculator, Integrated notes and project guidance

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $14.99 | per year |
| 14 Day Trial | Free | one-time |
| $1 Tip | $0.99 | one-time |
| $5 Tip | $4.99 | one-time |
| $10 Tip | $9.99 | one-time |
| $20 Tip | $19.99 | one-time |
| Discounted Lifetime | $22.99 | one-time |
| Lifetime Access | $39.99 | one-time |


## Frequently asked questions

### Is Ideal Supply VMI free?

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

### Is CircKit free?

CircKit is free to download, with in-app purchases available.

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

Neither Ideal Supply VMI nor CircKit shows ads.

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

Ideal Supply VMI ships an update every 3 weeks, and CircKit weekly. Most recently, Ideal Supply VMI was updated on November 2, 2026 and CircKit on November 4, 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.*