# Circuit Laboratory HD vs Electronics Toolkit calc

The clearest difference is update cadence: Electronics Toolkit calc at every 4 months against Circuit Laboratory HD's every 27 months. Electronics Toolkit calc also leads on price ($4.99 vs $6.99) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Circuit Laboratory HD costs $6.99 and Electronics Toolkit calc $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Circuit Laboratory HD ships an update every 27 months, Electronics Toolkit calc every 4 months. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Circuit Laboratory HD | Electronics Toolkit calc |
| --- | --- | --- |
| Price | $6.99 | **$4.99** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 180 MB | 25 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fabrizio Boco](https://appshunter.io/developer/466239616) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Circuit Laboratory HD

[App page](https://appshunter.io/ios/app/circuit-laboratory-hd/id1056997109)

This app allows users to design and analyze electronic circuits graphically. It supports various analysis types including DC, AC, multifrequency AC, and transient, with a wide range of components and measuring instruments.

**Highlights:** Graphical circuit design, DC analysis, AC analysis, Multifrequency AC analysis, Transient analysis, Component library, Measuring instruments

**Features:** macOS Compatibility

**In-app purchases:** none


### Electronics Toolkit calc

[App page](https://appshunter.io/ios/app/electronics-toolkit-calc/id6473828034)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circuit Laboratory HD free?

Circuit Laboratory HD costs $6.99, with no in-app purchases.

### Is Electronics Toolkit calc free?

Electronics Toolkit calc costs $4.99, with no in-app purchases.

### Do Circuit Laboratory HD or Electronics Toolkit calc have ads?

Neither Circuit Laboratory HD nor Electronics Toolkit calc shows ads.

### Which is updated more often, Circuit Laboratory HD or Electronics Toolkit calc?

Circuit Laboratory HD ships an update every 27 months, and Electronics Toolkit calc every 4 months. Most recently, Circuit Laboratory HD was updated on September 30, 2026 and Electronics Toolkit calc on October 1, 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.*