# icspec vs Electronic Circuit Calculator

The clearest difference is in-app purchases: icspec at none against Electronic Circuit Calculator's 1. icspec also leads on ads (none vs shown) and update cadence (every 9 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Electronic Circuit Calculator sells 1 one-off in-app purchase. icspec asks for nothing beyond the download.

icspec ships an update every 9 days, Electronic Circuit Calculator every 2 months. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | icspec | Electronic Circuit Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (5 ratings)](https://appshunter.io/ios/app/electronic-circuit-calculator/id1583972990/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | — | Free |
| Size | 86 MB | 37 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Lian Tang Technology Co., Ltd.](https://appshunter.io/developer/1504184046) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### icspec

[App page](https://appshunter.io/ios/app/icspec/id1537568425)

**Features:** macOS Compatibility

**In-app purchases:** none


### Electronic Circuit Calculator

[App page](https://appshunter.io/ios/app/electronic-circuit-calculator/id1583972990)

This app provides a comprehensive suite of calculators and design tools for electronic engineering. It assists with circuit design, filter analysis, and component calculations for resistors, capacitors, and inductors. Ideal for both professionals and students, it simplifies complex electronic projects.

**Highlights:** Comprehensive calculator collection, Filter design with graph plotting, Resistor, transistor, capacitor design tools, Amplifier and inductor design, Circuit analysis and design, Offline functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to the Pro version | $2.99 | one-time |


## Frequently asked questions

### Is icspec free?

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

### Is Electronic Circuit Calculator free?

Electronic Circuit Calculator is free to download, with in-app purchases available.

### Do icspec or Electronic Circuit Calculator have ads?

Electronic Circuit Calculator shows ads; icspec does not.

### Which is updated more often, icspec or Electronic Circuit Calculator?

icspec ships an update every 9 days, and Electronic Circuit Calculator every 2 months. Most recently, icspec was updated on September 29, 2026 and Electronic Circuit Calculator on October 13, 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.*