# Electronic Circuit Calculator vs TTsolar云管

The clearest difference is rating: TTsolar云管 at 5.0 against Electronic Circuit Calculator's 4.0. TTsolar云管 also leads on in-app purchases (none vs 1) and ads (none vs shown). Electronic Circuit Calculator's advantage is update cadence (every 2 months vs every 7 months) and ratings volume (5 vs 1). On price, monetization model and device support there is nothing between them.

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

TTsolar云管 holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Electronic Circuit Calculator has 5 ratings behind it against 1, so its average is the more settled of the two.

Electronic Circuit Calculator ships an update every 2 months, TTsolar云管 every 7 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Electronic Circuit Calculator | TTsolar云管 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/electronic-circuit-calculator/id1583972990/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ttsolar/id6755515262/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 37 MB | 67 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Anas Abubakar](https://appshunter.io/developer/1581534101) | [建孟 罗](https://appshunter.io/developer/1846487648) |

## What reviewers say

### 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 | $3.99 | one-time |


### TTsolar云管

[App page](https://appshunter.io/ios/app/ttsolar/id6755515262)

A cloud-based platform for real-time monitoring, management, and analysis of organizational devices. It enables efficient operations and intelligent decision-making through remote control, asset management, and detailed reporting. Authorized users can access and manage connected assets from anywhere.

**Highlights:** Real-time device status monitoring, Remote device control and alerts, Digital asset management, Role-based access control, Fault notification and maintenance tracking, Mobile dashboard with analytics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electronic Circuit Calculator free?

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

### Is TTsolar云管 free?

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

### Which has better reviews, Electronic Circuit Calculator or TTsolar云管?

TTsolar云管 is rated higher. Electronic Circuit Calculator averages 4.0 out of 5 from 5 ratings, while TTsolar云管 averages 5.0 from 1 ratings.

### Do Electronic Circuit Calculator or TTsolar云管 have ads?

Electronic Circuit Calculator shows ads; TTsolar云管 does not.

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

Electronic Circuit Calculator ships an update every 2 months, and TTsolar云管 every 7 months. Most recently, Electronic Circuit Calculator was updated on November 6, 2026 and TTsolar云管 on October 30, 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.*