# 技成培训 vs Electronics Tools & Calculator

The clearest difference is in-app purchases: Electronics Tools & Calculator at none against 技成培训's 4. 技成培训's advantage is ads (none vs shown) and update cadence (fortnightly vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. 技成培训 sells 4 one-off in-app purchases. Electronics Tools & Calculator asks for nothing beyond the download.

技成培训 ships an update fortnightly, Electronics Tools & Calculator every 6 weeks. The most recent releases landed on October 5, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 技成培训 | Electronics Tools & Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (16 ratings)](https://appshunter.io/ios/app/electronics-tools-and-calculator/id1581885136/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 16.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | — | Free |
| Size | 272 MB | 63 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen JiCheng Technology Co.,LTD.](https://appshunter.io/developer/1132617097) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### 技成培训

[App page](https://appshunter.io/ios/app/id1132617098)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 证书 | $59.99 | one-time |
| 系列会员 | $179.99 | one-time |
| 黄金会员 | $349.99 | one-time |
| 一年白金会员 | $449.99 | one-time |


### Electronics Tools & Calculator

[App page](https://appshunter.io/ios/app/electronics-tools-and-calculator/id1581885136)

This app serves as a pocket-sized electronics lab, offering a comprehensive reference for components and circuits. It simplifies complex calculations for filters, inductors, and various circuit configurations, aiding both engineers and hobbyists in their design processes.

**Highlights:** Electronic component reference, Electronic circuit reference, Filter design calculators, Inductor winding calculators, Transformer winding calculators, Resistor and capacitor calculations, Ohm's law and power calculations

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

**In-app purchases:** none


## Frequently asked questions

### Is 技成培训 free?

技成培训 is free to download, with in-app purchases available.

### Is Electronics Tools & Calculator free?

Electronics Tools & Calculator is free to download, with no in-app purchases.

### Do 技成培训 or Electronics Tools & Calculator have ads?

Electronics Tools & Calculator shows ads; 技成培训 does not.

### Which is updated more often, 技成培训 or Electronics Tools & Calculator?

技成培训 ships an update fortnightly, and Electronics Tools & Calculator every 6 weeks. Most recently, 技成培训 was updated on October 5, 2026 and Electronics Tools & Calculator on October 22, 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.*