# 英文小精灵 vs ElectroCalc Pro

The clearest difference is ads: 英文小精灵 at none against ElectroCalc Pro's shown. 英文小精灵 also leads on update cadence (every 10 days vs every 3 months). ElectroCalc Pro's advantage is iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 英文小精灵 sells 5 in-app purchases, starting at $0.99 per month and ElectroCalc Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

英文小精灵 ships an update every 10 days, ElectroCalc Pro every 3 months. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 英文小精灵 | ElectroCalc Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 3 months |
| Size | 17 MB | 27 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [俊杰 卢](https://appshunter.io/developer/1781580043) | [DONGSOO LEE](https://appshunter.io/developer/1868670088) |

## What reviewers say

### 英文小精灵

[App page](https://appshunter.io/ios/app/id6739682740)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月会员 | $0.99 | per month |
| 普通包月 | $0.99 | one-time |
| 一次性包季 | $2.99 | one-time |
| 永久会员 | $7.99 | one-time |
| 一次性包年 | $9.99 | one-time |


### ElectroCalc Pro

[App page](https://appshunter.io/ios/app/electrocalc-pro/id6758211193)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is 英文小精灵 free?

英文小精灵 is free to download, with in-app purchases available.

### Is ElectroCalc Pro free?

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

### Do 英文小精灵 or ElectroCalc Pro have ads?

ElectroCalc Pro shows ads; 英文小精灵 does not.

### Which is updated more often, 英文小精灵 or ElectroCalc Pro?

英文小精灵 ships an update every 10 days, and ElectroCalc Pro every 3 months. Most recently, 英文小精灵 was updated on October 5, 2026 and ElectroCalc Pro on October 24, 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.*