# 计算器 vs LTE工程师端

The clearest difference is in-app purchases: LTE工程师端 at none against 计算器's 2. LTE工程师端 also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.6). 计算器's advantage is update cadence (every 2 months vs every 5 months). On price and device support there is nothing between them.

Both are free to download. 计算器 sells 2 one-off in-app purchases. LTE工程师端 asks for nothing beyond the download.

计算器 ships an update every 2 months, LTE工程师端 every 5 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 计算器 | LTE工程师端 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (829 ratings)](https://appshunter.io/ios/app/id1265739545/reviews)** | — |
| Number of ratings | **829** | — |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 52 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [清龙 李](https://appshunter.io/developer/1226266031) | [LTE CONCRETE SOLUTIONS INC](https://appshunter.io/developer/1745654337) |

## What reviewers say

### 计算器

[App page](https://appshunter.io/ios/app/id1265739545)

This comprehensive calculator app offers a wide range of tools, including basic and scientific calculations, currency conversion, loan and tax calculators, and unit conversions. It simplifies complex calculations and conversions with an intuitive interface and voice input support.

**Highlights:** Basic and scientific calculator with voice input, Real-time currency conversion for over 160 countries, Loan calculator for commercial, provident fund, and combined loans, Tax calculator for salary, year-end bonuses, and labor remuneration, Date and unit conversion tools, Number system conversion (binary, octal, decimal, hexadecimal)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 赞助去广告 | $3.99 | one-time |
| 赞助 | $14.99 | one-time |

**What reviewers like**

- 🚀 Efficient and fast
- 💡 Useful features
- 👍 Good user experience

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🔍 Difficult to find ad close buttons
- 🔋 High ad frequency

**Reported bugs**

- Inaccurate real-time exchange rates
- Calculation errors for large numbers
- Sudden disappearance of split mode

**Requested features**

- Add option to disable ads for paid users
- Improve historical calculation record feature
- Add support for traditional Chinese language


### LTE工程师端

[App page](https://appshunter.io/ios/app/lte/id6502505489)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 计算器 free?

计算器 is free to download, with in-app purchases available.

### Is LTE工程师端 free?

LTE工程师端 is free to download, with no in-app purchases.

### Do 计算器 or LTE工程师端 have ads?

计算器 shows ads; LTE工程师端 does not.

### Which is updated more often, 计算器 or LTE工程师端?

计算器 ships an update every 2 months, and LTE工程师端 every 5 months. Most recently, 计算器 was updated on October 26, 2026 and LTE工程师端 on October 16, 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.*