# 结构设计工具箱 vs Basic Calculations

The clearest difference is ads: Basic Calculations at none against 结构设计工具箱's shown. Basic Calculations also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (12.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 结构设计工具箱 sells 3 in-app purchases, starting at $3.99 per month and Basic Calculations sells 5 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

结构设计工具箱 ships an update every 4 months, Basic Calculations every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 结构设计工具箱 | Basic Calculations |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 14 MB | 26 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [疆 边](https://appshunter.io/developer/1124320934) | [涛 吴](https://appshunter.io/developer/1499197098) |

## What reviewers say

### 结构设计工具箱

[App page](https://appshunter.io/ios/app/id1170765643)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一个月 | $3.99 | per month |
| 一年 | $7.99 | per year |
| 完整版 | $12.99 | one-time |


### Basic Calculations

[App page](https://appshunter.io/ios/app/basic-calculations/id1499197099)

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scan all functions: 1 month | $0.99 | per month |
| Scan all functions: 6 months | $1.99 | per 6 months |
| Scan all functions: 1 year | $2.99 | per year |
| Full calc | Free | one-time |
| Scan full version | $4.99 | one-time |


## Frequently asked questions

### Is 结构设计工具箱 free?

结构设计工具箱 is free to download, with in-app purchases available.

### Is Basic Calculations free?

Basic Calculations is free to download, with in-app purchases available.

### Do 结构设计工具箱 or Basic Calculations have ads?

结构设计工具箱 shows ads; Basic Calculations does not.

### Which is updated more often, 结构设计工具箱 or Basic Calculations?

结构设计工具箱 ships an update every 4 months, and Basic Calculations every 3 weeks. Most recently, 结构设计工具箱 was updated on October 29, 2026 and Basic Calculations on October 25, 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.*