# 智能问答 vs 专业测量仪

The clearest difference is price: 智能问答 at Free against 专业测量仪's $0.99. 专业测量仪's advantage is in-app purchases (none vs 3) and update cadence (every 5 days vs every 4 months). On ads, device support and iOS requirement there is nothing between them.

智能问答 is free to download; 专业测量仪 costs $0.99 up front. 智能问答 sells 3 in-app purchases, starting at $3.99 per month. 专业测量仪 asks for nothing beyond the download.

智能问答 ships an update every 4 months, 专业测量仪 every 5 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 智能问答 | 专业测量仪 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 11 MB | 123 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [志鹏 吴](https://appshunter.io/developer/1638689858) | [小飞 刘](https://appshunter.io/developer/1679472128) |

## What reviewers say

### 智能问答

[App page](https://appshunter.io/ios/app/id6448619183)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| month | $3.99 | per month |
| year | $12.99 | per year |
| permanent | $29.99 | one-time |


### 专业测量仪

[App page](https://appshunter.io/ios/app/id6449776548)

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

**In-app purchases:** none


## Frequently asked questions

### Is 智能问答 free?

智能问答 is free to download, with in-app purchases available.

### Is 专业测量仪 free?

专业测量仪 costs $0.99, with no in-app purchases.

### Do 智能问答 or 专业测量仪 have ads?

Neither 智能问答 nor 专业测量仪 shows ads.

### Which is updated more often, 智能问答 or 专业测量仪?

智能问答 ships an update every 4 months, and 专业测量仪 every 5 days. Most recently, 智能问答 was updated on October 2, 2026 and 专业测量仪 on October 8, 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.*