# 智能问答 vs HDSAFE

The clearest difference is in-app purchases: HDSAFE at none against 智能问答's 3. HDSAFE also leads on update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 智能问答 sells 3 in-app purchases, starting at $3.99 per month. HDSAFE asks for nothing beyond the download.

智能问答 ships an update every 4 months, HDSAFE every 3 weeks. The most recent releases landed on December 15, 2025 and September 7, 2026 respectively.

## The numbers

| Metric | 智能问答 | HDSAFE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 11 MB | 20 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [志鹏 吴](https://appshunter.io/developer/1638689858) | [华的](https://appshunter.io/developer/1686877849) |

## 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 |


### HDSAFE

[App page](https://appshunter.io/ios/app/hdsafe/id6448909747)

**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 HDSAFE free?

HDSAFE is free to download, with no in-app purchases.

### Do 智能问答 or HDSAFE have ads?

Neither 智能问答 nor HDSAFE shows ads.

### Which is updated more often, 智能问答 or HDSAFE?

智能问答 ships an update every 4 months, and HDSAFE every 3 weeks. Most recently, 智能问答 was updated on December 15, 2025 and HDSAFE on September 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*