# Luna智能广播 vs 知答

The clearest difference is in-app purchases: Luna智能广播 at none against 知答's 4. Luna智能广播 also leads on iOS requirement (12.0 vs 15.6). 知答's advantage is update cadence (weekly vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. 知答 sells 4 one-off in-app purchases. Luna智能广播 asks for nothing beyond the download.

Luna智能广播 ships an update every 7 months, 知答 weekly. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Luna智能广播 | 知答 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Size | 40 MB | 77 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [广东保伦电子股份有限公司](https://appshunter.io/developer/933187149) | [晓生 唐](https://appshunter.io/developer/1680679241) |

## What reviewers say

### Luna智能广播

[App page](https://appshunter.io/ios/app/luna/id1494665736)

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

**In-app purchases:** none


### 知答

[App page](https://appshunter.io/ios/app/ai-agent/id6739323442)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 购买60个知豆 | $0.99 | one-time |
| 购买180个知豆 | $2.99 | one-time |
| 购买300个知豆 | $3.99 | one-time |
| 购买1680个知豆 | $24.99 | one-time |


## Frequently asked questions

### Is Luna智能广播 free?

Luna智能广播 is free to download, with no in-app purchases.

### Is 知答 free?

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

### Do Luna智能广播 or 知答 have ads?

Neither Luna智能广播 nor 知答 shows ads.

### Which is updated more often, Luna智能广播 or 知答?

Luna智能广播 ships an update every 7 months, and 知答 weekly. Most recently, Luna智能广播 was updated on November 4, 2026 and 知答 on November 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.*