# D vs 真探·酒店助手

The clearest difference is in-app purchases: D at none against 真探·酒店助手's 2. D also leads on iOS requirement (9.0 vs 17). 真探·酒店助手's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 真探·酒店助手 sells 2 in-app purchases, starting at $3.99 per 7 days. D asks for nothing beyond the download.

D ships an update every 3 weeks, 真探·酒店助手 weekly. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | D | 真探·酒店助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/id6770867700/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 191 MB | 11 MB |
| Requires iOS | **9.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou D-Haus Technology Co.,Ltd.](https://appshunter.io/developer/540292612) | [好喜 孙](https://appshunter.io/developer/1739822417) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-controls-plus/id978227893)

**Features:** macOS Compatibility

**In-app purchases:** none


### 真探·酒店助手

[App page](https://appshunter.io/ios/app/id6770867700)

This app helps travelers detect hidden devices, analyze room noise, and scan for network anomalies in unfamiliar hotel rooms. It also allows users to map and review hotels, creating a personal travel accommodation record for future reference.

**Highlights:** Hotel mapping and review, Travel record keeping, Red dot scanning, Decibel detection, Night vision mode, Port scanning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP | $3.99 | per 7 days |
| forever vip | $39.99 | one-time |


## Frequently asked questions

### Is D free?

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

### Is 真探·酒店助手 free?

真探·酒店助手 is free to download, with in-app purchases available.

### Do D or 真探·酒店助手 have ads?

Neither D nor 真探·酒店助手 shows ads.

### Which is updated more often, D or 真探·酒店助手?

D ships an update every 3 weeks, and 真探·酒店助手 weekly. Most recently, D was updated on September 29, 2026 and 真探·酒店助手 on October 6, 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.*