# 许大师 vs 格物 Whence

The clearest difference is in-app purchases: 格物 Whence at none against 许大师's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 许大师 sells 1 one-off in-app purchase. 格物 Whence asks for nothing beyond the download.

## The numbers

| Metric | 许大师 | 格物 Whence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id6792216120/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Changsha Zhihui Yuchuang Technology Co., Ltd.](https://appshunter.io/developer/1515092418) | [立超 徐](https://appshunter.io/developer/1879391068) |

## What reviewers say

### 许大师

[App page](https://appshunter.io/ios/app/id6792216120)

This utility app offers in-depth hardware analysis and real-time device status monitoring for iPhones. It allows users to import diagnostic files for local analysis, view key metrics like battery and network speed, and access a suite of practical tools for network, storage, and screen testing.

**Highlights:** Import system diagnostic files for local hardware analysis, Real-time monitoring of battery, memory, and network speed, Dynamic Island and widget support for key metrics, Network Ping, storage performance, and screen testing tools, Privacy-focused with local data processing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 许大师 Pro 永久版 | $0.99 | one-time |


### 格物 Whence

[App page](https://appshunter.io/ios/app/whence/id6799561288)

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

**In-app purchases:** none


## Frequently asked questions

### Is 许大师 free?

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

### Is 格物 Whence free?

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

### Do 许大师 or 格物 Whence have ads?

Neither 许大师 nor 格物 Whence shows ads.

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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.*