# 掌中诀 (AI分析) vs BUTTONS LAB

The clearest difference is in-app purchases: BUTTONS LAB at none against 掌中诀 (AI分析)'s 1. BUTTONS LAB also leads on update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 掌中诀 (AI分析) sells 1 one-off in-app purchase. BUTTONS LAB asks for nothing beyond the download.

掌中诀 (AI分析) ships an update every 3 months, BUTTONS LAB every 3 weeks. Both last shipped on October 10, 2026.

## The numbers

| Metric | 掌中诀 (AI分析) | BUTTONS LAB |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 56 MB | 93 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHEUNG PUI MAN](https://appshunter.io/developer/291179028) | [Beijing Techaoweijia Electronic Technology Co., Ltd.](https://appshunter.io/developer/1773335377) |

## What reviewers say

### 掌中诀 (AI分析)

[App page](https://appshunter.io/ios/app/ai/id504270532)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI大师分析 | $19.99 | one-time |


### BUTTONS LAB

[App page](https://appshunter.io/ios/app/buttons-lab/id6744053612)

Manage your BUTTONS earphones with this intuitive platform. Enjoy instant pairing, real-time battery monitoring, and seamless firmware updates. Access smart assistant services and stay informed with global news for a tailored audio experience.

**Highlights:** Instant pairing, Real-time battery monitoring, Firmware updates, Multilingual support, Smart assistant access, Global service news

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 掌中诀 (AI分析) free?

掌中诀 (AI分析) is free to download, with in-app purchases available.

### Is BUTTONS LAB free?

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

### Do 掌中诀 (AI分析) or BUTTONS LAB have ads?

Neither 掌中诀 (AI分析) nor BUTTONS LAB shows ads.

### Which is updated more often, 掌中诀 (AI分析) or BUTTONS LAB?

掌中诀 (AI分析) ships an update every 3 months, and BUTTONS LAB every 3 weeks. Most recently, 掌中诀 (AI分析) was updated on October 10, 2026 and BUTTONS LAB on October 10, 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.*