# TANCHJIM vs Zlen 扫描

The clearest difference is update cadence: TANCHJIM at every 4 weeks against Zlen 扫描's every 5 months. TANCHJIM also leads on iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TANCHJIM ships an update every 4 weeks, Zlen 扫描 every 5 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TANCHJIM | Zlen 扫描 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.4 (11 ratings)](https://appshunter.io/ios/app/tanchjim/id6446278638/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 7.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 123 MB | 45 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 9+ |
| Developer | [Nanning Heavy Hammer Technology Co., Ltd.](https://appshunter.io/developer/1677043717) | [Haifeng Zhao](https://appshunter.io/developer/1894176651) |

## What reviewers say

### TANCHJIM

[App page](https://appshunter.io/ios/app/tanchjim/id6446278638)

Customize your TANCHJIM Bluetooth earphones with signature sound profiles and adjustable settings for a more convenient listening experience. Future updates will include a Parametric Equalizer for advanced audio personalization.

**Highlights:** Bluetooth device tuning, Earphone settings adjustment, Signature sound profiles, Audio personalization, Parametric Equalizer (upcoming)

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

**In-app purchases:** none


### Zlen 扫描

[App page](https://appshunter.io/ios/app/zlen/id6763501853)

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

**In-app purchases:** none


## Frequently asked questions

### Is TANCHJIM free?

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

### Is Zlen 扫描 free?

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

### Do TANCHJIM or Zlen 扫描 have ads?

Neither TANCHJIM nor Zlen 扫描 shows ads.

### Which is updated more often, TANCHJIM or Zlen 扫描?

TANCHJIM ships an update every 4 weeks, and Zlen 扫描 every 5 months. Most recently, TANCHJIM was updated on October 25, 2026 and Zlen 扫描 on October 28, 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.*