# 233621 vs 挚听

233621 and 挚听 are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

On the App Store both sit at effectively the same score — 5.0 for 233621 against 5.0 for 挚听. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

233621 ships an update every 5 weeks, 挚听 every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | 233621 | 挚听 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/233621/id1548404060/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id1620100600/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 140 MB | 54 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Grandsun Electronic Co.,Ltd](https://appshunter.io/developer/1043379862) | [Shenzhen Eartech Co., Ltd.](https://appshunter.io/developer/1586501650) |

## What reviewers say

### 233621

[App page](https://appshunter.io/ios/app/233621/id1548404060)

This app enhances the functionality of compatible acoustic earphones by connecting via Bluetooth. It allows for quick headset function settings and supports over-the-air firmware upgrades to improve the listening experience and unlock product potential.

**Highlights:** Bluetooth connectivity, Headset function settings, OTA firmware upgrades, Enhanced listening experience, Unlock product potential

**In-app purchases:** none


### 挚听

[App page](https://appshunter.io/ios/app/id1620100600)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 233621 free?

233621 is free to download, with no in-app purchases.

### Is 挚听 free?

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

### Which has better reviews, 233621 or 挚听?

233621 and 挚听 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 233621 or 挚听 have ads?

Neither 233621 nor 挚听 shows ads.

### Which is updated more often, 233621 or 挚听?

233621 ships an update every 5 weeks, and 挚听 every 3 weeks. Most recently, 233621 was updated on November 3, 2026 and 挚听 on November 3, 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.*