# BT vs 泽其 TWS

The clearest difference is device support: BT at 3 against 泽其 TWS's —. BT also leads on iOS requirement (11.0 vs 13.0). On price, update cadence and in-app purchases there is nothing between them.

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

BT ships an update every 4 months, 泽其 TWS every 7 months. The most recent releases landed on September 23, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | BT | 泽其 TWS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 4 months** | Every 7 months |
| Size | 8 MB | 60 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [建红 邝](https://appshunter.io/developer/1611263038) | [泽其科技](https://appshunter.io/developer/1695687751) |

## What reviewers say

### BT

[App page](https://appshunter.io/ios/app/bt-amplifier/id6444695148)

**Features:** macOS Compatibility

**In-app purchases:** none


### 泽其 TWS

[App page](https://appshunter.io/ios/app/tws/id6465745595)

**In-app purchases:** none


## Frequently asked questions

### Is BT free?

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

### Is 泽其 TWS free?

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

### Which is updated more often, BT or 泽其 TWS?

BT ships an update every 4 months, and 泽其 TWS every 7 months. Most recently, BT was updated on September 23, 2026 and 泽其 TWS on September 30, 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.*