# BDL vs EPSS调试工具

The clearest difference is update cadence: BDL at every 2 weeks against EPSS调试工具's every 5 months. BDL also leads on iOS requirement (13.0 vs 15.6). 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.

BDL ships an update every 2 weeks, EPSS调试工具 every 5 months. Both last shipped on November 8, 2026.

## The numbers

| Metric | BDL | EPSS调试工具 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Size | 51 MB | 55 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Suzhou Boundless Medical Technology Co.,Ltd](https://appshunter.io/developer/1728812703) | [怡达快速电梯有限公司](https://appshunter.io/developer/1731770394) |

## What reviewers say

### BDL

[App page](https://appshunter.io/ios/app/bdl-sh/id6477274035)

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

**In-app purchases:** none


### EPSS调试工具

[App page](https://appshunter.io/ios/app/epss/id6730112773)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BDL free?

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

### Is EPSS调试工具 free?

EPSS调试工具 is free to download, with no in-app purchases.

### Do BDL or EPSS调试工具 have ads?

Neither BDL nor EPSS调试工具 shows ads.

### Which is updated more often, BDL or EPSS调试工具?

BDL ships an update every 2 weeks, and EPSS调试工具 every 5 months. Most recently, BDL was updated on November 8, 2026 and EPSS调试工具 on November 8, 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.*