# cnlab UX Test vs Building Defects Tracker

The clearest difference is device support: cnlab UX Test at 3 against Building Defects Tracker's 1. cnlab UX Test also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 19, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | cnlab UX Test | Building Defects Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 39 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Cnlab Software AG](https://appshunter.io/developer/1748999072) | [Albert Frick](https://appshunter.io/developer/6802014257) |

## What reviewers say

### cnlab UX Test

[App page](https://appshunter.io/ios/app/cnlab-ux-test/id326450707)

This utility app measures and analyzes your internet connection's data rates and response times. It helps verify the performance of your ISP and is optimized for various environments, whether you're on a mobile network or at home via WLAN.

**Highlights:** Measures data rates, Analyzes response time, Verifies ISP connection, Provides home network info, Optimized for various environments

**In-app purchases:** none


### Building Defects Tracker

[App page](https://appshunter.io/ios/app/building-defects-tracker/id6802430409)

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

**In-app purchases:** none


## Frequently asked questions

### Is cnlab UX Test free?

cnlab UX Test is free to download, with no in-app purchases.

### Is Building Defects Tracker free?

Building Defects Tracker is free to download, with no in-app purchases.

### Do cnlab UX Test or Building Defects Tracker have ads?

Neither cnlab UX Test nor Building Defects Tracker shows ads.

### Which is updated more often, cnlab UX Test or Building Defects Tracker?

cnlab UX Test ships an update every 2 months, and Building Defects Tracker every 2 months. Most recently, cnlab UX Test was updated on October 19, 2026 and Building Defects Tracker on October 29, 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.*