# CMS Tax App vs BauGPT

The clearest difference is ads: BauGPT at none against CMS Tax App's shown. BauGPT also leads on update cadence (every 4 months vs every 9 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

CMS Tax App ships an update every 9 months, BauGPT every 4 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CMS Tax App | BauGPT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 43 MB | 33 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CONNAUGHTON MILLER SMITH INC](https://appshunter.io/developer/1692158537) | [Protonaut GmbH](https://appshunter.io/developer/1041310234) |

## What reviewers say

### CMS Tax App

[App page](https://appshunter.io/ios/app/cms-tax-app/id6450176638)

**Features:** macOS Compatibility

**In-app purchases:** none


### BauGPT

[App page](https://appshunter.io/ios/app/baugpt/id6759096058)

Get instant, expert answers for construction-related questions, from building codes to material suggestions. Upload plans and photos, or use voice input for quick, practical advice tailored to construction projects. Your data is kept private and compliant with GDPR standards.

**Highlights:** Ask construction questions in plain language, Upload plans and photos for analysis, Voice input for hands-free operation, Share images directly from gallery, GDPR compliant data storage in Germany, Dark mode

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

**In-app purchases:** none


## Frequently asked questions

### Is CMS Tax App free?

CMS Tax App is free to download, with no in-app purchases.

### Is BauGPT free?

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

### Do CMS Tax App or BauGPT have ads?

CMS Tax App shows ads; BauGPT does not.

### Which is updated more often, CMS Tax App or BauGPT?

CMS Tax App ships an update every 9 months, and BauGPT every 4 months. Most recently, CMS Tax App was updated on October 30, 2026 and BauGPT on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*