# Opterra vs The NTCA

The clearest difference is in-app purchases: The NTCA at none against Opterra's 2. Opterra's advantage is ads (none vs shown) and ratings volume (5 vs 1). On price, rating and device support there is nothing between them.

Both are free to download. Opterra sells 2 in-app purchases, starting at $9.99 per month. The NTCA asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Opterra against 5.0 for The NTCA. That said, the two scores are not equally well evidenced: Opterra has 5 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Opterra | The NTCA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/opterra/id6751297250/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/the-ntca/id6752025913/reviews) |
| Number of ratings | **5** | 1 |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | — |
| Monetization | Freemium | **Ad-supported** |
| Size | 48 MB | 50 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Opterra, Inc.](https://appshunter.io/developer/6804046055) | [National Tile Contractors Association](https://appshunter.io/developer/1837930146) |

## What reviewers say

### Opterra

[App page](https://appshunter.io/ios/app/opterra/id6751297250)

Get instant, verified answers to building code questions with an AI assistant trained on trade-specific regulations. Access cited code sections and tables for confident verification. Save references for offline use and listen to responses hands-free.

**Highlights:** AI-powered code question answering, State and local code filtering, Cited code sections and tables, Offline code section saving, Text-to-speech responses

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Opterra Pro | $9.99 | per month |
| Opterra Pro | $89.99 | per year |


### The NTCA

[App page](https://appshunter.io/ios/app/the-ntca/id6752025913)

This app provides tile installation professionals with essential tools, training, and community connections. Access technical resources, industry news, and exclusive member benefits. It's designed to help contractors, installers, and partners enhance their skills and grow their businesses.

**Highlights:** Technical resources access, Industry news and updates, Event and workshop information, Exclusive member benefits, Peer-to-peer networking, Training and skill development

**In-app purchases:** none


## Frequently asked questions

### Is Opterra free?

Opterra is free to download, with in-app purchases available.

### Is The NTCA free?

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

### Which has better reviews, Opterra or The NTCA?

Opterra and The NTCA are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do Opterra or The NTCA have ads?

The NTCA shows ads; Opterra does not.

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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.*