# Acme HVAC Pro+ vs Opterra

The clearest difference is in-app purchases: Acme HVAC Pro+ at none against Opterra's 2. Opterra's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (14.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Acme HVAC Pro+ against 5.0 for Opterra. Both are backed by a comparable volume of ratings — 13 and 5 respectively.

Acme HVAC Pro+ ships an update every 2 months, Opterra every 2 weeks. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Acme HVAC Pro+ | Opterra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (13 ratings)](https://appshunter.io/ios/app/acme-hvac-pro-plus/id1596967034/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/opterra/id6751297250/reviews) |
| Number of ratings | **13** | 5 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Ad-supported** | Freemium |
| Size | 166 MB | 48 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Watsco, Inc.](https://appshunter.io/developer/510378878) | [Opterra, Inc.](https://appshunter.io/developer/6804046055) |

## What reviewers say

### Acme HVAC Pro+

[App page](https://appshunter.io/ios/app/acme-hvac-pro-plus/id1596967034)

Access product information, pricing, and order status. Find locations, search equipment, and submit warranty claims. Connect with technical support and manage inventory.

**Highlights:** View pricing and order status, Find locations and get directions, Search equipment and parts, Verify warranty registrations, Access spec sheets and diagrams, Live technical support chat, Inventory replenishment tool

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Acme HVAC Pro+ free?

Acme HVAC Pro+ is free to download, with no in-app purchases.

### Is Opterra free?

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

### Which has better reviews, Acme HVAC Pro+ or Opterra?

Acme HVAC Pro+ and Opterra are both rated 5.0 out of 5 on the App Store, from 13 and 5 ratings respectively.

### Do Acme HVAC Pro+ or Opterra have ads?

Neither Acme HVAC Pro+ nor Opterra shows ads.

### Which is updated more often, Acme HVAC Pro+ or Opterra?

Acme HVAC Pro+ ships an update every 2 months, and Opterra every 2 weeks. Most recently, Acme HVAC Pro+ was updated on October 24, 2026 and Opterra on October 11, 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.*