# Cited: Plumbing & HVAC Codes — AI Answers with Sources

> Plumbing and HVAC code answers with sources and trade calculators. (iPhone/iPad app by Opterra, Inc..)

- Source: https://appshunter.io/ios/app/cited-plumbing-and-hvac-codes/id6751297250 (this page in markdown: same URL + `.md`)
- Developer: [Opterra, Inc.](https://appshunter.io/developer/6804046055)
- Category: Reference, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 5 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 48 MB
- Languages: American English
- Released: 2025-09-27
- Data updated: 2026-11-05
- Monetization: freemium

## What is Cited?

Code answers you can check.

Cited answers plumbing and mechanical code questions in plain language, and every answer shows the code section it came from. No guessing, no digging through the book on the job.

THE RIGHT CODE FOR YOUR JOB
Pick your state, county, or city and Cited answers for the code your jurisdiction uses.

ANSWERS WITH SOURCES
Each answer cites the section & table, so you can show the inspector, the foreman or the customer exactly where it says so.

TRADE CALCULATORS THAT DRAW THE JOB
Plumbing, mechanical and general trade calculators. Enter your numbers and see the result drawn out, with every value labelled.

BUILT FOR THE FIELD
Made by tradespeople for plumbers, pipefitters, HVAC techs, apprentices and journeymen.

Pro unlocks unlimited code answers and all calculators. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel in your App Store account settings.


Terms of Use: 
https://support.opterra.cloud/app/terms/

## Key features

- Plain language code answers
- Answers with code section sources
- Jurisdiction-specific code selection
- Trade calculators with visual output
- Built for field professionals

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Opterra Pro | $9.99 | per month |
| Opterra Pro | $89.99 | per year |


## Is Cited safe?

Not enough ratings yet to assess Cited.

## Is Cited legit?

Cited: Plumbing & HVAC Codes appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Cited is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Cited

### Does Cited have ads?

Cited does not contain advertisements. The app offers a free version with limited access and a Pro subscription for unlimited features.

### How much does Cited cost?

Cited is free to download and use with basic features. A subscription called Opterra Pro unlocks unlimited code answers and all calculators, with pricing options of $9.99/month or $89.99/year.

### What is the free trial for Cited Pro?

Opterra Pro offers a free trial period of 3 days for the monthly subscription and 7 days for the annual subscription. These trials allow users to test the full features before committing.

### How do I cancel my Cited Pro subscription?

Subscriptions for Cited Pro renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings.

### What devices does Cited support?

Cited is available for iPhone and iPod devices. The app is designed for mobile use, making it convenient for professionals on the go.

### How often is Cited updated?

The latest version of Cited is 1.13.1, last updated on November 2, 2026. This indicates regular updates to ensure code accuracy and app functionality.

### What is the age rating for Cited?

Cited has an age rating of 4+, making it suitable for a wide range of users. This rating suggests the content is generally appropriate for most audiences.

### What makes Cited useful for field professionals?

Cited is built by tradespeople for tradespeople, offering code answers with sources and visual trade calculators. This design aims to eliminate guesswork and digging through books on the job.

## Version history (last 5 releases)

### 1.13.1 — 2026-11-02

- Changed App Name
- Improved UX for Jurisdiction Selection & Onboarding
- Moved Calculator to Dedicated Screen
- New Splashscreen
- Bug Fixes & Performance Improvements

### 1.12.0 — 2026-08-31

A completely redesigned app — new look across every screen.

• Ask with a photo — snap or attach a picture and chat about what's in it
• See the assistant's progress as it works, and which codebook it's using — it asks when your question could match more than one
• All 73 trade calculators in one full-screen workspace, organized by category
• Smoother scrolling, subscription fixes, and plenty of polish

### 1.10 — 2026-03-19

- App name change
- Minor bug improvements

### 1.0.5 — 2025-12-31

- App name change
- UI/UX Changes
- Bug Fixes

### 1.0.4 — 2025-11-03

Bug fixes & UX changes

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-05.*