# OrificeQ Pro — AGA-3 / AGA-8 orifice metering

> AGA-3 / AGA-8 orifice metering (iPhone/iPad app by Enermatic Colombia S.A.S.)

- Source: https://appshunter.io/ios/app/orificeq-pro/id6763612452 (this page in markdown: same URL + `.md`)
- Developer: [Enermatic Colombia S.A.S](https://appshunter.io/developer/1895397902)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 55 MB
- Languages: American English
- Released: 2026-06-11
- Data updated: 2026-07-02
- User reviews in markdown: https://appshunter.io/ios/app/orificeq-pro/id6763612452/reviews.md

## What is OrificeQ Pro?

OrificeQ Pro is a professional engineering tool for natural-gas flow measurement through orifice plates. It implements the industry standards — AGA Report No. 3 (2013), AGA Report No. 8 (2017) and ISO 5167-2 — so your results are accurate, traceable and audit-ready.

CALCULATE WHAT YOU NEED
• Flow rate (Q), differential pressure (ΔP) or orifice diameter (d) — solve for any of the three.
• Plate sizing: find the orifice diameter for a target flow.
• Z-factor (compressibility) via AGA-8 DETAIL and GROSS — simple gravity or full gas chromatography (GPA 2261).

ENGINEERING DEPTH
• Reader–Harris/Gallagher discharge coefficient, expansion factor, Reynolds number, beta ratio and more — all shown.
• Built-in conformity check: every result is validated against AGA-3 valid ranges, so you know instantly if it is in spec.
• Live unit converter (pressure, temperature, flow, length).

PROFESSIONAL REPORTS
• Generate a complete AGA-3 verification report as a PDF — ready for clients and audits.
• Export to Excel (.xlsx) for further analysis.
• Add your company logo and a professional signature to your reports.
• Calculation history, synced to your account.

ONE-TIME PURCHASE
OrificeQ Pro Premium unlocks Excel export, custom branding, the full report suite and unlimited history — a single payment, no subscription, and it works offline.

BUILT FOR PROFESSIONALS
Designed for measurement engineers, field technicians, metering specialists and consultants in the oil & gas industry.

Available in English, Spanish, German, French, Italian and Portuguese.

Powered by Enermatic Colombia S.A.S.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| OrificeQ Pro Premium | $79.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-06-11

No release notes.

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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 2026-07-02.*