Calculate gas flow through an Orifice Meter using AGA 8 compressibility and AGA 3 flow calculations. Supports both metric and imperial units, remembers input values, and generates shareable PDF reports.
GasFlowMeter-Flow Calibration by Rajam Raghu


245+ iOS apps curated and reviewed
Every iPhone needs a few good gas flow apps. We benchmark 245+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | Yes | No | May 2026 | ||
| 2 | Free | — | No | No | May 2026 | ||
| 3 | Free | — | No | Yes | May 2026 | ||
| 4 | Free | — | No | No | Aug 2026 | ||
| 5 | Free | 5.0★ (7) | No | Yes | Sep 2026 | ||
| 6 | $3.99 | 5.0★ (1) | No | No | May 2026 | ||
| 7 | Free | 4.7★ (448K) | Yes | No | Oct 2026 | ||
| 8 | Free | — | No | Yes | May 2026 |








Calculate gas flow through an Orifice Meter using AGA 8 compressibility and AGA 3 flow calculations. Supports both metric and imperial units, remembers input values, and generates shareable PDF reports.



