# Airside: HVAC Tools & PT Chart — Duct Sizing & Load Calculator

> Duct Sizing & Load Calculator (iPhone/iPad app by Ingenio Productions LLC.)

- Source: https://appshunter.io/ios/app/airside-hvac-tools-and-pt-chart/id6773865074 (this page in markdown: same URL + `.md`)
- Developer: [Ingenio Productions LLC](https://appshunter.io/developer/1249919346)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 41 MB
- Languages: American English
- Released: 2026-11-07
- Data updated: 2026-11-09

## What is Airside?

28 HVAC tools that show their work — PT chart, superheat, duct and pipe sizing, ventilation, load, combustion — each one naming its method and source. Works offline.

Airside is a field engineering suite for HVAC technicians, estimators, and mechanical engineers. No account. No ads. Calculations need no connection — every table and equation ships inside the app.

FREE — NO SIGN-UP
• PT Chart — 28 refrigerants, saturation temperature ↔ pressure
• Superheat / Subcool — charge diagnostics with a target superheat estimator
• Charge Weight — line-set volume to pounds of refrigerant
• Psychrometrics — full air state on a psychrometric chart, with an indicative comfort region
• Fan Laws / VFD — CFM ∝ N, SP ∝ N², BHP ∝ N³
• Design Weather — outdoor design conditions for 246 North American cities
• Reference screens — humidity, pressure, dew point, energy, engineering constants

AIRSIDE PRO — EVERY CALCULATOR
Air: Duct Sizing (SMACNA, Darcy-Weisbach + Colebrook-White) · Ventilation single-zone and multi-zone with System Ev (ASHRAE 62.1 method; rates per the 2025 California Mechanical Code) · Air Traverse (pitot grid, velocity-averaged) · Coil Performance (air-side capacity check) · AHU Process with a plotted psych chart · TAB Worksheet (NEBB procedures)
Hydronic: Pipe Sizing (Darcy-Weisbach + Darby 3-K fittings) · Pump Selection with multi-segment TDH · Expansion Tank · Fluid Properties for water and glycol
Electrical: Motor Load from field amps (NEC Art. 430, NEMA MG-1) · Belt / Sheave Drive
Energy: Block Heat Load, a preliminary sizing aid — CLTD opaque surfaces plus a 24-hour CTF simulation · Chiller Performance on CAPFT/EIRFT curves (AHRI 550/590 rating conditions) · Combustion Efficiency (Siegert stack loss) · System Efficiency (EER/COP/kW-ton)

LIVE ESTIMATE — SEPARATE SUBSCRIPTION (INCLUDES EVERY CALCULATOR)
Walk the building once and leave with a document:
• Scan rooms with LiDAR for dimensions, doors, and windows, and tag equipment as you go
• Measure pipe and duct runs in AR — they flow straight into the sizing calculators
• Import a PDF blueprint and scale it; on vector PDFs, pull the equipment schedule off the sheet
• Tag photos with observations, room by room
• Build a takeoff schedule from what you captured
• Export a client-facing preliminary sizing report with a stated confidence band — not a fake-precision number

BUILT TO BE TRUSTED
• Every calculator shows its method and source on screen
• Where a method has limits, the app says so instead of hiding it
• Results cross-validated against CoolProp (NIST-based equations of state), manufacturer refrigerant charts, and NOAA station data

MADE FOR THE FIELD
• Calculators work fully offline — mechanical rooms, crawlspaces, and basements included
• Every calculator result exports to a real vector PDF and out through the iOS share sheet
• Save snapshots to a project and compare before/after readings
• Search the words you use: "friction loss", "gauges", "flow hood", "clamp meter"
• Imperial and SI throughout
• Dark mode, high-contrast themes, and text scaling

WHO IT'S FOR
Service techs charging systems and chasing airflow. Estimators turning a walkthrough into a preliminary scope and budget. TAB contractors. Mechanical engineers who want the standard cited, not implied. Instructors and apprentices.

NOTES
LiDAR room scanning requires a LiDAR-equipped iPhone or iPad Pro. Blueprint import, calculators, and PDF export work on any supported device. Airside Pro is a yearly subscription or one-time purchase; Live Estimate is a separate monthly or yearly subscription. Subscriptions renew until cancelled. Purchases need a connection.

Verify every result before acting on it. Live Estimate output is preliminary: not for permit, procurement, or final design. Standards bodies are named to identify published methods; Airside is not affiliated with or endorsed by them.

Terms of Use: https://getairside.app/terms
Privacy Policy: https://getairside.app/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Airside Professional (Annual) | $24.99 | per year |
| Airside Live Estimate (Monthly) | $29.99 | per month |
| Airside Live Estimate (Annual) | $289.99 | per year |


## Is Airside safe?

Not enough ratings yet to assess Airside.

## Is Airside legit?

Airside: HVAC Tools & PT Chart appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Airside is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-11-07

No release notes.

## More apps by Ingenio Productions LLC

- [Pool Water Calculator](https://appshunter.io/ios/app/pool-water-calculator/id1249919347)
- [AirScope: Pollen & Air Quality](https://appshunter.io/ios/app/airscope-pollen-and-air-quality/id6482578819)
- [MesoRadar: Storm & Snow Radar](https://appshunter.io/ios/app/mesoradar-storm-and-snow-radar/id6755743104)
- [Vault Savings & Retirement](https://appshunter.io/ios/app/vault-savings-and-retirement/id6770571788)
- [Spectre Ghost Hunting](https://appshunter.io/ios/app/spectre-ghost-hunting/id6774707314)

All apps by Ingenio Productions LLC: https://appshunter.io/developer/1249919346

---

*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 2026-11-09.*