Test & balance, in your pocket

Every airflow, hydronic, and balance calculation a TAB tech needs.

FlowIQ replaces your ductulator, pump curve charts, and valve calculators with one app — duct traverses, ACH, hydronic balancing, and 1,240+ pipe sizing configurations, all in the field.

Get it onGoogle PlayUnder review
Coming soon on theApp StoreComing soon

Solo tech? Grab the app above. Buying seats for your whole crew? See corporate & team pricing.

Duct Traverse — Rectangular
18 PTS SET
1,842 CFM
DUCT SIZE
24×12
AVG VEL
922 fpm
DESIGN
+2.3%
BALANCE VALVE DATA FORTACOVICTAULICWATTSJCIARMSTRONGBELL & GOSSETT

One toolkit, every test & balance job

Airflow, hydronic, and pipe sizing tools built around how TAB techs actually work in the field.

Duct traverse & airflow

Round, square/rectangular, or flat oval — enter duct dimensions and liner, and FlowIQ lays out your traverse points and converts velocity readings to CFM automatically.

Air changes (ACH)

Enter room dimensions and measured airflow to calculate actual ACH — if it falls short, FlowIQ tells you the airflow needed to hit design requirements.

Static pressure
IN DEVELOPMENT

Meter-based static pressure profiling across filters, coils, and dampers — coming to FlowIQ soon.

Temp & humidity

Pair over BLE with a Testo temp/humidity probe to capture psychrometric readings, then save and share them straight from the app.

Hydronic pump balancing

Input pump curve points and submittal data to generate a digital curve, then plot actual open/closed valve pressures for a real operating-point curve and a recommended speed and discharge pressure.

Balance valve calculators

Generic manual valves by size, Cv, and pressure drop, plus manufacturer-specific curves for Taco, Victaulic, Watts, Flow Design, JCI, MMA, Nibco, Nexus, Griswold, Armstrong, and Bell & Gossett.

Plus a full calculator library

Fan and pump laws, air-side and water-side BTUs, electric heat kW, and an ultrasonic pipe selection book for the Fuji water meter — over 1,240 pipe configurations from carbon steel to Aquatherm.

Fan / pump laws
Air-side BTUs
Water-side BTUs
Electric heat kW
Ultrasonic pipe sizing

Built around Tools, Recents, and Favorites

The home screen puts your whole toolkit one tap away, and remembers what you use most.

1
Pick a tool

Browse the full tool library from the main screen, or jump straight to a Favorite you've pinned for this job.

2
Enter readings

Type in dimensions, curve points, or field pressures — or stream them live over BLE from a Testo probe.

3
Save & share

Every result lands in Recents, ready to save to the cloud or share by email for your report.

Corporate & team pricing

No setup fees. Cancel anytime. Buying for yourself instead? Get the app directly from Google Play or the App Store above.

Starter
$10/tech/mo
or $100/tech/yr — 2 months free
Duct Traverse, ACH & Calculators
Get started
Duct Traverse Tools
ACH Tools
Calculators
MOST POPULAR
Professional
$20/tech/mo
or $200/tech/yr — 2 months free
Full toolkit, unlimited jobs
Get started
Everything in Starter
Hydronic pump balancing
All valve brand calculators
Ultrasonic pipe sizing book
Enterprise
Talk to us
Firm-wide licensing
Contact sales
Everything in Pro
Team report sharing
Priority support
Admin console

Frequently asked questions

Which duct shapes does the traverse tool support?

Round, square/rectangular, and flat oval. Enter your dimensions and liner, and FlowIQ lays out traverse point spacing for you.

Which balance valve brands are covered?

Taco, Victaulic, Watts, Flow Design, JCI, MMA, Nibco, Nexus, Griswold, Armstrong, and Bell & Gossett, plus a generic Cv-based calculator for any manual valve.

Does FlowIQ connect to my Testo probe?

Yes — the Temp & Humidity tool pairs over Bluetooth with Testo probes to pull live psychrometric readings straight into the app.

Are Velgrid and the Static Pressure meter available yet?

Both are in active development. Everything else — duct traverse, ACH, hydronic balancing, valve calculators, and the calculator library — is available today.

One app. Every reading. Zero guesswork.

Talk to our team or start a free trial — the full tool library is ready on day one.

FlowIQ Instruments
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