GaugeRemote vs CoolCalc Scan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GaugeRemote
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GaugeRemote is the remote control for the Retrotec DM-32 digital pressure and flow gauge, used for blower door and duct leakage testing. It shows the gauge's own screens, live, on your iPhone or iPad, and lets you work the gauge from across the building: • Live pressure, flow and fan readings, exactly as the gauge shows them • Set fan speed or a target pressure, nudge it up or down, and stop the fan • Choose the fan model, range, display mode, time averaging and baseline • Settings pages, @Pressure and the gauge's Diagnostics page (battery, network, link and firmware details) • The gauge's own language: English, German, French or Spanish • A link-health view that tells you plainly when the connection is weak and what to do How it connects GaugeRemote talks to the gauge over your local Wi-Fi network, or over the gauge's own Wi-Fi access point (its network name is DM32- followed by the gauge's serial number). It finds DM-32 gauges on the network by itself and remembers the ones you used. It needs a Retrotec DM-32 gauge with firmware 3.0; firmware 3.0 Builds 26 to 28 do not work over Wi-Fi, so update the gauge to the 3.0 release (free, with Retrotec's DM-32 Firmware Update page). It does not work with other gauges, including the DM32X. Try it without a gauge The connection screen's Simulator option runs a built-in simulated DM-32, so you can explore every screen first. Privacy GaugeRemote collects no personal data. It has no accounts, no analytics and no ads, and it talks only to your gauge on the local network. The few settings it keeps (the gauges you connected to and display preferences) stay on your device. Support: support@retrotec.com
CoolCalc Scan
Capture precise 3D room scans using your device's LiDAR sensor. Organize projects, integrate with a web platform for advanced visualization, and export models in industry-standard formats. Ideal for professionals needing accurate spatial data.
- Precise LiDAR scanning
- Detailed 3D model capture
- Project organization
- CoolCalc platform integration
- Industry-standard export formats
- Multi-room scanning
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Free Scanning — Paid Web Features This iOS app is a companion to CoolCalc. Scanning is free. To use your scan results for ACCA Manual J, Manual S, or Manual D calculations, you’ll need a separate paid subscription or single-project purchase in app.coolcalc.com, our web app. KEY FEATURES • Precise LiDAR Scanning Capture detailed 3D models of rooms with accurate measurements. Document walls, ceilings, windows, doors, and room geometry with professional-grade precision. • Project Organization Create projects for different properties or jobs. Scan multiple rooms and keep everything organized in one place. • CoolCalc Platform Integration Connect your scans with the CoolCalc web platform. Upload your models for advanced processing and visualization with interactive 3D viewers. • Professional Export Export your 3D models in industry-standard formats. Share scans with clients, colleagues, or use them in other professional tools. • Multi-Room Scanning Document entire properties efficiently. Scan room by room and combine them into complete building models. IDEAL FOR Perfect for HVAC professionals, contractors, architects, interior designers, and anyone who needs accurate spatial measurements for their work. REQUIREMENTS • iPhone or iPad with LiDAR sensor (iPhone 12 Pro and later, iPad Pro 2020 and later) • iOS 17.5 or later • Account required for platform integration features
Screenshots
Verdict
The clearest difference is update cadence: CoolCalc Scan at monthly against GaugeRemote's every 6 months. GaugeRemote's advantage is iOS requirement (15.0 vs 17.5). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
GaugeRemote ships an update every 6 months, CoolCalc Scan monthly. The most recent releases landed on November 11, 2026 and November 4, 2026 respectively.
| Parameter | GaugeRemote | CoolCalc Scan |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.6 (7 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 19 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Retrotec, Inc. | Cool Calc Inc. |
In-app purchases
GaugeRemote
No in-app purchases
CoolCalc Scan
No in-app purchases
Questions
Is GaugeRemote free?
Is CoolCalc Scan free?
Do GaugeRemote or CoolCalc Scan have ads?
Which is updated more often, GaugeRemote or CoolCalc Scan?
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