GaugeRemote vs Ductulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GaugeRemote
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Control the WiFi model of Retrotec's DM32 digital pressure gauge wirelessly with the GaugeRemote app on Apple devices! GaugeRemote features the same intuitively designed user interface as the DM32 gauge itself, eliminating a learning curve for using the application. Simply launch the app and select the DM32 to connect to. A fully mirrored interface will allow you to set speed or pressure, change devices and ranges, and receive results.
Ductulator
Instantly calculate HVAC duct sizes based on airflow, friction rate, or velocity. This tool provides accurate duct dimensions in seconds without needing charts, supporting various duct types and units.
- Instant duct sizing
- Friction rate or velocity calculation
- Multiple valid duct dimensions
- IP and SI units support
- Detailed sizing mode
- Rectangular, circular, and flexible ducts
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Size HVAC ducts instantly using airflow, friction or velocity. Get accurate duct dimensions in seconds — no charts required. • Get a range of suitable duct sizes based on friction rate or velocity. • Get multiple valid duct dimensions instantly. • Tap on Friction Rate or Velocity to toggle between calculation methods. • IP and SI units. • Detailed sizing mode to adjust the duct dimensions and air flow rates. • Supports rectangular, circular and flexible ducts. • Automatic friction and velocity updates. Calculations are based on standard air 0.075 lb/ft3 (1.2 kg/m3) in clean galvanized steel or non-metallic flexible ducts. Any feedback is welcome, and will be the basis for future updates.
Screenshots
Verdict
The clearest difference is price: GaugeRemote at Free against Ductulator's $3.99. GaugeRemote also leads on iOS requirement (6.0 vs 18.6). Ductulator's advantage is chart position (#75 vs unranked). On update cadence, 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
GaugeRemote is free to download; Ductulator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GaugeRemote ships an update every 3 months, Ductulator every 2 months. The most recent releases landed on September 22, 2026 and September 26, 2026 respectively.
| Parameter | GaugeRemote | Ductulator |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | — | 4.7 (317 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 317 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Best chart rank | — | #75 — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 6.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | RETROTEC, INC. | Wassim Murr |
In-app purchases
GaugeRemote
No in-app purchases
Ductulator
No in-app purchases
Questions
Is GaugeRemote free?
Is Ductulator free?
Do GaugeRemote or Ductulator have ads?
Which is updated more often, GaugeRemote or Ductulator?
Other comparisons
