ClimateMaster Skyport vs Ductulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClimateMaster Skyport
Remotely monitor and control your home's heating and cooling system from your iPhone, iPad, or iPod Touch. View current weather, forecasts, and equipment runtimes, and receive important alerts for ultimate comfort and peace of mind.
- Remote thermostat monitoring and control
- Current weather and forecast display
- Equipment runtime monitoring
- Thermostat alert notifications
- Home/Away status selection
Read full descriptionHide full description
The ClimateMaster Skyport App allows iPhone, iPad and iPod Touch users to remotely monitor and control their heating and cooling systems. From the couch to across town you have the ability to control your comfort remotely. ClimateMaster Skyport App features include: - Simple, easy to use monitor and control of the thermostat - Current weather and forecast is displayed for each location - Monitor equipment runtimes - Receive thermostat alerts - Easy selection of home or away Compatible with ClimateMaster WiFi thermostats.
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
Read full descriptionHide full description
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
ClimateMaster Skyport and Ductulator both sit at 4.6 stars, but that hides the real split: 100% of ClimateMaster Skyport's written reviews are positive against 50% of Ductulator's. ClimateMaster Skyport also leads on price (Free vs $3.99) and iOS requirement (15.6 vs 18.6). Ductulator's advantage is update cadence (every 2 months vs every 8 months) and ratings volume (362 vs 31). On rating, ads, in-app purchases and monetization model 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
ClimateMaster Skyport is free to download; Ductulator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ductulator holds the better App Store score, 4.7 against 4.6. That said, the two scores are not equally well evidenced: Ductulator has 362 ratings behind it against 31, so its average is the more settled of the two. Written reviews complicate that: 100% of ClimateMaster Skyport's written reviews are positive against 50% of Ductulator's, so the app with the better star average is not the one people write more warmly about.
ClimateMaster Skyport ships an update every 8 months, Ductulator every 2 months. The most recent releases landed on November 3, 2026 and November 11, 2026 respectively.
| Parameter | ClimateMaster Skyport | Ductulator |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.6 (31 ratings) | 4.7 (362 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 31 | 362 — better |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #54 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 65 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Skyport Labs, LLC | Wassim Murr |
Customer experience
ClimateMaster Skyport
Ductulator
Bugs and requests
ClimateMaster Skyport
Not enough reviews yet to summarise bugs or requests.
Ductulator
Reported bugs
4 issues- Decimal point doesn't work on calculator
- New flex option isn't working properly
- Friction rate can't be changed in the latest version
- Skips duct sizes (e.g., 24-26)
Requested features
5 requests- Ability to pick duct size and see CFM
- Include flat oval ducts
- Option to select round or square duct
- Ability to enter duct size and get CFM
- Option for flex duct
In-app purchases
ClimateMaster Skyport
No in-app purchases
Ductulator
No in-app purchases
Questions
Is ClimateMaster Skyport free?
Is Ductulator free?
Which has better reviews, ClimateMaster Skyport or Ductulator?
Do ClimateMaster Skyport or Ductulator have ads?
Which is updated more often, ClimateMaster Skyport or Ductulator?
Other comparisons
