Ductulator vs CxPlanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
CxPlanner
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A user account is required for using the software. Please contact your local administrator to get your login details. It is not possible to create accounts within the software. Manage your quality processes with CxPlanner's commissioning and construction tools. Keep track of all punch lists, test paradigms, planning, 3D models and much more on your construction projects. Ensure communication and tracking of all activities for the Owner, Design Team, Contractor, O&M staff and Commissioning team. Comply with the requirements in ASHRAE Guideline 0 and ASHRAE Standard 202. CxPlanner is provided by www.CxPlanner.com
Screenshots
Verdict
The clearest difference is price: CxPlanner at Free against Ductulator's $3.99. CxPlanner also leads on iOS requirement (13.0 vs 18.6). Ductulator's advantage is update cadence (every 2 months vs every 28 months) and chart position (#25 vs unranked). On 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
CxPlanner is free to download; Ductulator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ductulator ships an update every 2 months, CxPlanner every 28 months. The most recent releases landed on October 26, 2026 and October 10, 2026 respectively.
| Parameter | Ductulator | CxPlanner |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.7 (353 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 353 — better | — |
| Update frequency | Every 2 months — better | Every 28 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #25 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Wassim Murr | Commissioning ApS |
Bugs and 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
CxPlanner
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ductulator
No in-app purchases
CxPlanner
No in-app purchases
