AI Ductulator vs Ruud
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AI Ductulator
This application serves as a duct sizing calculator for HVAC professionals and enthusiasts. It provides quick and accurate calculations for duct dimensions based on various parameters.
- Duct sizing calculations
- HVAC parameter input
- Accurate dimension results
- User-friendly interface
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Duct sizing Calculator.
Ruud
This app streamlines HVAC installation, service, and support for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with access to product information, warranty tracking, and dealer locators.
- Bluetooth setup and troubleshooting
- System operating parameter monitoring
- Alarm diagnosis and history
- Access installation instructions and manuals
- Track warranty information
- Locate retailers and distributors
- Find rebate and financing information
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We’ve redesigned Ruud for Contractors to offer the industry’s most powerful, intuitive, and easy-to-use app. Whether you’re on a residential service call or installing 40 units at a major site, the free Ruud Contractor app’s Bluetooth® capability – paired with an enabled HVAC system -- makes set-up and troubleshooting simpler than ever. With Ruud for Contractors and eligible air systems, you can easily: Install - Set up systems quickly and easily with the new Bluetooth® setup - Monitor operating parameters from your phone while charging outdoor units - Verify system setup with access to system operating status - Quickly check for alarms Service - Diagnose active alarms and alarm history - Check system operating status - Easy step-by-step parts replacement and system setup The Ruud for Contractors app also offers powerful support for all of our air and water products, with a new Product Technical Support design that is easier to use and more accurate than ever: - Access installation instructions - Search parts lists - Download manuals - View tech sheets - Research consumer literature Track Warranty information - Scan and confirm model and ownership details - Check warranty status and share HVAC systems warranty certificate Locate - Look up retailers - Look up distributors Research - Find up-to-date rebate information - Research financing options - Offer extended warranty - Confirm AHRI information and certification for HVAC systems
Screenshots
Verdict
The clearest difference is price: Ruud at Free against AI Ductulator's $3.99. Ruud also leads on rating (4.6 vs 3.9) and update cadence (monthly vs every 52 months). AI Ductulator's advantage is chart position (#189 vs unranked) and device support (3 vs 1). On review sentiment, ads and in-app purchases 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
Ruud is free to download; AI Ductulator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ruud holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Ruud has 1.1K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 43% of AI Ductulator's written reviews are positive against 50% of Ruud's.
AI Ductulator ships an update every 52 months, Ruud monthly. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.
| Parameter | AI Ductulator | Ruud |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.9 (9 ratings) | 4.6 (1.1K ratings) — better |
| Positive reviews | 42.9% of reviews | 50.0% of reviews — better |
| Number of ratings | 9 | 1.1K — better |
| Update frequency | Every 52 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #189 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 89 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | pasquale dipaola | Rheem Manufacturing Company |
Customer experience
AI Ductulator
Ruud
In-app purchases
AI Ductulator
No in-app purchases
Ruud
No in-app purchases
