Ductulator vs Smartuli
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.
Smartuli
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Smartuli is designed to simplify and enhance workforce management for businesses of all sizes. By tracking employee movements and attendance with precision, Smartuli ensures that managing your team’s time and productivity is easier than ever. Key Features: Real-Time Tracking: Monitor employee attendance and movements in real-time, ensuring accuracy and reliability in workforce management. Effortless Check-Ins: Employees can check in and out with just a tap, using their mobile devices, making the process seamless and paperless.
Screenshots
Verdict
The clearest difference is price: Smartuli at Free against Ductulator's $3.99. Smartuli also leads on iOS requirement (15.1 vs 18.6). Ductulator's advantage is chart position (#39 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
Smartuli is free to download; Ductulator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.
| Parameter | Ductulator | Smartuli |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.7 (317 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 317 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #39 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Wassim Murr | Ilia Manizhashvili |
In-app purchases
Ductulator
No in-app purchases
Smartuli
No in-app purchases
Questions
Is Ductulator free?
Is Smartuli free?
Do Ductulator or Smartuli have ads?
Which is updated more often, Ductulator or Smartuli?
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