Ductulator vs KNIPEX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ductulator
This app provides a simple and efficient tool for calculating the dimensions of square ventilation ducts. It's designed for engineers, architects, and contractors to generate data for mechanical ventilation, cooling, and HVAC projects. Quickly validate residential and commercial solutions with this easy-to-use calculator.
- Calculate equivalent round diameter of square ducts
- Convert square duct dimensions by volume ratio
- Provide metric equivalence
- Validate residential and commercial solutions
- Designed for engineers and architects
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Offrez-vous un outil de calcul simple et efficace pour calculer les dimensions de conduit de ventilation carré ! Destinée aux ingénieurs, aux architectes, aux entrepreneurs et à leurs équipes d’experts, notre application unique est un incontournable sur le chantier. Fonctionnel en tout temps, notre instrument de travail génère les données dont vous avez besoin pour réaliser vos projets de ventilation mécanique, d’aération du ventilateur de refroidissement, de conception générale pour les conduits de climatisation et de chauffage. Facile d’utilisation et optimisé pour tous les types d’éclairage ou d’écrans, notre Ductulator réinventé vous permettra de valider rapidement vos solutions résidentielles et commerciales. Offrez-vous aujourd’hui notre calculatrice conçue spécialement pour: -Calculer l'équivalent en rond (Diamètre) d'un conduit carré de ventilation -Convertir des dimensions de conduit carré par un rapport de volume d'une nouvelle dimension, amincie selon un ratio spécifique. -Donner l’équivalence métrique Parce que mesurer et valider vos calculs font partie du métier, le nôtre est de vous offrir ce qu’il y a de meilleur sur le marché! Faites le calcul!
KNIPEX
Easily locate the perfect pliers from an extensive catalog. Browse product details, save preferred items to a personal wish list, and ensure you always have the right tool for the job.
- Find the right pliers
- Access entire product range
- View product details
- Save favorites to wish list
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With the KNIPEX app you can always find the right pliers for you. Get access to the entire KNIPEX range, find out about our products and save your favorites on your personal wish list.a
Screenshots
Verdict
The clearest difference is review sentiment: KNIPEX at 100% against Ductulator's 0%. KNIPEX also leads on rating (4.9 vs 1.0) and ratings volume (131 vs 2). Ductulator's advantage is update cadence (weekly vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KNIPEX holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: KNIPEX has 131 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Ductulator's written reviews are positive against 100% of KNIPEX's.
Ductulator ships an update weekly, KNIPEX every 3 months. The most recent releases landed on September 26, 2026 and October 12, 2026 respectively.
| Parameter | Ductulator | KNIPEX |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.9 (131 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 131 — better |
| Update frequency | Weekly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 14 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Simon Leroux | KNIPEX |
Customer experience
Ductulator
KNIPEX
Bugs and requests
Ductulator
Not enough reviews yet to summarise bugs or requests.
KNIPEX
Requested features
4 requests- Video demonstrations for each tool
- Ability to compare multiple products
- Direct in-app purchasing
- More applications listed in search filters
In-app purchases
Ductulator
No in-app purchases
KNIPEX
No in-app purchases
Questions
Is Ductulator free?
Is KNIPEX free?
Which has better reviews, Ductulator or KNIPEX?
Do Ductulator or KNIPEX have ads?
Which is updated more often, Ductulator or KNIPEX?
Other comparisons
