Offset Calc App ANSI vs Duct Construction
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Offset Calc App ANSI
This industrial pipe construction tool calculates pipe offsets and weights according to ANSI/ASME standards. It offers imperial and metric calculations for various pipe sizes and fittings, helping users save material, time, and stress.
- Imperial and metric offset calculations
- Pipe and profile weight calculations
- ANSI/ASME standard nominal diameters
- Calculation with length or elbow angle
- Offsets with tee
- History of calculations
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The app is used in the industrial pipe construction. (American Standard ASME B36.10/ B16.9) Functions: Calculation (imperial and metric) of offsets and weight calculation of pipes, offsets and profiles. All nominal diameter and fittings are provided, so it will be very easy for you to solve complex calculations quickly. Even if you put in false information, you can not get wrong solutions. This way you can save material, time and stress. The App is your help in a hectic and busy working day. - 28 offset calculations (8 offset types with 2 or 4 interrupts) - Given nominal diameters (NPS 1-40/DN 25-1000) according to ANSI/ASME with outside diameter (exemple NPS 5/DN 100- 4.5in/114,3mm), - Calculation with lenght or elbow angle - 2 types of elbow - Manual input of elbow radius - Offsets with tee - Individual gap - Detailed help and description - History of your calculations Results - Cut length - Elbow angle - Inside and outside cutting values of the elbow - Take off, chord - Installation length of offset - Calculation of offset weight Weight calculation of - Pipes, - 2 types of elbow - Channels (C3-C10) - H Beams (W4-W10), - Manual inputs. Single weights will be added to the list, so that you can use the weight of the construction units to choose the right lifting gear.
Duct Construction
This app helps determine duct construction and reinforcement options based on duct size and system pressure class. It provides condensed lists of suitable options, saving time spent on manual calculations and table lookups. Results are based on industry standards for galvanized steel duct sheets.
- Duct size range from 2" to 120"
- Pressure classes up to 4 in.wg
- Calculates duct weights per linear foot
- Determines required duct gauge and reinforcement spacing
- Clear illustrations for reinforcement types
- Simple and effective UI design
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Get all duct construction and reinforcement options by entering the duct size and system pressure class. The aim of the app is to save time spent browsing through tables and texts to determine suitable options, by relying on the most widely used standards and providing a condensed list of available duct construction options. The results are based on galvanized steel duct sheets conforming to ASTM A653 & A924. The app does not cover all aspects of duct construction, as it is intended as a guide; Reliance on related standards, as well as good engineering sense is the basis for proper design. Features: 1. Duct sizes from 2" to 120" 2. Pressure classes 0.5 in.wg, 1 in.wg, 2 in.wg, 3 in.wg and 4 in.wg. 3. Provides the duct weights for each option per linear foot. 4. Provides required duct gauge and reinforcement spacing. 5. Clear illustration for each reinforcement type, as well as dimensions. 6. Simple and effective UI design. Roadmap / Upcoming updates: 1. SI units. 2. More pressure class options. 3. User will be able to save and retreive duct data for future reference. 3. More Reinforcement options, including tie-rodding. Request a feature: welmurr@icloud.com
Screenshots
Verdict
The clearest difference is review sentiment: Offset Calc App ANSI at 100% against Duct Construction's 0%. Offset Calc App ANSI also leads on rating (5.0 vs 1.0) and update cadence (monthly vs every 10 months). Duct Construction's advantage is price ($0.99 vs $6.99). On ads, in-app purchases, monetization model and chart position 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
Offset Calc App ANSI costs $6.99 and Duct Construction $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Offset Calc App ANSI holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Offset Calc App ANSI has 19 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Offset Calc App ANSI's written reviews are positive against 0% of Duct Construction's.
Offset Calc App ANSI ships an update monthly, Duct Construction every 10 months. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.
| Parameter | Offset Calc App ANSI | Duct Construction |
|---|---|---|
| Price | $6.99 | $0.99 — better |
| Rating | 5.0 (19 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 19 — better | 1 |
| Update frequency | Monthly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #200 | #194 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 95 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Steffen Weber | Wassim Murr |
Customer experience
Offset Calc App ANSI
Duct Construction
In-app purchases
Offset Calc App ANSI
No in-app purchases
Duct Construction
No in-app purchases
Questions
Is Offset Calc App ANSI free?
Is Duct Construction free?
Which has better reviews, Offset Calc App ANSI or Duct Construction?
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