iBend Offsets vs Duct Construction
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iBend Offsets
Calculate various types of offsets in electrical conduit using common or custom angles. Input distances in fractions for real-time results. Includes an Apple Watch companion app and an inclinometer/level feature.
- Calculate regular, parallel, and rolled offsets
- Supports common and custom bend angles
- Fractional input for offset distance
- Real-time calculation display
- Apple Watch companion app
- Inclinometer/Level feature
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If you bend offsets in electrical conduit or "pipe" as we call it, then this is the app for you. **METRIC IS NOT SUPPORTED** Calculate regular, parallel and rolled offsets in electrical conduit. Use the common 5° ,10°, 22.5°, 30°, 45 °or your custom angle.. Input offset distance in fractions - no need to convert to decimals. Calculations are displayed in fraction in "real time" as you adjust the offset distance or bend angle - no need to press a calculate button to see your results. Apple Watch companion app has been added to quickly solve offset calculations. Inclinometer / Level feature has been added to measure the bend angle as you bend. If you bend more than just offsets we encourage you to consider our other iPhone app : iBend Pipe.
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: iBend Offsets at 74% against Duct Construction's 0%. iBend Offsets also leads on rating (4.3 vs 1.0) and ratings volume (3 vs 1). Duct Construction's advantage is price ($0.99 vs $1.99). On update cadence, 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
iBend Offsets costs $1.99 and Duct Construction $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
iBend Offsets holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 74% of iBend Offsets's written reviews are positive against 0% of Duct Construction's.
iBend Offsets ships an update every 7 months, Duct Construction every 10 months. The most recent releases landed on September 21, 2026 and September 25, 2026 respectively.
| Parameter | iBend Offsets | Duct Construction |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 4.3 (3 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 74.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 7 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #200 | #140 — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.6 | 17.6 |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Francisco Alcala | Wassim Murr |
Customer experience
iBend Offsets
Duct Construction
In-app purchases
iBend Offsets
No in-app purchases
Duct Construction
No in-app purchases
Questions
Is iBend Offsets free?
Is Duct Construction free?
Which has better reviews, iBend Offsets or Duct Construction?
Do iBend Offsets or Duct Construction have ads?
Which is updated more often, iBend Offsets or Duct Construction?
Which is more popular, iBend Offsets or Duct Construction?
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