# senspower vs Duct Construction

The clearest difference is price: senspower at Free against Duct Construction's $0.99. senspower also leads on update cadence (every 4 months vs every 10 months) and iOS requirement (10.0 vs 17.6). Duct Construction's advantage is chart position (#134 vs unranked). On ads, in-app purchases and device support there is nothing between them.

senspower is free to download; Duct Construction costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

senspower ships an update every 4 months, Duct Construction every 10 months. The most recent releases landed on October 20, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | senspower | Duct Construction |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/duct-construction/id6443518338/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | — | Paid |
| Best chart rank | — | **#134** |
| Size | 19 MB | 1 MB |
| Requires iOS | **10.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sayme Wireless Sensor Network](https://appshunter.io/developer/1328360065) | [Wassim Murr](https://appshunter.io/developer/1474939474) |

## What reviewers say

### senspower

[App page](https://appshunter.io/ios/app/senspower/id1449816737)

**Features:** macOS Compatibility

**In-app purchases:** none


### Duct Construction

[App page](https://appshunter.io/ios/app/duct-construction/id6443518338)

**Currently charting:** #134 Top Paid · Productivity (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is senspower free?

senspower is free to download, with no in-app purchases.

### Is Duct Construction free?

Duct Construction costs $0.99, with no in-app purchases.

### Do senspower or Duct Construction have ads?

Neither senspower nor Duct Construction shows ads.

### Which is updated more often, senspower or Duct Construction?

senspower ships an update every 4 months, and Duct Construction every 10 months. Most recently, senspower was updated on October 20, 2026 and Duct Construction on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*