Construction Calculator vs SM Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Construction Calculator
This app is a powerful calculator designed for construction and woodworking professionals, as well as students. It simplifies calculations involving feet, inches, and fractions, offering conversions between various measurement units and displaying equations and results simultaneously. Advanced features are available through optional in-app purchases.
- Decimal to fraction converter
- Fraction to decimal conversion
- Simultaneous equation and result display
- Advanced editing capabilities
- Today Screen integration
- Support for multiple dimensional formats
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Award Winning Feet Inch Fraction Construction Calculator for iPhone and iPad. Designed with simplicity, usability and beauty in mind! FEATURES: - Elegant & Intuitive interface - Decimal to fraction converter - Fraction to decimal conversion - Displays both the equation & the result at the same time - Advanced editing by easily going back and forth - Can be added to Today Screen Ideal for those who work in construction, woodworking and for students to check up their homework! If you are looking for more advanced features you can upgrade to one or more of the following: - Stairs Calculator - Common Rafter Calculator - Hip/Valley Rafter Calculator - Triangle Calculator - Circular Calculator - Arc Calculator - Work in and convert between all building dimensional formats: feet-inch-fractions, inch fraction, yards, decimal feet (10th, 100th), decimal inches and metric (km, m, cm, mm) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SM Calculator
Easily convert between standard and metric units for calculations. Supports decimal and fraction values in inches, and millimeters. Tap values to see equivalents or add them to a pin list for quick access.
- Cross-unit calculations
- Decimal and fraction support
- Metric unit conversion
- Tap to convert values
- Pin list for quick access
- Conversion table
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This app is designed to aid in cross-unit calculations between Standard and Metric units. With the "Calculator" tool you can execute calculations across standard decimal and fraction values (in inches), as well as metric values (in millimeters). In Addition, you can tap on any value in the "transcript" output to see its equivalent in the alternate unit type/style. If you tap the icon next to a value you can add that value to the "Pins" view, which can be seen by tapping the icon in the lower right portion of the transcript view. With the "Convert" tool you can select one of three input fields (millimeter, standard decimal, or standard fraction) and type in a value to get an instant conversion into the other two unit types. The "Table" tool is a simple table with common measurements converted between metric and standard (decimal & fraction). This app is a work in progress with more features to come! Feedback and feature suggestions are welcome.
Screenshots
Verdict
The clearest difference is in-app purchases: SM Calculator at none against Construction Calculator's 9. SM Calculator also leads on update cadence (daily vs every 5 days) and rating (5.0 vs 4.7). Construction Calculator's advantage is ratings volume (669 vs 2). On price, ads, device support and iOS requirement 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. Construction Calculator sells 8 in-app purchases, starting at $4.99 per month. SM Calculator asks for nothing beyond the download.
SM Calculator holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Construction Calculator has 669 ratings behind it against 2, so its average is the more settled of the two.
Construction Calculator ships an update every 5 days, SM Calculator daily. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.
| Parameter | Construction Calculator | SM Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (669 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 53.7% of reviews | — |
| Number of ratings | 669 — better | 2 |
| Update frequency | Every 5 days | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 | 16.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | xNeat.com | Body Culture |
Customer experience
Construction Calculator
SM Calculator
Bugs and requests
Construction Calculator
Reported bugs
3 issues- Calculation errors and incorrect results
- Freezing and crashing on certain devices
- Compatibility issues with newer OS versions
Requested features
4 requests- Bring back fraction display in results
- Allow offline use without subscription
- Add more construction-specific tools
- Improve user interface and usability
SM Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Construction Calculator
- Construction Calculator3 Days trial$4.991 Month
- Construction Calculator7 Days trial$39.991 Year
- Themes$1.99
- Calculator Plus$3.99
- Rafter$4.99
Show 3 moreShow fewer
- Stair Calculator$4.99
- Fraction Calculator$9.99
- Construction Calculator2 variants$14.99
SM Calculator
No in-app purchases
Questions
Is Construction Calculator free?
Is SM Calculator free?
Which has better reviews, Construction Calculator or SM Calculator?
Do Construction Calculator or SM Calculator have ads?
Which is updated more often, Construction Calculator or SM Calculator?
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