Construction Calculator vs ArchMM
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/
ArchMM
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Architectural scale, without the guesswork. ArchMM is a focused iPhone utility for scenic designers, model makers, architects, students, and anyone moving between real-world dimensions and physical scale models. Choose a conversion direction, enter the measurement you already know, select the drawing scale, and get a result ready to use in your drafting, model-making, or 3D-printing workflow. FEATURES • Convert full-size feet and inches to model millimeters • Reverse model millimeters to full-size feet and inches • Work at 1:1 or use standard architectural scales from 1″ through 1/16″ • Compare converted lengths with common 3D-printer bed dimensions • Copy results with one tap • Keep your selected scale and printer ready for the next calculation • Work offline with no account, advertising, analytics, or tracking ArchMM keeps the calculation close, clear, and out of the way—so you can return to the drawing, model, or printer setup in front of you.
Screenshots
Verdict
The clearest difference is in-app purchases: ArchMM at none against Construction Calculator's 9. Construction Calculator's advantage is update cadence (every 6 days vs every 2 weeks) and iOS requirement (16.4 vs 18.0). On price, ads and device support 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. ArchMM asks for nothing beyond the download.
Construction Calculator ships an update every 6 days, ArchMM every 2 weeks. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.
| Parameter | Construction Calculator | ArchMM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (625 ratings) — better | — |
| Positive reviews | 53.7% of reviews | — |
| Number of ratings | 625 — better | — |
| Update frequency | Every 6 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 49 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | xNeat.com | Brandon Davis |
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
ArchMM
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
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- Stair Calculator$4.99
- Fraction Calculator$9.99
- Construction Calculator2 variants$14.99
ArchMM
No in-app purchases
Questions
Is Construction Calculator free?
Is ArchMM free?
Do Construction Calculator or ArchMM have ads?
Which is updated more often, Construction Calculator or ArchMM?
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