Rectangular Beam vs NautilusCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rectangular Beam
This app assists in the design and analysis of reinforced concrete rectangular beams. It calculates required reinforcement, draws beam sections with rebar details, and provides strain distribution diagrams. Users can also determine crack width and deflection, and generate PDF reports.
- Reinforcement calculation
- Beam section drawing
- Layer requirement check
- Strain distribution diagram
- Crack width calculation
- Deflection calculation
- PDF report generation
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Designing a Reinforced Concrete Rectangular Beam. Applied moment and forces: Bending moment, Shear and Torsion. What this application can do: • Provide the required reinforcement in Tension and Compression zone. • Draw a Section of Beam with all required reinforcement. • Check how many layers required in Tension and Compression Zone. • Draw Strain Distribution Diagram and provide ε for each rebars layer. • Get the Crack width. • Get the Deflection. • PDF report.
NautilusCalc
Easily compute the Golden Ratio, Silver Ratio, and Bronze Ratio. Save results, customize decimal places, and rounding methods. Ideal for designers, artists, students, and math enthusiasts.
- Golden Ratio, Silver Ratio, Bronze Ratio calculation
- Save calculation results
- Customizable decimal places
- Customizable rounding methods
- Intuitive interface
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NautilusCalc is a dedicated calculator app that allows you to easily compute the Golden Ratio, Silver Ratio, and Bronze Ratio. These timeless proportions are widely used in design, architecture, art, and education. Simply enter a value and the app instantly provides the calculated ratio, with options to save results for later reference. You can also customize decimal places and rounding methods, giving you precise control over your calculations. With its clean and intuitive interface, NautilusCalc is easy to use for everyone, from designers and artists to students and mathematics enthusiasts. It is the perfect tool for exploring and applying the beauty of proportions.
Screenshots
Verdict
The clearest difference is in-app purchases: Rectangular Beam at none against NautilusCalc's 1. NautilusCalc's advantage is price ($2.99 vs $4.99). On rating, review sentiment, ratings volume and update cadence 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
Rectangular Beam costs $4.99 and NautilusCalc $2.99 up front. NautilusCalc sells 1 one-off in-app purchase. Rectangular Beam asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 1.0 for Rectangular Beam against 1.0 for NautilusCalc. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Rectangular Beam | NautilusCalc |
|---|---|---|
| Price | $4.99 | $2.99 — better |
| Rating | 1.0 (2 ratings) | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 6 months | Every 6 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 3 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Rab Elias | kotobaz |
Customer experience
Rectangular Beam
NautilusCalc
In-app purchases
Rectangular Beam
No in-app purchases
NautilusCalc
- Save Function$1.99
Questions
Is Rectangular Beam free?
Is NautilusCalc free?
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