Triangle Angles Calculator vs Right Angle PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triangle Angles Calculator
Easily calculate unknown sides, angles, and other parameters for various triangle types. Features interactive visualizations and works offline, making it ideal for students and professionals needing quick, accurate geometric solutions.
- Calculate unknown triangle parameters from 2-3 known values
- Interactive visualization of triangle types
- Real-time calculations with intuitive interface
- Offline functionality
- Supports metric and imperial units
- Calculates sides, angles, area, perimeter, medians, and circles
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Triangle Calculator - Comprehensive Geometry Tool With this intuitive application, you can easily perform calculations for various types of triangles: * Right triangle (with 90° angle) * Scalene triangle (all sides and angles different) * Isosceles triangle (two equal sides, two equal angles) * Equilateral triangle (all sides equal, all angles 60°) Key features: - Calculate unknown parameters when you know just 2-3 values - Clear, interactive visualization of each triangle type - Simple and intuitive interface with real-time calculations - No internet connection required - works completely offline - Supports both metric and imperial units Parameters you can calculate: - All sides, heights, and angles - Perimeter and area - Medians and bisectors - Coordinates of the geometric center (centroid) - Radius and coordinates of inscribed and circumscribed circles - Projections and special components in right triangles Perfect for students, teachers, engineers, architects, designers, and anyone working with geometric calculations. Save time on complex triangle calculations and always get accurate results with proper precision. This powerful yet simple tool helps you solve triangle problems in seconds. Just input the known values and get comprehensive results with all related parameters calculated automatically. No ads, no subscriptions - just a clean, functional triangle calculator at your fingertips.
Right Angle PRO
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The right-angle calculator built for the job site. RightAngle PRO handles the units you actually use — fractional inches (1/16, 1/32, 1/64), feet & inches, decimal inches, and millimeters — with instant diagram preview and high-precision results. Key Features Fractional Inches & Feet Support Choose your precision: 1/16", 1/32", or 1/64" — matched to your tape measure. Enter any fraction and the result automatically rounds to your selected precision. Sub-display instantly shows the converted value in your chosen second unit. Customizable Unit Combinations Mix and match unit displays freely in any combination. Real-Time Preview Every digit you type or delete is instantly reflected in the diagram. Input errors are immediately visible, making operation intuitive and efficient. Massive Calculation Range: Up to 500 km From small building components to wide-area surveying simulations — calculate angles to mountain peaks or tall structures while referencing a map. High Precision Display Side lengths displayed to 4 decimal places. Angles to 6 decimal places (4 in DMS). Tap any value for detailed precision readout. Left/Right Diagram Toggle Flip the diagram between right-rising and left-rising with one tap. PDF Export Save and print calculation results with diagrams as PDF. Easy to share on-site or by email. Light & Dark Mode Switch between Light and Dark mode to suit your environment and preference. Works Without Internet All calculations run offline. Calculation data is processed only on your device. Specifications ■ Supported Units ・ft & in (1/16 fractional) ・ft & in (1/32 fractional) ・ft & in (1/64 fractional) ・ft & in (decimal) ・Inches (1/16 fractional) ・Inches (1/32 fractional) ・Inches (1/64 fractional) ・Inches (decimal) ・Feet ・Millimeters (mm) ・Meters (m/cm/mm) ■ Maximum Input Meter mode: up to 500 km Other modes: up to 1,000 m ■ Calculation Precision ・Sides: rounded at 5th decimal, displayed to 4th ・Fractions: any fraction accepted — result rounds to 1/16, 1/32, or 1/64 ・Angles: [Degrees] Diagram: 2 decimal / Precision: 6 decimal [DMS] Diagram: whole seconds / Precision: 4 decimal (seconds) ・1 inch = 25.4 mm (exact) ・1 foot = 304.8 mm (exact) Who Is This For? Carpenters, framers, contractors, and construction professionals working with imperial measurements. Anyone who needs to calculate angles, slopes, or diagonal lengths on the job site. DIY enthusiasts and model makers who need precise angle calculations. Those who frequently convert between fractional inches, feet, and metric. Please Note Every effort has been made to ensure calculation accuracy. However, minor rounding errors may occur. Please verify all results before use in construction or professional work. As we continually improve the app, if there is any discrepancy between this description and the actual behavior, the app's behavior takes precedence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
The clearest difference is in-app purchases: Triangle Angles Calculator at none against Right Angle PRO's 2. Triangle Angles Calculator also leads on update cadence (every 3 days vs monthly) and iOS requirement (12.0 vs 15.6). 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. Right Angle PRO sells 2 in-app purchases, starting at $3.99 per month. Triangle Angles Calculator asks for nothing beyond the download.
Triangle Angles Calculator ships an update every 3 days, Right Angle PRO monthly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Triangle Angles Calculator | Right Angle PRO |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 28 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Dmitriy Trofimov | Masashi Konno |
In-app purchases
Triangle Angles Calculator
No in-app purchases
Right Angle PRO
- RightAngle PRO Monthly$3.991 Month
- RightAngle PRO Yearly$39.991 Year
Questions
Is Triangle Angles Calculator free?
Is Right Angle PRO free?
Do Triangle Angles Calculator or Right Angle PRO have ads?
Which is updated more often, Triangle Angles Calculator or Right Angle PRO?
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