Right Angle vs AngleCalculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Right Angle
This app calculates triangles and segments of circles. It supports various angle input formats and offers solutions for oblique triangles and circle segments with optional add-ons. A right triangle calculator is included for free.
- Triangle solver
- Circle segment calculator
- Multiple angle units (degrees, radians, DMS, grade, x/12)
- Oblique triangle solver (add-on)
- Circle segment solver (add-on)
- Free right triangle calculator
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Right Angle is a calculator built for carpenters, builders, surveyors, machinists, and engineers — anyone who needs to solve a triangle, a trapezoid, or a circle without reaching for a notepad and the law of sines. Enter any valid combination of sides and angles and Right Angle solves the rest, including perimeter and area. The right triangle calculator is included for free; every other shape unlocks with a one-time Pro purchase or subscription. SHAPES • Right triangle (free) • Oblique triangle • Isosceles, right, and general trapezoids • Full circle — enter radius, diameter, or circumference • Segment of a circle ANGLE FORMATS • Decimal degrees • Radians • Degrees / minutes / seconds (DMS) • Percent grade • Pitch (x-over-12) LENGTH FORMATS • Decimal — the original, unitless entry. Best for metric. • Feet, inches & fractions — type values like 2' 5 1/2". • Inches & fractions — type values like 40 1/2". Pick a fraction precision from 1/2 down to 1/64 inch. Inputs and outputs both use the format you choose, and you can switch any time from Settings. DESIGNED FOR THE JOB SITE • A custom on-screen keyboard puts the symbols you need — feet, inches, fraction slash, degree, prime, double-prime — one tap away. • Helpful errors when an input combination can't be solved, instead of silent failures. • Available in English and Spanish — iOS picks the language to match your device. • Full VoiceOver support across the keyboard, input fields, shape diagrams, and results. Animations respect the Reduce Motion setting. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: http://rightangleapp.com/privacy.html
AngleCalculator
This app simplifies angle calculations and conversions. It handles degrees, minutes, and seconds (DMS) for applications in construction, surveying, and GPS. Perform conversions, mixed calculations, and track your history.
- Degrees to DMS conversion
- DMS to Degrees conversion
- Mixed angle calculations
- Continuous angle calculations
- Calculation history
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A calculator app for angle conversions. Easily convert and calculate degrees, minutes, and seconds (DMS) commonly used in construction, surveying, and GPS positioning. Features: Convert between degrees and DMS Perform mixed calculations (addition and subtraction) Continuous angle calculations View calculation history
Screenshots
Verdict
The clearest difference is rating: AngleCalculator at 4.6 against Right Angle's 3.9. AngleCalculator also leads on in-app purchases (none vs 9) and review sentiment (88% vs 73%). Right Angle's advantage is ads (none vs shown). On price, ratings volume, update cadence 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 sells 9 in-app purchases, starting at $2.99 per month. AngleCalculator asks for nothing beyond the download.
AngleCalculator holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 30 and 87 respectively. Written reviews point the same way: 73% of Right Angle's written reviews are positive against 88% of AngleCalculator's.
Right Angle ships an update every 5 days, AngleCalculator weekly. The most recent releases landed on July 17, 2026 and September 22, 2026 respectively.
| Parameter | Right Angle | AngleCalculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (30 ratings) | 4.6 (87 ratings) — better |
| Positive reviews | 73.3% of reviews | 88.2% of reviews — better |
| Number of ratings | 30 | 87 — better |
| Update frequency | Every 5 days — better | Weekly |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Jerry Mayers | EIICHI KOMINE |
Customer experience
Right Angle
AngleCalculator
In-app purchases
Right Angle
- Renews Monthly14 Days trial$2.991 Month
- Renews Yearly1 Month trial$14.991 Year
- Small Tip$2.99
- Medium Tip$4.99
- Segments Calculator$5.99
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- Oblique Triangle Calculator$5.99
- Segment & Oblique Triangle$6.99
- Large Tip$9.99
- Huge Tip$29.99
AngleCalculator
No in-app purchases
Questions
Is Right Angle free?
Is AngleCalculator free?
Which has better reviews, Right Angle or AngleCalculator?
Do Right Angle or AngleCalculator have ads?
Which is updated more often, Right Angle or AngleCalculator?
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