Right Angle vs Pipefitter Calculator (e4bc01)
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
Read full descriptionHide full description
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
Pipefitter Calculator (e4bc01)
Read full descriptionHide full description
Pipefitter Calculator is the no-nonsense field calculator built for pipefitters, steamfitters, and mechanical trades. Run the numbers right on the job — fast, accurate, and made for the way you actually work. CALCULATORS • Scientific calculator with trig (sin/cos/tan), logs, powers, roots, factorial, memory keys, and DEG/RAD modes • Calculation history so you never lose a result • Fraction converter tuned for the tape measure — decimal to fraction down to 1/64", fraction to decimal, and fraction arithmetic • Pipe formulas: circumference, flow area, slope/grade, volume, and thermal expansion PIPE LAYOUT TOOLS (PRO) • Parallel Offset — travel and run for equal-angle bends • Rolling Offset — combine rise and roll for true offset and travel • Saddle / Miter — branch connection cut dimensions • Elbow Takeout — long and short radius takeout • Travel & Run — Pythagorean pipe-run math • Pipe Weight — weight for carbon steel pipe by size, wall, and length BUILT FOR THE FIELD • Clean, high-contrast layout that's readable in daylight or a dark mechanical room • Light, dark, and automatic themes • Works offline — no account, no sign-up FREE & PRO The core calculators and fraction tools are free. Upgrade to Pipefitter Pro to unlock all pipe-layout tools, save your calculation history, and remove ads. Prefer to keep it simple? A one-time Remove Ads purchase clears the banners. https://pipe-calculations.replit.app/api/terms Questions or feedback? Email justinwalls1125@gmail.com
Screenshots
Verdict
The clearest difference is ads: Right Angle at none against Pipefitter Calculator (e4bc01)'s shown. Right Angle also leads on update cadence (every 5 days vs every 4 weeks). Pipefitter Calculator (e4bc01)'s advantage is iOS requirement (15.1 vs 26.0). On price, in-app purchases 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 and Pipefitter Calculator (e4bc01) sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Right Angle ships an update every 5 days, Pipefitter Calculator (e4bc01) every 4 weeks. The most recent releases landed on July 17, 2026 and September 19, 2026 respectively.
| Parameter | Right Angle | Pipefitter Calculator (e4bc01) |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (30 ratings) — better | — |
| Positive reviews | 73.3% of reviews | — |
| Number of ratings | 30 — better | — |
| Update frequency | Every 5 days — better | Every 4 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Jerry Mayers | Justin Walls |
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
Show 4 moreShow fewer
- Oblique Triangle Calculator$5.99
- Segment & Oblique Triangle$6.99
- Large Tip$9.99
- Huge Tip$29.99
Pipefitter Calculator (e4bc01)
- Pipefitter Pro7 Days trial$4.991 Month
- Remove Ads Forever$9.99
Questions
Is Right Angle free?
Is Pipefitter Calculator (e4bc01) free?
Do Right Angle or Pipefitter Calculator (e4bc01) have ads?
Which is updated more often, Right Angle or Pipefitter Calculator (e4bc01)?
Other comparisons















