Trigonometry Calculator. vs Pipefitter's Mate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trigonometry Calculator.
This app calculates key values for right-angled and scalene triangles with high precision. It offers a user-friendly interface, flexible angle units, and includes a reference guide to trigonometric formulas. A subscription unlocks calculation steps and removes ads.
- Right-angled & scalene triangle support
- Formula reference guide
- Accurate side, angle, and area calculations
- High precision to 14 decimal places
- Flexible angle units (degrees/radians)
- User-friendly interface
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Triangle Trigonometry Calculator Effortlessly calculate key values for both right-angled and scalene triangles with this intuitive, high-precision trigonometry calculator. Key Features: • Right-Angled & Scalene Support: Easily solve both right-angled and scalene triangles based on the values you know. • Formula Reference: Learn and solve with confidence by accessing a clear, organized guide to all triangle formulas used in the app. • Accurate Calculations: Quickly determine sides, angles, and area with reliable trigonometric formulas. • High Precision: Results are calculated to 14 decimal places for maximum accuracy. • Flexible Angle Units: Choose between degrees or radians for all angle inputs and outputs. • User-Friendly Interface: A clean, minimal design for fast, straightforward calculations. • Fast and Efficient: Ideal for students, engineers, and professionals needing quick, accurate results anytime. Subscribe to unlock calculation steps, formulas, and remove ads!
Pipefitter's Mate
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Pipefitter's Mate — seven pipe layout calculators for the field. Offline. No ads. No accounts. Enter the dimensions and the numbers are already there. Cut list, ordinates and spool weight update as you type, and every result shows the method behind it, so you can check it before you cut. THE SEVEN TOOLS Simple offset RUN and OFFSET in. TRAVEL, PIPE CUT, SETBACK, CUT ANGLE, INSIDE ARC and OUTSIDE ARC out. Rolling (compound) offset Set and roll across two planes. True offset, travel and pipe cut, with the derivation shown. Lateral branch Fishmouth ordinates for a branch meeting a header at any angle from 30 to 90 degrees. Saddle branch Ordinates for a square 90 degree branch. The lateral tool reproduces this exactly at 90. Trunnion / dummy leg Ordinates for a support landing on the back of an elbow, checked against published cutback data. Equal-spread offsets Stagger a bank of two to four parallel lines so the spacing stays even through the offset. Flange two-holing Bolt hole layout straddling the centreline, to ASME B16.5. ELBOW ANGLES Presets for 45, 22.5, 11.25, 30 and 60 degrees plus custom, with the run derived for you. PIPE DATA, BUILT IN NPS 1/2" through 40". Schedules STD, XS, XXS, SCH 40 and SCH 80. Long and short radius elbows. Wall thickness to ASME B36.10M, elbow geometry to B16.9, flanges to B16.5. Where a schedule is not standard for a given size, the app says so rather than guessing. CUT LIST AND WELD GAP When the pipe cut exceeds stock length, the app works out the sticks and generates a cut list, deducting your root gap per joint across elbow welds and field welds. Set stock length to match your region: 6 m, 20 ft, 24 ft, 40 ft or custom. SPOOL WEIGHT Pipe, both elbows and the weld beads, totalled — so you know what you are lifting before it is on the strop. DRAWINGS A CAD-style diagram for every tool, with dimension callouts and weld markers. Pinch to zoom and pan. Legible in light and dark. TRADE INDEX A built-in reference covering fabrication, geometry, measurement and pipe sizing terms. ALSO Save and load named spools. Switch between millimetres and inches with one tap. Screen-stays-on mode for when your hands are full. Bigger type and glove-sized targets throughout. PROJECT WORKFLOW Enter feet, inches and fractions with a dedicated keypad, or use decimal millimetres. Choose display precision without rounding the underlying calculation. Open diagrams fullscreen to inspect large layouts. Organise saved calculations by project, line and spool. Add drawing numbers, revisions, operator details and notes, then include them in fabrication PDFs. Search your library and make copies without overwriting the original. Export and restore local JSON backups through the system file picker. BRANCH TEMPLATES Create tiled saddle and lateral templates for A4, A3 or Letter paper, with overlap, alignment marks and a 100 mm calibration square. Print at actual size and measure both axes before use. Templates omit kerf, bevel, wall thickness and weld shrinkage; always check against the workpiece. Technical notes explain the calculation assumptions and application limits. Bundled standards data has no recorded source edition and is not a substitute for current project standards. PRIVATE BY DESIGN Calculations work without a network connection and stay on your device. Network access is used only to check the App Store for a newer version. No accounts, no data collection, no ads, no tracking. Pipefitter's Mate is a tool to assist. Always verify against project specifications before fabrication.
Screenshots
Verdict
The clearest difference is price: Trigonometry Calculator. at Free against Pipefitter's Mate's $7.99. Pipefitter's Mate's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement 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
Trigonometry Calculator. is free to download; Pipefitter's Mate costs $7.99 up front. Trigonometry Calculator. sells 2 in-app purchases, starting at $2.99 per month. Pipefitter's Mate asks for nothing beyond the download.
Trigonometry Calculator. ships an update every 2 weeks, Pipefitter's Mate weekly. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.
| Parameter | Trigonometry Calculator. | Pipefitter's Mate |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 64 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Horitech | Florin Chiriac |
In-app purchases
Trigonometry Calculator.
- Monthly3 Days trial$2.991 Month
- Annual3 Days trial$24.991 Year
Pipefitter's Mate
No in-app purchases
Questions
Is Trigonometry Calculator. free?
Is Pipefitter's Mate free?
Do Trigonometry Calculator. or Pipefitter's Mate have ads?
Which is updated more often, Trigonometry Calculator. or Pipefitter's Mate?
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