Comparison

Trig Solver vs Flat Pattern Bend Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Trig Solver

This application calculates unknown sides and angles of both regular and right triangles. It supports various input combinations, including two sides and an angle, two angles and a side, three sides, or two sides and an angle for right triangles.

Highlights
  • Regular triangle solver
  • Right triangle solver
  • Calculate with 2 sides and an angle
  • Calculate with 2 angles and a side
  • Calculate with 3 sides
  • Calculate with side and angle (right triangle)
Features
Read full description

A Triangle Solver that has a regular triangle solver as well as a right triangle solver. Regular Triangle - Enter one of the following and hit Calculate: 2 sides and an angle 2 angles and a side 3 sides Right Triangle - Enter one of the following and hit Calculate: 2 sides a side and an angle

About

Flat Pattern Bend Calculator

This app provides accurate flat pattern layouts for complex sheet metal shapes and transitions. It simplifies calculations for cones, frustums, cylinders, and various transition pieces, saving time and reducing errors in fabrication projects.

Highlights
  • Cone calculations
  • Frustum calculations
  • Truncated cylinder layouts
  • Bend allowance calculations
  • Transition piece generation
  • Complex shape patterns
Features
Read full description

Unlock the power of advanced sheet metal calculations right at your fingertips. Flat Pattern Bend Calculator is a comprehensive tool designed for engineers, fabricators, and designers who need quick and accurate flat pattern layouts for a variety of complex shapes and transitions. This app simplifies complex metal sheet calculations, enabling users to accurately calculate flat pattern bends for various shapes and structures ► Key Features: Cone Calculations: Easily generate flat patterns for conical shapes. Frustum Eccentric (Parallel & Angle): Compute flat patterns for both parallel and angled eccentric frustums with precision. Truncated Cylinder: Obtain accurate layouts for truncated cylindrical shapes. Bend Allowance Calculations: Calculate bend allowances and deductions for various angles to ensure perfect bends every time. ► Transition Pieces: Rectangle to Circle: Seamlessly transition between rectangular and circular shapes. Rectangle to Circle Eccentric: Handle off-center transitions with ease. Circle to Rectangle: Convert circular shapes to rectangular patterns effortlessly. Rectangle to Rectangle: Calculate flat patterns for rectangular transitions. Complex Shapes: Pants & Pants Eccentric: Design complex bifurcated ducts and fittings. Breeches: Create layouts for Y-shaped connections. Tees: Generate patterns for T-shaped junctions. Pyramid: Calculate flat patterns for pyramid-shaped objects. Auger: Design helical screw patterns with precision. Sphere: Compute flat layouts for spherical shapes. Flange: Generate accurate flange patterns for pipe fittings. Why Choose Our App? • Efficiency: Reduce manual calculations and save valuable time on your projects. • Accuracy: Minimize errors with precise computations tailored to your specific needs. • User-Friendly Interface: Intuitive design makes complex calculations accessible to everyone. • Versatility: Ideal for HVAC ductwork, industrial piping, metal roofing, and custom fabrication projects. • Instant Results: Get immediate calculations to accelerate your workflow. Who Can Benefit? • Sheet Metal Fabricators • Mechanical Engineers • HVAC Professionals • Metalworkers and Welders • Industrial Designers • Students and Educators in Engineering Fields Take Your Fabrication Projects to the Next Level! Say goodbye to cumbersome manual calculations and hello to streamlined efficiency. Download the Sheet Metal Flat Pattern Calculator now and experience the future of metal fabrication. Download Today and Start Shaping Your Success! Privacy Policy : https://forms.gle/dnBUgnpqw4AREio97 Terms of Use : https://forms.gle/2uy2JqJa2JjkTZpo8

Screenshots

Trig Solver2 screens
Flat Pattern Bend Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Trig Solver at none against Flat Pattern Bend Calculator's 6. Trig Solver also leads on ads (none vs shown) and review sentiment (74% vs 45%). Flat Pattern Bend Calculator's advantage is update cadence (every 2 months vs every 28 months) and rating (4.6 vs 4.3). On price, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flat Pattern Bend Calculator sells 6 in-app purchases, starting at $4.99 per 7 days. Trig Solver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flat Pattern Bend Calculator holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 78 and 151 respectively. Written reviews complicate that: 74% of Trig Solver's written reviews are positive against 45% of Flat Pattern Bend Calculator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Trig Solver ships an update every 28 months, Flat Pattern Bend Calculator every 2 months. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 3 level
Trig Solver versus Flat Pattern Bend Calculator: the parameters behind the verdict, then further details
ParameterTrig SolverFlat Pattern Bend Calculator
PriceFreeFree
Rating4.3 (78 ratings)4.6 (151 ratings) — better
Positive reviews74.1% of reviews — better45.2% of reviews
Number of ratings78151 — better
Update frequencyEvery 28 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.0
Further details — not scored
Size8 MB61 MB
Age rating4+4+
DeveloperCreature Code Mobile, LLCBhavinkumar Satashiya

Customer experience

Trig Solver

All ratings78 ratings
Positive83.3%
Neutral5.1%
Negative11.5%
Written reviews85 reviews
Positive74.1%
Neutral5.9%
Negative20.0%

Flat Pattern Bend Calculator

All ratings151 ratings
Positive90.1%
Neutral1.3%
Negative8.6%
Written reviews31 reviews
Positive45.2%
Neutral6.5%
Negative48.4%

Bugs and requests

Trig Solver

Reported bugs

12 issues
  • Calculator rounds to '7' and '0'
  • Regular triangle calculations not correct
  • Answers in the wrong place (angles reversed)
  • App doesn't work anymore after update
  • Can't see input in dark mode
Show 7 more
  • Base hidden behind buttons on older phones
  • Fails with small machining angles (gives 90 degrees)
  • Wrong values under 'regular triangle'
  • Returned wrong values for side angle side
  • Incorrect values on irregular triangle
  • Paid to remove ads but ads still present
  • NaN results

Requested features

8 requests
  • Rotate the triangle
  • Show the work/steps
  • Add square root functionality
  • Option to pay to remove ads
  • Modify single value without reset
Show 3 more
  • Graph resultant triangle
  • Show more decimal places (3, 4, or 5)
  • Add comma as decimal separator option

Flat Pattern Bend Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Trig Solver

No in-app purchases

6 purchases

Flat Pattern Bend Calculator

Subscriptions5
  • Weekly Subscription$4.997 Days
  • MONTHLY UNLOCK$6.991 Month
  • Offer : Yearly Access$29.991 Year
Show 2 more
  • Yearly Access$39.991 Year
  • YEARLY UNLOCK$39.991 Year
One-time1
  • LIFETIME UNLOCK$69.99

Questions

Is Trig Solver free?
Trig Solver is free to download, with no in-app purchases.
Is Flat Pattern Bend Calculator free?
Flat Pattern Bend Calculator is free to download, with in-app purchases available.
Which has better reviews, Trig Solver or Flat Pattern Bend Calculator?
Flat Pattern Bend Calculator is rated higher. Trig Solver averages 4.3 out of 5 from 78 ratings, while Flat Pattern Bend Calculator averages 4.6 from 151 ratings.
Do Trig Solver or Flat Pattern Bend Calculator have ads?
Flat Pattern Bend Calculator shows ads; Trig Solver does not.
Which is updated more often, Trig Solver or Flat Pattern Bend Calculator?
Trig Solver ships an update every 28 months, and Flat Pattern Bend Calculator every 2 months. Most recently, Trig Solver was updated on September 22, 2026 and Flat Pattern Bend Calculator on September 24, 2026.

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