Comparison

Trig Solver vs Pipe Trades Pro Calc

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

Pipe Trades Pro Calc

This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.

Highlights
  • Advanced measurement calculations
  • Fluid dynamics and pressure analysis
  • Comprehensive pipe data access
  • Offline functionality
  • User-centric interface
  • Material and dimension options
Features
Read full description

FREE Try Before You Buy trial, your App Store account is not charged by Apple during the free trial. Welcome to Pipe Trades Pro for iPhone, a game-changing tool for professionals in the pipe trades industry. This application is expertly designed to enhance the efficiency and accuracy of pipefitters, steamfitters, sprinklerfitters, and welders. From complex calculations to extensive pipe data, Pipe Trades Pro is your go-to solution for a streamlined work process. ----- ADVANCED CALCULATION CAPABILITIES ----- • Tackle complex measurements like cut lengths, take-outs, and odd-degree fittings easily • Navigate through right angles, offsets, and intricate rolling offsets confidently • Utilize tools for determining pipe areas, fill weights, and unit conversions • Efficiently manage parallel pipe cutbacks with accurate alignment and spacing • Incorporate feet-inch-fractions and trigonometry for precise measurement adjustments ----- FLUID DYNAMICS AND PRESSURE ANALYSIS ----- • Accurately compute flow rates, velocity, force, and volumes for diverse fluid types • Assess pressure loss effectively across any pipe size, type, or distance • Make informed decisions based on dynamic fluid properties and behaviors • Optimize piping systems for maximum flow efficiency and safety ----- COMPREHENSIVE PIPE DATA ACCESS ----- • Access vital information for pipes up to 42 inches, including diameters and wall thickness • Select from materials like steel, stainless steel, brass, aluminum, etc. • Quickly reference internal area and filled weight per foot for different pipe types • Make informed choices with extensive material and dimension options ----- USER-CENTRIC INTERFACE DESIGN ----- • Experience a streamlined, intuitive interface designed for quick and easy navigation • Access key features with minimal taps, saving time and enhancing user experience • Benefit from an interface that optimizes the iPhone’s screen space and usability • Enjoy a clutter-free, visually appealing layout for stress-free operation • Adapt quickly with an interface designed for both new and experienced users ----- OFFLINE FUNCTIONALITY AND SUPPORT ----- • Utilize full app capabilities without an internet connection, perfect for on-site tasks • Access all data and features offline, ensuring uninterrupted productivity • Rely on consistent app performance in remote or internet-challenged locations • Receive dedicated customer support for any queries or technical issues Pipe Trades Pro for iPhone is not just an application; it's a comprehensive tool transforming how pipe trade professionals work. It combines advanced technology, user-friendly design, and practical features to create a smoother, more efficient workflow. Embrace the future of pipe layout and design with Pipe Trades Pro, where accuracy meets efficiency. SUBSCRIPTION INFORMATION Your Free Trial period is free of charge. Subscriptions offered will automatically renew at the end of the chosen period. Payment will be charged to your Apple account upon purchase confirmation. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Subscriptions. LEGAL Pipe Trades Pro is a trademark of Calculated Industries, Inc. Copyright 2025

Screenshots

Trig Solver2 screens
Pipe Trades Pro Calc4 screens

Verdict

The call

The clearest difference is rating: Pipe Trades Pro Calc at 4.8 against Trig Solver's 4.3. Pipe Trades Pro Calc also leads on ratings volume (4.3K vs 78) and update cadence (every 7 months vs every 28 months). Trig Solver's advantage is in-app purchases (none vs 6) and review sentiment (74% vs 42%). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Pipe Trades Pro Calc sells 2 in-app purchases, starting at $4.99 per month. Trig Solver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pipe Trades Pro Calc holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Pipe Trades Pro Calc has 4.3K ratings behind it against 78, so its average is the more settled of the two. Written reviews complicate that: 74% of Trig Solver's written reviews are positive against 42% of Pipe Trades Pro Calc'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, Pipe Trades Pro Calc every 7 months. The most recent releases landed on September 22, 2026 and September 27, 2026 respectively.

Scorecard8 real differences · 3 level
Trig Solver versus Pipe Trades Pro Calc: the parameters behind the verdict, then further details
ParameterTrig SolverPipe Trades Pro Calc
PriceFreeFree
Rating4.3 (78 ratings)4.8 (4.3K ratings) — better
Positive reviews74.1% of reviews — better42.5% of reviews
Number of ratings784.3K — better
Update frequencyEvery 28 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#195 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better14.0
Further details — not scored
Size8 MB51 MB
Age rating4+12+
DeveloperCreature Code Mobile, LLCCalculated Industries

Customer experience

Trig Solver

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

Pipe Trades Pro Calc

All ratings4,282 ratings
Positive95.6%
Neutral1.2%
Negative3.2%
Written reviews106 reviews
Positive42.5%
Neutral11.3%
Negative46.2%

User reviews

Trig Solver

From 78 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🚀 Fast calculations
  • ✅ Accurate results (for many users)
  • 💡 Useful for schoolwork
  • 🛠️ Great for job site/machinists

Room to improve

  • 🐛 Inaccurate results reported
  • 💸 Ads are present and distracting
  • 📉 Rounding issues
  • 🚫 No option to remove ads (for some)
  • ⚠️ App stopped working after updates

Pipe Trades Pro Calc

From 4.3K App Store ratings

What we love

  • 🔢 Useful calculator tool
  • 🧠 Helpful for pipe fitters and welders
  • 📱 Convenient to have on mobile device
  • 🔍 Accurate calculations

Room to improve

  • 💰 Subscription model is too expensive
  • 🔒 Requires internet connection to verify subscription
  • 🔄 Used to be a one-time purchase
  • 🤔 Confusing transition from one-time to subscription

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

Pipe Trades Pro Calc

Reported bugs

3 issues
  • App freezes or stops working after updates
  • Calculation errors with fractions
  • Issues with reinstalling or transferring purchases

Requested features

4 requests
  • Ability to use app without subscription
  • Support for larger pipe sizes
  • Add a back/undo button
  • Rotate screen orientation

In-app purchases

None

Trig Solver

No in-app purchases

2 purchases

Pipe Trades Pro Calc

Subscriptions2
  • 1 Month Full Access14 Days trial3 variants$4.991 Month
  • 1 Year Full Access14 Days trial3 variants$39.991 Year

Questions

Is Trig Solver free?
Trig Solver is free to download, with no in-app purchases.
Is Pipe Trades Pro Calc free?
Pipe Trades Pro Calc is free to download, with in-app purchases available.
Which has better reviews, Trig Solver or Pipe Trades Pro Calc?
Pipe Trades Pro Calc is rated higher. Trig Solver averages 4.3 out of 5 from 78 ratings, while Pipe Trades Pro Calc averages 4.8 from 4.3K ratings.
Do Trig Solver or Pipe Trades Pro Calc have ads?
Neither Trig Solver nor Pipe Trades Pro Calc shows ads.
Which is updated more often, Trig Solver or Pipe Trades Pro Calc?
Trig Solver ships an update every 28 months, and Pipe Trades Pro Calc every 7 months. Most recently, Trig Solver was updated on September 22, 2026 and Pipe Trades Pro Calc on September 27, 2026.

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