Comparison

Triangle Calculator Pythagoras vs Triangle Calculator Plus

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

Head to head
About

Triangle Calculator Pythagoras

This geometry tool simplifies right-angled triangle calculations. It instantly solves for missing sides, angles, area, and perimeter using the Pythagorean theorem and trigonometry. It also displays the formulas used for each calculation, aiding understanding.

Highlights
  • Pythagorean Theorem Solver
  • Trigonometry Functions
  • Instant Area and Perimeter Calculation
  • View Calculation Formulas
  • Input known measurements to find missing values
Features
Read full description

Mastering geometry is now easier than ever with Triangle Calculator Pythagoras. This is your essential tool for solving complex right-angled triangle problems quickly and accurately. Forget struggling with manual calculations, our app provides instant answers with clear explanations. Simply enter the values you know, and let the calculator do the rest. Whether you need to find the length of a side using the Pythagorean theorem or calculate a missing angle with trigonometry, our app handles it all in seconds. PERFECT FOR This calculator is an indispensable aid for students tackling math homework, helping you understand the concepts behind the answers. It is also a vital on the job tool for engineers, carpenters, architects, and designers who require fast and precise measurements for their projects. KEY FEATURES Pythagorean Theorem Solver Enter the lengths of two sides to instantly find the length of the third side. The app correctly calculates the hypotenuse or one of the legs with pinpoint accuracy. Trigonometry Functions Effortlessly find missing angles and side lengths using sine, cosine, and tangent. Our calculator makes trigonometry simple and accessible for everyone. Instant Area and Perimeter Beyond sides and angles, the app automatically calculates the area and perimeter of the triangle, giving you a complete set of results from one simple input. View The Formulas To support your learning and professional work, the app shows the formulas used for each calculation. This helps you check your work and understand the core principles. HOW IT WORKS One Select the values you want to find, such as a side or an angle. Two Input the known measurements into the provided fields. Three Instantly receive your detailed solution including all sides, angles, area, and perimeter. Download Triangle Calculator Pythagoras today and get a powerful and easy to use geometry solver right in your pocket.

About

Triangle Calculator Plus

This app instantly solves any triangle problem with multiple solver modes and live visualization. It provides complete triangle properties, step-by-step solutions, and supports various units. Ideal for students, engineers, and professionals needing quick, accurate triangle calculations.

Highlights
  • Multiple solver modes (SSS, SAS, ASA, AAS, SSA, Right Triangle)
  • Live triangle visualization with real-time updates
  • Complete triangle properties (area, perimeter, circumradius, inradius)
  • Step-by-step solution breakdown
  • Unit support for various measurements
  • Tap to copy results
Features
Read full description

Triangle Calculator — Solve Any Triangle Instantly The most powerful triangle calculator on iPhone/iPad. Whether you're a student solving geometry homework, an engineer calculating structural angles, or a teacher demonstrating trigonometry — Triangle Calculator gives you every answer in seconds. 6 POWERFUL SOLVER MODES Tackle any triangle problem, no matter what values you have: SSS — solve from 3 sides using the Law of Cosines SAS — 2 sides and an included angle ASA — 2 angles and the side between them AAS — 2 angles and a non-included side SSA — the ambiguous case, with automatic detection of 0, 1, or 2 solutions Right Triangle — dedicated mode for right triangles using the Pythagorean theorem LIVE TRIANGLE VISUALIZATION Watch your triangle redraw in real time as you type. Animated sides, labeled angles, altitude lines, and vertex markers update instantly. Pinch to zoom for a closer look. COMPLETE TRIANGLE PROPERTIES Go beyond basic sides and angles. Every solution includes: • Area and perimeter • Circumradius R and Inradius r • All 3 medians, altitudes, and angle bisectors STEP-BY-STEP SOLUTIONS Toggle on step-by-step mode to see exactly how each answer was calculated — formulas, substitutions, and results. Perfect for checking your homework or understanding the math behind the answer. TAP TO COPY ANY RESULT Tap any calculated value to instantly copy it to your clipboard — great for pasting into reports, spreadsheets, or other apps. UNIT SUPPORT FOR EVERY FIELD Switch between mm, cm, m, inches, and feet. All results update automatically. Ideal for engineering, construction, architecture, and woodworking. BEAUTIFUL DARK MODE Fully supports iOS Light and Dark Mode with a clean, distraction-free interface. Perfect for: - High school and college geometry & trigonometry students - Engineers, architects, and surveyors - Construction and carpentry professionals - Teachers and tutors - Anyone who needs fast, accurate triangle math Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Triangle Calculator Pythagoras4 screens
Triangle Calculator Plus4 screens

Verdict

The call

The clearest difference is price: Triangle Calculator Pythagoras at Free against Triangle Calculator Plus's $3.99. Triangle Calculator Pythagoras also leads on update cadence (monthly vs every 23 months) and iOS requirement (15.0 vs 17.6). Triangle Calculator Plus's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 3). On 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

Triangle Calculator Pythagoras is free to download; Triangle Calculator Plus costs $3.99 up front. Triangle Calculator Pythagoras sells 3 in-app purchases, starting at $1.99 per 7 days. Triangle Calculator Plus asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Triangle Calculator Plus holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Triangle Calculator Pythagoras ships an update monthly, Triangle Calculator Plus every 23 months. The most recent releases landed on September 17, 2026 and September 25, 2026 respectively.

Scorecard7 real differences · 3 level
Triangle Calculator Pythagoras versus Triangle Calculator Plus: the parameters behind the verdict, then further details
ParameterTriangle Calculator PythagorasTriangle Calculator Plus
PriceFree — better$3.99
Rating4.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyMonthly — betterEvery 23 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size14 MB1 MB
Age rating4+4+
DeveloperMuhammed Samil DEMIRHeng Jia Liang

Customer experience

Triangle Calculator Pythagoras

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Triangle Calculator Plus

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Triangle Calculator Pythagoras

Subscriptions3
  • Weekly Premium3 Days trial$1.997 Days
  • Monthly Premium3 Days trial$4.991 Month
  • Premium Yearly7 Days trial$19.991 Year
None

Triangle Calculator Plus

No in-app purchases

Questions

Is Triangle Calculator Pythagoras free?
Triangle Calculator Pythagoras is free to download, with in-app purchases available.
Is Triangle Calculator Plus free?
Triangle Calculator Plus costs $3.99, with no in-app purchases.
Which has better reviews, Triangle Calculator Pythagoras or Triangle Calculator Plus?
Triangle Calculator Plus is rated higher. Triangle Calculator Pythagoras averages 4.0 out of 5 from 1 ratings, while Triangle Calculator Plus averages 5.0 from 1 ratings.
Do Triangle Calculator Pythagoras or Triangle Calculator Plus have ads?
Triangle Calculator Pythagoras shows ads; Triangle Calculator Plus does not.
Which is updated more often, Triangle Calculator Pythagoras or Triangle Calculator Plus?
Triangle Calculator Pythagoras ships an update monthly, and Triangle Calculator Plus every 23 months. Most recently, Triangle Calculator Pythagoras was updated on September 17, 2026 and Triangle Calculator Plus on September 25, 2026.

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