Comparison

Triangle Calculator vs HPU

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

Head to head
About

Triangle Calculator

This geometry tool simplifies trigonometry and triangle calculations. It provides quick and accurate results for various measurements, including angles, sides, area, and advanced geometric properties. Ideal for students, professionals, and anyone needing precise calculations.

Highlights
  • Triangle angle calculation
  • Side length and hypotenuse calculation
  • Area and perimeter calculation
  • Advanced geometry calculations
  • User-friendly interface
  • Accurate results
Features
Read full description

Solve triangles, angles, sides, and geometry calculations quickly with Triangle Calculator. Whether you need to find a missing side, calculate an angle, solve a right triangle, or work with arcs, chords, tapers, and PCD measurements, the app gives you the tools you need in one simple place. Just enter the values you know and get accurate results instantly. KEY FEATURES • Triangle Calculator Calculate missing sides, angles, area, perimeter, and other triangle values. • Angle & Side Solver Enter known measurements and quickly find unknown angles or side lengths. • Trigonometry Calculator Work with common trigonometric calculations without having to solve formulas manually. • Hypotenuse Calculator Quickly calculate the hypotenuse and other sides of a right triangle. • Arc & Chord Calculator Calculate arc length, chord length, radius, sector values, and related measurements. • Taper Calculator Find taper angles and measurements for design, engineering, machining, and workshop calculations. • PCD Calculator Calculate pitch circle diameter and related measurements quickly. • Area & Perimeter Calculate useful geometry measurements for different shapes and applications. SIMPLE AND FAST Designed to make geometry and trigonometry calculations easier. Enter your known values, choose the calculation you need, and get clear results without complicated steps. USEFUL FOR • Students and teachers • Engineers and designers • Machinists and workshop professionals • Construction and fabrication work • DIY projects • Everyday geometry calculations From simple triangle calculations to more advanced arc, chord, taper, and PCD measurements, Triangle Calculator helps you solve calculations faster and with less effort. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://chief-cheque-627.notion.site/Privacy-Policy-23e6adfdb3748140a9e5f78e9ce25995

About

HPU

This app provides fluid power engineers with essential formulas and calculators in a retro CRT terminal interface. It offers tools for cylinders, pumps, motors, vehicle drive sizing, fluids, and thermal calculations, with unit conversion and formula references. It works offline and requires no account.

Highlights
  • 21 live calculators for fluid power engineering
  • US and metric unit switching
  • Cylinder, pump, and motor calculations
  • Vehicle drive sizing worksheet
  • Fluid and thermal calculations
  • Unit converter and formula reference
  • Offline functionality
Features
Read full description

THE FLUID POWER TERMINAL. HPU-9000 packs the formulas fluid power engineers actually use into a phosphor-green CRT terminal — 21 live calculators, with every input and output switchable between US and metric units. CYLINDERS — bore/annulus area, push & pull force, stroke speed and time, return-line flow intensification, cylinder power, tube sizing with velocity guidance, air cylinder consumption. PUMPS & MOTORS — pump flow, hydraulic power and drive power required, motor torque and speed (theoretical vs. actual), torque⇄power, efficiency. VEHICLE DRIVE SIZING — a guided hydrostatic-drive worksheet: rolling and grade resistance, tractive effort, wheel and motor torque, traction check that warns before your wheels spin, motor RPM. Save machines by name and reload them at the bench. FLUIDS & THERMAL — oil volume, compressibility, fluid weight, SUS⇄cSt viscosity, reservoir heating, heat load vs. cooling balance, pump bearing life. PLUS — a full unit converter and the complete formula reference. Engineering-grade: every formula is computed from exact physical constants, not rounded shop approximations, and verified against an automated test suite. Green or amber phosphor. Scanlines optional. No account, no ads, works offline — like a good terminal should.

Screenshots

Triangle Calculator4 screens
HPU4 screens

Verdict

The call

The clearest difference is rating: HPU at 5.0 against Triangle Calculator's 3.7. HPU also leads on in-app purchases (none vs 2). Triangle Calculator's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.0). On price, ratings volume and ads 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. Triangle Calculator sells 2 in-app purchases, starting at $0.99 per month. HPU asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

HPU holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

Scorecard5 real differences · 5 level
Triangle Calculator versus HPU: the parameters behind the verdict, then further details
ParameterTriangle CalculatorHPU
PriceFreeFree
Rating3.7 (3 ratings)5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings33
Update frequencyEvery 4 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better18.0
Further details — not scored
Size15 MB2 MB
Age rating4+4+
DeveloperVaghani KeyurLOBOZ LLC

Customer experience

Triangle Calculator

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

HPU

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Triangle Calculator

Subscriptions2
  • Monthly Premium$0.991 Month
  • Yearly Premium$2.991 Year
None

HPU

No in-app purchases

Questions

Is Triangle Calculator free?
Triangle Calculator is free to download, with in-app purchases available.
Is HPU free?
HPU is free to download, with no in-app purchases.
Which has better reviews, Triangle Calculator or HPU?
HPU is rated higher. Triangle Calculator averages 3.7 out of 5 from 3 ratings, while HPU averages 5.0 from 3 ratings.
Do Triangle Calculator or HPU have ads?
Neither Triangle Calculator nor HPU shows ads.

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