Comparison

Trigonometry Help vs Chippy Tools

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

Head to head
About

Trigonometry Help

This app helps you quickly solve for unknown angles and sides of right-angled triangles. It provides a workings view for understanding the math, a scale drawing of the triangle, and a reference for basic trigonometric formulas. You can input angles in various formats and choose your desired decimal precision.

Highlights
  • Solve right-angled triangles
  • Workings view for solutions
  • Scale drawing of solved triangle
  • Basic trig formulae reference
  • Multiple angle input formats
  • Customizable decimal places
Features
Read full description

Trig Help is a simple triangle calculator that enables you to quickly and easily find unknown angles & sides of any right-angled triangle. Features Include: - Accurately solve right-angled triangles - Workings view, so you can see the math behind the solutions (requires optional upgrade) - View a scale drawing of your solved triangle - View a handy set of basic trig formulae - Enter angles in radians, decimal degrees or degrees, minutes, seconds - Select your preferred number of decimal places What two App Store reviewers had to say about Trig Help: "I could never remember those simple formulas. I always had to dig out my text books from MANY YEARS ago to refresh my memory. THIS LITTLE APP IS A DELIGHT TO USE! I love it! Even my engineer friends are impressed. THANKS!" 5 Stars "Easy to use and accurate with high degree of precision. Would recommend to any toolmaker." 5 Stars Also available for OS X on the Mac App Store.

About

Chippy Tools

This app simplifies complex calculations for construction professionals. It offers a variety of tools for tasks like spacing, measurements, and material estimation, helping to reduce errors and save time on job sites. Available on iPhone and iPad, it aims to be an essential tool for tradespeople.

Highlights
  • Baluster spacing calculator
  • Flat run attached baluster calculator
  • Square calculator
  • Concrete calculator
  • Stair calculator
  • Supports millimeters, feet, and inches
Features
Read full description

Chippy Tools is the must-have calculator for carpenters and handy folks looking to simplify math on the job. Whether you're on your iPhone or iPad, Chippy Tools is for you. Its user-friendly design lets you focus on carpentry while the app handles the math. Perfect for architects, builders, carpenters, construction workers, contractors, designers, engineers, tradespeople, and woodworkers of all kinds, Chippy Tools speeds up common calculations with precision. Save time and cut costs by reducing site errors. WHAT IS A CHIPPY? In Australia, carpenters are often called Chippy. WHY CHIPPY TOOLS? Our mission at Chippy Tools is to redefine top-notch apps for carpenters. We aim to develop a sustainable business model, adding new calculations to keep saving you time and money. FEATURES • Baluster spacing calculator - Quickly calculate spacing for flat runs. • Flat run attached baluster calculator - Simple, fast calculations for attached balusters. • Supports millimeters, feet, and inches. PREMIUM FEATURES (Requires Subscription) • Square calculator - Ensure structures are perfectly square. • Concrete calculator - Calculate concrete needed for slabs and posts. • Dumpy level calculator - Find relative level from benchmarks. • Equal spacing calculator - Calculate even spacing effortlessly. • Gravel calculator - Determine gravel volume needed. • Pitch calculator - Calculate pitch with rise and run. • Raked wall calculator - Measure raked walls using height or pitch. • Running calculations - Enter start number and interval. • Soil calculator - Find soil volume for landscaping. • Stair calculator - Calculate going, stringer, and rise for stairs. • Triangle calculator - Solve triangle measurements with ease. FEEDBACK Want a new calculator? Email us at feedback@chippy.tools. NO ADS EVER We promise no ads in Chippy Tools. Enjoy the best experience for your purchase. SUPPORT Got questions or feedback? Contact us for free tech support at support@chippy.tools. If Chippy Tools aids you, please leave an App Store review to help others find it. Subscription Terms of Service: https://chippy.tools/terms/ Proudly made in Brisbane, Australia.

Screenshots

Trigonometry Help4 screens
Chippy Tools4 screens

Verdict

The call

The clearest difference is price: Chippy Tools at Free against Trigonometry Help's $1.99. Chippy Tools also leads on update cadence (every 8 days vs every 13 months). Trigonometry Help's advantage is review sentiment (91% vs 55%) and rating (4.7 vs 4.5). On ratings volume, ads, in-app purchases and monetization model 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

Chippy Tools is free to download; Trigonometry Help costs $1.99 up front. Trigonometry Help sells 3 one-off in-app purchases and Chippy Tools sells 9 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Trigonometry Help holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 481 and 907 respectively. Written reviews point the same way: 91% of Trigonometry Help's written reviews are positive against 55% of Chippy Tools's.

UpkeepUpdate frequency

Trigonometry Help ships an update every 13 months, Chippy Tools every 8 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard5 real differences · 5 level
Trigonometry Help versus Chippy Tools: the parameters behind the verdict, then further details
ParameterTrigonometry HelpChippy Tools
Price$1.99Free — better
Rating4.7 (481 ratings) — better4.5 (907 ratings)
Positive reviews91.0% of reviews — better54.8% of reviews
Number of ratings481907 — better
Update frequencyEvery 13 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better16.0
Further details — not scored
Size21 MB46 MB
Age rating+44+
DeveloperArmchair EngineeringPeth Pty Ltd

Customer experience

Trigonometry Help

All ratings477 ratings
Positive94.1%
Neutral2.3%
Negative3.6%
Written reviews144 reviews
Positive91.0%
Neutral2.1%
Negative6.9%

Chippy Tools

All ratings907 ratings
Positive88.5%
Neutral3.0%
Negative8.5%
Written reviews62 reviews
Positive54.8%
Neutral4.8%
Negative40.3%

User reviews

Trigonometry Help

From 481 App Store ratings

What we love

  • 🚀 Quick and easy to use
  • 👍 User-friendly interface
  • 🔧 Helpful for tradesmen and professionals
  • ⚙️ Accurate calculations
  • 🔍 Convenient for on-site use

Room to improve

  • 🔢 Limited to right-angled triangles only
  • 🔍 Lacks advanced trig functions
  • 🔀 No option to rotate/flip the triangle view

Chippy Tools

From 907 App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Quick and efficient
  • 💡 Useful construction tools
  • 🙌 Great for DIY projects

Room to improve

  • 🤔 Confusing interface
  • 💰 Expensive subscription
  • 🐛 Inaccurate calculations
  • 🔒 Difficult to cancel subscription

Bugs and requests

Trigonometry Help

Reported bugs

2 issues
  • Inconsistent performance on older devices
  • Occasional crashes or freezes

Requested features

3 requests
  • Support for irregular triangles
  • Ability to show step-by-step workings
  • Option to switch between degrees/minutes/seconds and decimal values

Chippy Tools

Reported bugs

2 issues
  • Square check feature not working
  • Measurements disappear after partial use

Requested features

4 requests
  • Add more construction-related calculators
  • Improve stair and rafter tools
  • Include material quantity estimations
  • Add support for metric and imperial units

In-app purchases

3 purchases

Trigonometry Help

One-time3
  • Trig Help Premium$0.99
  • Trig Help Premium$1.99
  • Trig Help Premium$3.99
9 purchases

Chippy Tools

Subscriptions8
  • Chippy Tools Pro - Weekly1 Month trial$2.997 Days
  • Chippy Tools Pro - Weekly3 Days trial$3.997 Days
  • Chippy Tools Pro - Quarterly3 Months trial$4.993 Months
Show 5 more
  • Chippy Tools Pro - Monthly$5.991 Month
  • Chippy Tools Pro - Monthly1 Month trial$5.991 Month
  • Chippy Tools Pro - Annual3 Days trial$19.991 Year
  • Chippy Tools Pro - Annual1 Year trial$19.991 Year
  • Chippy Tools Pro - Annual$19.991 Year
One-time1
  • One Time Purchase2 variants$85.00

Questions

Is Trigonometry Help free?
Trigonometry Help costs $1.99, and also offers in-app purchases.
Is Chippy Tools free?
Chippy Tools is free to download, with in-app purchases available.
Which has better reviews, Trigonometry Help or Chippy Tools?
Trigonometry Help is rated higher. Trigonometry Help averages 4.7 out of 5 from 481 ratings, while Chippy Tools averages 4.5 from 907 ratings.
Do Trigonometry Help or Chippy Tools have ads?
Neither Trigonometry Help nor Chippy Tools shows ads.
Which is updated more often, Trigonometry Help or Chippy Tools?
Trigonometry Help ships an update every 13 months, and Chippy Tools every 8 days. Most recently, Trigonometry Help was updated on November 6, 2026 and Chippy Tools on November 7, 2026.

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