Comparison

Trigonometry Help Lite vs Trigonometry(Math Drills)

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

Head to head
About

Trigonometry Help Lite

This app quickly calculates unknown angles and sides of right-angled triangles. It offers a workings view for detailed solutions, scale drawings, and a formula reference. Input angles in various formats and customize decimal precision.

Highlights
  • Solve right-angled triangles
  • View detailed math workings
  • 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 macOS on the Mac App Store.

About

Trigonometry(Math Drills)

Master trigonometry concepts offline with this educational app. It covers essential topics like the Pythagorean theorem, right triangles, special angles, and shape measurements. Challenge yourself to improve your rank and test your knowledge.

Highlights
  • Offline learning
  • Pythagorean theorem
  • Right triangle trigonometry
  • Coordinate trigonometry
  • Special angles
  • Shape measurements
  • Challenge Mode for ranking
Features
Read full description

You can learn trigonometry offline. For example, Pythagorean theorem, Trigonometry(Right triangle), Trigonometry(Coordinate), Special angle, Relations for trigonometry, Measurement of Shapes.  Score high in Challenge Mode to improve your rank!!

Screenshots

Trigonometry Help Lite4 screens
Trigonometry(Math Drills)4 screens

Verdict

The call

The clearest difference is in-app purchases: Trigonometry(Math Drills) at none against Trigonometry Help Lite's 3. On price, update cadence, 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. Trigonometry Help Lite sells 3 one-off in-app purchases. Trigonometry(Math Drills) asks for nothing beyond the download.

UpkeepUpdate frequency

Trigonometry Help Lite ships an update every 6 weeks, Trigonometry(Math Drills) monthly. The most recent releases landed on September 26, 2026 and August 4, 2026 respectively.

Scorecard2 real differences · 8 level
Trigonometry Help Lite versus Trigonometry(Math Drills): the parameters behind the verdict, then further details
ParameterTrigonometry Help LiteTrigonometry(Math Drills)
PriceFreeFree
Rating4.7 (768 ratings) — better—
Positive reviews87.5% of reviews—
Number of ratings768 — better—
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size17 MB28 MB
Age rating4+4+
DeveloperArmchair Engineering郷 田村

Customer experience

Trigonometry Help Lite

All ratings768 ratings
Positive92.6%
Neutral3.0%
Negative4.4%
Written reviews16 reviews
Positive87.5%
Neutral6.3%
Negative6.3%

Trigonometry(Math Drills)

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

Bugs and requests

Trigonometry Help Lite

Reported bugs

1 issue
  • Incorrect calculation results in some cases

Requested features

4 requests
  • Better visual representation of triangles
  • Clearer explanation of premium features
  • Higher default decimal place precision
  • More detailed feature descriptions for paid tiers

Trigonometry(Math Drills)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Trigonometry Help Lite

One-time3
  • Trig Help Premium$2.99
  • Trig Help Premium$3.99
  • Trig Help Premium$5.99
None

Trigonometry(Math Drills)

No in-app purchases

Questions

Is Trigonometry Help Lite free?
Trigonometry Help Lite is free to download, with in-app purchases available.
Is Trigonometry(Math Drills) free?
Trigonometry(Math Drills) is free to download, with no in-app purchases.
Do Trigonometry Help Lite or Trigonometry(Math Drills) have ads?
Neither Trigonometry Help Lite nor Trigonometry(Math Drills) shows ads.
Which is updated more often, Trigonometry Help Lite or Trigonometry(Math Drills)?
Trigonometry Help Lite ships an update every 6 weeks, and Trigonometry(Math Drills) monthly. Most recently, Trigonometry Help Lite was updated on September 26, 2026 and Trigonometry(Math Drills) on August 4, 2026.

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