Comparison

Trig Solver vs EulerPad

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

Head to head
About

Trig Solver

Features
Read full description

Trigonify brings the core tools for learning trigonometry into one focused, visual workspace. Solve a triangle, explore the unit circle, graph a function, review formulas, and practice the ideas behind each answer—without creating an account or seeing ads. SOLVE WITH STEPS • Solve right triangles with SOHCAHTOA and the Pythagorean theorem • Find missing sides and angles with clear worked steps • Use inverse sine, cosine, and tangent with domain guidance • Switch between degrees, radians, gradians, and DMS • Save solutions and return to them later SEE HOW TRIG FITS TOGETHER • Drag around an interactive unit circle • View exact values, quadrants, and reference angles • Graph sine, cosine, and tangent with live controls for amplitude, period, phase, and vertical shift • Link a moving unit-circle point to its waveform in the phase-shift playground STUDY AND PRACTICE • Search a structured trigonometry formula reference • Favorite the identities you use most • Practice by topic, review mistakes, and track streaks and accuracy • Use Exam Mode to hide solvers and answers while keeping reference tools available BUILT FOR REAL STUDY • No account required • No advertising • Light, dark, high-contrast, and reduced-motion options • iPhone and iPad support • Local app settings, favorites, history, and practice progress Trigonify is an educational calculator and study aid. Check results before using them for exams, grading, engineering, construction, financial, or safety-critical work. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

EulerPad

Practice math problems using your own handwriting on screen or paper. Get AI-powered feedback on your steps, not just the final answer. Covers algebra, geometry, trigonometry, calculus, and more.

Highlights
  • Handwritten math problem solving
  • AI tutor feedback on steps
  • On-screen or paper practice
  • Supports Algebra, Geometry, Calculus
  • Custom problem input
  • Daily free practice allowance
Features
Read full description

EulerPad is a math practice workspace for iPhone and iPad. Pick a problem, work it out in your own handwriting, and tap Check — EulerPad's AI tutor reads your work and responds the way a good teacher would: what you got right, where a step went wrong, and what to try next. WRITE IT — ON SCREEN OR ON PAPER Math is learned by hand. EulerPad keeps the paper feel — a full-screen canvas, real ink, your own handwriting with Apple Pencil or your finger — and now works with actual paper too: solve it in your notebook, photograph it, and get the same read. Switch between the two whenever you like. Either way, you get the thing paper can't do on its own: feedback on your work itself, not just your final answer. FEEDBACK THAT TEACHES • Your whole solution is read, step by step — not just the answer • Feedback points to the exact step where things went off track • Mathematical notation is typeset cleanly, like a textbook • Still stuck? See a full worked solution A CURRICULUM THAT GROWS Practice Algebra, Geometry, Trigonometry, Calculus, and more, with new problems and topics arriving all the time — no app update required. YOUR OWN PROBLEMS Working from a textbook or worksheet? Bring the problem with you: type it in and solve it the same way, on screen or on paper, with the same feedback. FREE TO PRACTICE Every account includes a free daily practice allowance. EulerPad Premium, an auto-renewing subscription, raises it for heavier practice — manage or cancel anytime in Settings. PRIVATE BY DEFAULT No sign-up required — open the app and start solving. Sign in with Apple only when you want your work and credits to follow you to another device. Made for iPad and Apple Pencil. Now in your pocket, too. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://eulerpad-2d8dac.gitlab.io/privacy.html

Screenshots

Trig Solver4 screens
EulerPad4 screens

Verdict

The call

Trig Solver and EulerPad are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Trig Solver sells 3 in-app purchases, starting at $4.99 per 7 days and EulerPad sells 7 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Trig Solver versus EulerPad: the parameters behind the verdict, then further details
ParameterTrig SolverEulerPad
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequency—Every 2 days
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size54 MB28 MB
Age rating12+4+
DeveloperMobin AkhterSpencer Uresk

In-app purchases

3 purchases

Trig Solver

Subscriptions2
  • Trigonify Pro Weekly$4.997 Days
  • Trigonify Pro Yearly$34.991 Year
One-time1
  • Trigonify Pro Lifetime$69.99
7 purchases

EulerPad

Subscriptions2
  • EulerPad Premium$9.991 Month
  • EulerPad Premium$79.991 Year
One-time5
  • EulerPad Credits$1.99
  • Small Credit Bundle$3.99
  • Medium Credit Bundle$6.99
Show 2 more
  • Large Credit Bundle$11.99
  • Extra Large Credit Bundle$19.99

Questions

Is Trig Solver free?
Trig Solver is free to download, with in-app purchases available.
Is EulerPad free?
EulerPad is free to download, with in-app purchases available.
Do Trig Solver or EulerPad have ads?
Neither Trig Solver nor EulerPad shows ads.

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