Comparison

Trigonometry Toolkit by CS vs Trig Solver

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

Head to head
About

Trigonometry Toolkit by CS

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Trigonometry Toolkit helps students learn faster by combining visual tools, calculators, and practice in one clean app. Core tools: • Interactive Unit Circle: Drag and explore angles, sin/cos/tan values, quadrants, reference angles, and exact values. • Right Triangle Solver: Solve sides, angles, area, and perimeter quickly. • General Triangle Solver (Premium): Solve SSS, SAS, ASA, AAS, and SSA (ambiguous case). • Degree/Radian Converter: Convert instantly in both directions. • Exact Value Finder: Check common exact trig values. • Trig Identities: Search and review identities with examples. • Graphing Tool: Plot trig functions and transformations. • Reference Angle, Coterminal, Arc Length & Sector Area calculators. Practice features: • Category-based quizzes with Easy / Medium / Hard levels. • Daily Challenge mode (5 mixed questions). • Performance insights: streak, best streak, attempts, and average accuracy. • Recent activity and continue-learning flow. Reference and study support: • Formula list with category filters and search. • Save favorites and review recent history. • Built-in reference pages for key identities and graph rules. Premium (one-time purchase): • Remove ads • General Triangle Solver • Advanced graphing options • Unlimited quizzes • Detailed explanations • Unlimited history and favorites • Access to premium identity sets and future premium updates Designed for learners, exam prep, and classroom support.

About

Trig Solver

Features
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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/

Screenshots

Trig Solver4 screens

Verdict

The call

The clearest difference is device support: Trig Solver at 2 against Trigonometry Toolkit by CS's —. Trig Solver also leads on iOS requirement (16.4 vs 26.0). On price and in-app purchases 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 Toolkit by CS sells 1 one-off in-app purchase and Trig Solver sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 3 level
Trigonometry Toolkit by CS versus Trig Solver: the parameters behind the verdict, then further details
ParameterTrigonometry Toolkit by CSTrig Solver
PriceFreeFree
Ads—No
In-app purchasesYesYes
Devices—iPhone, iPad — better
Requires iOS26.016.4 — better
Further details — not scored
Size10 MB54 MB
Age rating4+12+
DeveloperChatStick Company LimitedMobin Akhter

In-app purchases

1 purchases

Trigonometry Toolkit by CS

One-time1
  • Unlock All Features + Remove Ads$1.99
3 purchases

Trig Solver

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

Questions

Is Trigonometry Toolkit by CS free?
Trigonometry Toolkit by CS is free to download, with in-app purchases available.
Is Trig Solver free?
Trig Solver is free to download, with in-app purchases available.

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