Trigonometry Formulas vs Trigonometry Hong Kong
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trigonometry Formulas
Access a comprehensive collection of trigonometry formulas, including ratios, functions, standard angle values, and identities. This app covers basic to advanced topics like inverse circular functions and properties of triangles, serving as a handy reference for students and enthusiasts.
- Trigonometric Ratios and Functions
- Basic Trigonometric Formulas
- Standard Angle Values
- Quadrant Rules of Signs
- Addition and Subtraction Formulas
- Inverse Circular Functions
- Properties of Triangles
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Contents :- 1.Trigonometric Ratios and Functions 2. Basic Trigonometric Formula 3. Values of Trigonometric Ratios for Standard Angles 4. Quadrant Rules Of Signs 5 .Range of Trigonometric Functions 6. Addition and Subtraction Formula 7. Double, Half and Triple angle Formula 8.Transformation Formula 9. Conditional Identities (when A+B+C = π) 10. Properties of Triangles 11.Inverse Circular Functions 12. Trigonometric Equations and General Values 13.Cosine law,Sine law,Projection law,Half angle Formula,Miscellaneous results 14. Domain and Ranges of Inverse Circular Functions,Important relations on inverse circular Functions
Trigonometry Hong Kong
This app provides a comprehensive guide to trigonometric formulas essential for Hong Kong university entrance exams. It covers a wide range of formulas, from basic sine and cosine to more advanced compound and subsidiary angle identities.
- Compound Angle Formulas
- Subsidiary Angle Formulas
- Double Angle Formulas
- Triple Angle Formulas
- Half Angle Formulas
- Product-To-Sum Formulas
- Sum-To-Product Formulas
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Trigonometric Compound Angle formulas used in the public examination for the entrance of the universities in Hong Kong. Contents :- 1. Sine Formula 2. Cosine Formula 3. Tangent Formula 4. Compound Angle Formula 5. Subsidiary Angle Formula 6. Double Angle Formula 7. Triple Angle Formula 8. Half Angle Formula 9. T Formula 10. Product-To- Sum Formula 11. Sum-To- Product Formula 12. Principal Value 13. General solution For Trigonometric Functions
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Verdict
The clearest difference is price: Trigonometry Hong Kong at Free against Trigonometry Formulas's $0.99. Trigonometry Formulas's advantage is update cadence (every 10 months vs every 34 months) and iOS requirement (13.0 vs 15.6). On rating, ratings volume, ads 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
Trigonometry Hong Kong is free to download; Trigonometry Formulas costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Trigonometry Formulas against 5.0 for Trigonometry Hong Kong. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Trigonometry Formulas ships an update every 10 months, Trigonometry Hong Kong every 34 months. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.
| Parameter | Trigonometry Formulas | Trigonometry Hong Kong |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 10 months — better | Every 34 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 27 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Ranjeet Kumar | See Yan Wong |
Customer experience
Trigonometry Formulas
Trigonometry Hong Kong
In-app purchases
Trigonometry Formulas
No in-app purchases
Trigonometry Hong Kong
No in-app purchases
Questions
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