Triangles in Geometry vs GM ChessPrep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triangles in Geometry
Learn the fundamentals of triangles, including types, centers, and area calculations. This app explains theorems and postulates with visual aids and includes review quizzes to test understanding.
- Triangle basics (Acute, Obtuse, Right Angle)
- Triangle centers (Centroid, Incenter, Orthocenter)
- Area calculations
- Triangle theorems and postulates explained
- Visual aids and images
- Review quizzes
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"Triangles in Geometry" is an educational app that describes the triangle basics - (Acute, Obtuse, Right Angle) and then progresses to explain various centers in a triangle - (Centroid, Incenter, Orthocenter) and Area. The app also summarizes and explains with images, triangles Theorems, and Postulates ( Proofs). Review questions (Quiz) at the end of the section has a few problems based on the triangle Theorems and Postulates.
GM ChessPrep
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It's time to take interactive chess lessons with problem-solving activities! Numerous exercises from different learning levels can be found in our courses. You can readily process the material thanks to the many interactive activity kinds. 1) Explanation Exercise: This will succinctly explain an idea to you. The most enjoyable and interesting approach to learn piece motions and captures is through the capture activity. 3. Puzzle Activity: From a given position, solve intriguing problems using various strategies. 4) MCQ Activity: Use multiple-choice questions from a quiz to assess your knowledge. 5) Play with the Computer: Develop your talents by using the computer to practice essential postures.
Screenshots
Verdict
The clearest difference is price: GM ChessPrep at Free against Triangles in Geometry's $1.99. On update cadence, ads, in-app purchases 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
GM ChessPrep is free to download; Triangles in Geometry costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Triangles in Geometry ships an update every 27 months, GM ChessPrep every 42 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.
| Parameter | Triangles in Geometry | GM ChessPrep |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 27 months — better | Every 42 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 14.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 12+ |
| Developer | Gomathy Shankaran | GMCHESSPREP LLC |
In-app purchases
Triangles in Geometry
No in-app purchases
GM ChessPrep
No in-app purchases
Questions
Is Triangles in Geometry free?
Is GM ChessPrep free?
Do Triangles in Geometry or GM ChessPrep have ads?
Which is updated more often, Triangles in Geometry or GM ChessPrep?
Other comparisons
