Triangles in Geometry vs Rival Edge
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.
Rival Edge
Master strategic decision-making with real-life scenarios and Nobel Prize-winning game theory concepts. Learn practical rules for everyday dilemmas, track your progress, and gain an edge in negotiations and relationships.
- Interactive real-life scenarios
- 12 essential game theory concepts
- 20 practical daily rules
- Progress tracking with XP and ranks
- Payoff matrices for decision math
- Offline functionality
- Supports 6 languages
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Learn game theory through real-life scenarios. Rival Edge teaches you the science of strategic decision-making. INTERACTIVE SCENARIOS Face real dilemmas: salary negotiations, splitting restaurant bills, trust in relationships, group projects, and more. Every choice has consequences calculated through actual game theory models. 12 ESSENTIAL THEORIES Nash Equilibrium — why people get stuck in suboptimal situations Tit-for-Tat — the winning strategy in repeated interactions Prisoner's Dilemma — when cooperation beats selfishness Tragedy of the Commons — why shared resources disappear Ultimatum Game — the psychology of fairness And 7 more Nobel Prize-winning concepts 20 DAILY RULES Practical principles for everyday life: "Always name your number first", "Mirror behavior, not words", "Forgive fast, but remember". Each rule is backed by research. FEATURES 10+ scenarios with multiple outcomes Payoff matrices showing the math behind decisions Progress tracking with XP and ranks Beautiful dark interface 6 languages: English, Russian, French, German, Spanish, Italian No ads, no tracking, fully offline Whether you're negotiating a raise, dealing with a difficult neighbor, or deciding whether to trust someone — game theory gives you the edge.
Screenshots
Verdict
The clearest difference is update cadence: Rival Edge at every 6 months against Triangles in Geometry's every 27 months. Triangles in Geometry's advantage is price ($1.99 vs $3.99) and device support (4 vs 2). 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
Triangles in Geometry costs $1.99 and Rival Edge $3.99 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 Triangles in Geometry against 5.0 for Rival Edge. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Triangles in Geometry ships an update every 27 months, Rival Edge every 6 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.
| Parameter | Triangles in Geometry | Rival Edge |
|---|---|---|
| Price | $1.99 — better | $3.99 |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 27 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Gomathy Shankaran | Vladimir Rodzaevskiy |
Customer experience
Triangles in Geometry
Rival Edge
In-app purchases
Triangles in Geometry
No in-app purchases
Rival Edge
No in-app purchases
Questions
Is Triangles in Geometry free?
Is Rival Edge free?
Which has better reviews, Triangles in Geometry or Rival Edge?
Do Triangles in Geometry or Rival Edge have ads?
Which is updated more often, Triangles in Geometry or Rival Edge?
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