Comparison

Triangles in Geometry vs Rival Edge

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

Head to head
About

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.

Highlights
  • Triangle basics (Acute, Obtuse, Right Angle)
  • Triangle centers (Centroid, Incenter, Orthocenter)
  • Area calculations
  • Triangle theorems and postulates explained
  • Visual aids and images
  • Review quizzes
Features
Read full description

"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.

About

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.

Highlights
  • 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
Features
Read full description

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

Triangles in Geometry4 screens
Rival Edge4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 5 level
Triangles in Geometry versus Rival Edge: the parameters behind the verdict, then further details
ParameterTriangles in GeometryRival Edge
Price$1.99 — better$3.99
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 27 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS14.1 — better26.0
Further details — not scored
Size6 MB7 MB
Age rating4+4+
DeveloperGomathy ShankaranVladimir Rodzaevskiy

Customer experience

Triangles in Geometry

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Rival Edge

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Triangles in Geometry

No in-app purchases

None

Rival Edge

No in-app purchases

Questions

Is Triangles in Geometry free?
Triangles in Geometry costs $1.99, with no in-app purchases.
Is Rival Edge free?
Rival Edge costs $3.99, with no in-app purchases.
Which has better reviews, Triangles in Geometry or Rival Edge?
Triangles in Geometry and Rival Edge are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Triangles in Geometry or Rival Edge have ads?
Neither Triangles in Geometry nor Rival Edge shows ads.
Which is updated more often, Triangles in Geometry or Rival Edge?
Triangles in Geometry ships an update every 27 months, and Rival Edge every 6 months. Most recently, Triangles in Geometry was updated on October 8, 2026 and Rival Edge on October 4, 2026.

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