Comparison

Rival Edge vs Predicate Logic Foundations

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

Head to head
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.

About

Predicate Logic Foundations

Features
Read full description

Predicate Logic Foundations is an independent study app for learners who want structured practice in formal reasoning, quantifiers, inference, models, and proofs. Built for beginners, students, self-learners, and anyone reviewing predicate logic concepts, the app turns 160 questions into focused daily practice across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. - FSRS spaced-repetition intervals to review at the right time - Weak-point heatmap to spot topics that need attention - Daily challenge for consistent progress - Mock exams for timed review - Explanations for every question - Offline practice with no login required Practice offline, no login required. Your study flow stays simple and private. Independent study app for Predicate Logic Foundations practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.

Screenshots

Rival Edge4 screens
Predicate Logic Foundations4 screens

Verdict

The call

The clearest difference is price: Predicate Logic Foundations at Free against Rival Edge's $3.99. Predicate Logic Foundations also leads on iOS requirement (15.1 vs 26.0). On 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

CostPrice · In-app purchases · Ads · Monetization

Predicate Logic Foundations is free to download; Rival Edge costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 7 level
Rival Edge versus Predicate Logic Foundations: the parameters behind the verdict, then further details
ParameterRival EdgePredicate Logic Foundations
Price$3.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 months—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size7 MB38 MB
Age rating4+4+
DeveloperVladimir RodzaevskiyAFTW LLC

In-app purchases

None

Rival Edge

No in-app purchases

None

Predicate Logic Foundations

No in-app purchases

Questions

Is Rival Edge free?
Rival Edge costs $3.99, with no in-app purchases.
Is Predicate Logic Foundations free?
Predicate Logic Foundations is free to download, with no in-app purchases.
Do Rival Edge or Predicate Logic Foundations have ads?
Neither Rival Edge nor Predicate Logic Foundations shows ads.

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