Comparison

First grade Math 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

First grade Math

Features
Read full description

Boost your child's subtraction skills with First Grade Math – Subtraction! This engaging app features 5 fun mini-games with adaptive difficulty and natural handwriting input for an intuitive learning experience. Choose from two modes – Math Trainer to practice at your own pace and Math mini games for an exciting, game-based challenge. Practice essential skills including: Subtraction facts - numbers up to 10 Subtraction facts - numbers up to 18 Subtraction facts - numbers up to 20 Subtract multiples of 10 Subtract a multiple of ten Relate addition and subtraction Subtract one-digit number from two-digit number Subtract two two-digit numbers Download First Grade Math – Subtraction today and turn math practice into a fun, rewarding adventure!

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

First grade Math4 screens
Rival Edge4 screens

Verdict

The call

The clearest difference is update cadence: Rival Edge at every 6 months against First grade Math's every 28 months. First grade Math's advantage is price ($2.99 vs $3.99) and iOS requirement (12.0 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

First grade Math costs $2.99 and Rival Edge $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

First grade Math ships an update every 28 months, Rival Edge every 6 months. The most recent releases landed on September 8, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 6 level
First grade Math versus Rival Edge: the parameters behind the verdict, then further details
ParameterFirst grade MathRival Edge
Price$2.99 — better$3.99
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 28 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.0
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperSergey MaluginVladimir Rodzaevskiy

In-app purchases

None

First grade Math

No in-app purchases

None

Rival Edge

No in-app purchases

Questions

Is First grade Math free?
First grade Math costs $2.99, with no in-app purchases.
Is Rival Edge free?
Rival Edge costs $3.99, with no in-app purchases.
Do First grade Math or Rival Edge have ads?
Neither First grade Math nor Rival Edge shows ads.
Which is updated more often, First grade Math or Rival Edge?
First grade Math ships an update every 28 months, and Rival Edge every 6 months. Most recently, First grade Math was updated on September 8, 2026 and Rival Edge on September 21, 2026.

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