Comparison

Crazy 8s vs River Duel

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

Head to head
About

Crazy 8s

Experience a fast-paced card game against three AI opponents. Match cards by number, letter, or color, or use an 8 card to change the suit. Explore additional rules for varied gameplay.

Highlights
  • Play against 3 computer opponents
  • Match number, letter, or color
  • Use 8 cards to switch colors
  • Play with Mau Mau rules
  • Includes special cards (Lose a Turn, Take a Card, Switchback)
Features
Read full description

This card game is crazy fast and crazy fun. Play Crazy 8s against 3 computer opponents. Match number, letter, or color or play an 8 card to switch colors. For more crazy cards, play the Mau Mau rules and add Lose a Turn, Take a Card, and Switchback cards to the deck.

About

River Duel

Features
Read full description

Welcome to River Duel, the definitive 1v1 strategy card game designed for competitive minds. Forget luck—this is a battle of wits, timing, and tactical supremacy. THE GAME Face off against opponents in a fast-paced duel where every decision counts. You start with two secret cards and must combine them with five shared community cards to form the strongest combination. Will you play aggressively to pressure your rival, or defend your resources and wait for the perfect moment to strike? PURE STRATEGY River Duel transforms classic card mechanics into a pure tactical battle. Manage your "Stack" wisely. Decide when to Pass, when to Cover, and when to Increase the pressure. Reading your opponent's moves is just as important as the cards you hold. KEY FEATURES: • Online Multiplayer: Challenge players worldwide using Game Center matchmaking. Climb the leaderboards and prove your skill. • Local Wireless Play: Play face-to-face with a friend nearby using Bluetooth/Wi-Fi. No internet required! • Fair Play: No pay-to-win mechanics. Victory is determined solely by your ability to analyze the board and outplay the challenger. • Customizable Experience: Adjust game speed, starting resources, and level duration to create your perfect match setup. HOW TO PLAY: 1. Round 1: Receive your two private cards and assess your strategy. 2. The Reveal: Watch as shared community cards are revealed across the subsequent Rounds. 3. The Tactics: Choose your move. Knock to stay safe, Cover to match the opponent, or Increase to challenge for the round's score. 4. Showdown: Reveal your hand. The strongest combination takes the victory! Are you ready to enter the arena? Download River Duel today and show the world who the true card master is.

Screenshots

Crazy 8s4 screens
River Duel4 screens

Verdict

The call

The clearest difference is ads: River Duel at none against Crazy 8s's shown. Crazy 8s's advantage is iOS requirement (12.0 vs 26.2). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
Crazy 8s versus River Duel: the parameters behind the verdict, then further details
ParameterCrazy 8sRiver Duel
PriceFreeFree
Rating4.7 (387 ratings) — better—
Positive reviews63.2% of reviews—
Number of ratings387 — better—
Update frequencyEvery 2 months—
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.2
Further details — not scored
Size18 MB17 MB
Age rating4+4+
Developerfishdog.netVINCENZO CARAVELLO

Bugs and requests

Crazy 8s

Reported bugs

3 issues
  • Game doesn't reset properly after winning
  • Incorrect card behavior (e.g. 8s as first card)
  • Difficulty distinguishing card colors

Requested features

4 requests
  • Adjustable game speed
  • Manual card selection
  • Multiplayer support
  • Scoring and statistics

River Duel

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Crazy 8s

No in-app purchases

None

River Duel

No in-app purchases

Questions

Is Crazy 8s free?
Crazy 8s is free to download, with no in-app purchases.
Is River Duel free?
River Duel is free to download, with no in-app purchases.
Do Crazy 8s or River Duel have ads?
Crazy 8s shows ads; River Duel does not.

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