Comparison

Rook vs Nertz JD

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

Head to head
About

Rook

Experience a strategic trick-taking card game with a unique deck and bidding system. Play with friends or AI, aiming to reach a target score by winning tricks and naming trump suits. Features color-blind friendly cards and customizable rules.

Highlights
  • Trick-taking gameplay
  • Unique card deck (5-14)
  • Bidding for trump suit
  • Color-blind friendly cards
  • Customizable rules
  • AI opponents
Features
Read full description

Rook is a popular trick-taking card game using a special card deck numbered from 5 to 14 (and optionally 1) in 4 suit colors, plus a Rook card. In this app, the Rook card is a castle chess piece and the cards are designed to be color-blind friendly. Dealing: Deal passes around table for each hand, to the left. Dealer deals 9 cards to each player, and 5 cards to the widow in the middle of the table. Bidding: Players bid for the right to name the trump suit. The player to the left of the dealer starts the bidding at 70 (or passes), and bidding proceeds to the left, usually in 5 point increments. A player that passes is out of the bidding for that hand. Widow, Naming Trump: The high bidder collects the 5 widow cards (which are shown to all players), names a trump suit for the hand, and discards 5 cards from her hand (not shown to the other players). The 5 discards can include point cards which will, depending on your settings, go to either the high bidder or the winner of the last trick. Tricks: The dealer (or the high bidder, you can change this) leads the first trick. Play proceeds to the left until all 4 players have played one card. Players follow suit unless they are out of that suit (or play the Rook card to win a trick with lots of points). If a player cannot follow suit, any card may be played. If there were no trump cards played on a trick, high card in the lead suit wins the trick. If trump cards were played on the trick, the highest trump card wins the trick. The trick winner pulls in the cards (adds them to his won tricks pile), and leads the next trick. The Rook card is the highest card of the trump suit. The ranking of cards from high to low is Rook-14-13-12-11-10-9-8-7-6-5. Hand results: Both teams count the points from their won tricks piles: Rook card is worth 20; 14 and 10 cards are worth 10 each; 5 cards are worth 5. The other cards count nothing. If the bidding team did not score enough points to cover its bid, its score decreases by the bid amount. Winning: First team to 300 points (or to be 300 points ahead) wins the game. A paid Rook Gold app with no ads is also available on the App Store.

About

Nertz JD

Experience a fast-paced, real-time multiplayer card game that combines elements of Speed and Solitaire. Compete against others to be the first to play all your cards and call out "Nertz". It's a thrilling competition of speed and skill.

Highlights
  • Real-time multiplayer
  • 4 player competition
  • Combines Speed and Solitaire
  • Fast-paced gameplay
  • Call out "Nertz" to win
  • Play to 100 points
Features
Read full description

4 Player Solitaire! Nertz is a crazy ninja fast, real-time, multiplayer card game like Solitaire. Nertz (Pounce) is a combination of the card games Speed and Solitaire. The goal of the game is to play all of your Nerts cards before the other player do. Game play is similar to Solitaire but all players share their Foundation piles and need to play ninja fast to win.   Overview Nertz can be played with any amount of people; this version plays with 4 players. Each player uses their own deck of cards in a solitaire–style competition that requires speed and skill. The object of each hand is to try to be the first player to call out “Nertz” by getting rid of their thirteen-card Nertz pile. A game of Nertz is played to a score of 100. After you play Nertz, multiplayer card games like blackjack, solitaire, or poker will feel slow. Nertz is known by a number of different names: Hell, Nerts, Pounce, Canfield, Peanuts, Blitz, Ligretto, and Racing Demon

Screenshots

Rook4 screens
Nertz JD4 screens

Verdict

The call

The clearest difference is in-app purchases: Rook at none against Nertz JD's 1. Rook also leads on update cadence (every 2 months vs every 7 months). Nertz JD's advantage is review sentiment (74% vs 62%). On price, rating, ratings volume and ads 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. Nertz JD sells 1 one-off in-app purchase. Rook asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Rook against 4.7 for Nertz JD. Both are backed by a comparable volume of ratings — 6.9K and 3K respectively. Written reviews are what separate them: 62% of Rook's written reviews are positive against 74% of Nertz JD's.

UpkeepUpdate frequency

Rook ships an update every 2 months, Nertz JD every 7 months. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
Rook versus Nertz JD: the parameters behind the verdict, then further details
ParameterRookNertz JD
PriceFreeFree
Rating4.8 (6.9K ratings) — better4.7 (3K ratings)
Positive reviews61.6% of reviews73.6% of reviews — better
Number of ratings6.9K — better3K
Update frequencyEvery 2 months — betterEvery 7 months
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size32 MB83 MB
Age rating4+4+
Developerfishdog.netJD SOFTWARE LLC

Customer experience

Rook

All ratings6,895 ratings
Positive95.8%
Neutral2.5%
Negative1.7%
Written reviews112 reviews
Positive61.6%
Neutral13.4%
Negative25.0%

Nertz JD

All ratings3,010 ratings
Positive95.3%
Neutral2.9%
Negative1.8%
Written reviews125 reviews
Positive73.6%
Neutral13.6%
Negative12.8%

User reviews

Rook

From 6.9K App Store ratings

What we love

  • 👍 Fun and enjoyable game
  • 👍 Challenging and makes the mind work
  • 👍 Brings back childhood memories
  • 👍 Great implementation of Rook game

Room to improve

  • 🐛 AI partner makes poor decisions and gets team set
  • 🐛 Unfair distribution of cards favoring the opponent team
  • 🐛 Opponents can renege and play off-suit trumps
  • 🐛 Frustrating bidding by AI partner

Nertz JD

From 3K App Store ratings

What we love

  • 🚀 Fast gameplay
  • 👍 Simple and fun
  • 🕹️ Addictive and engaging
  • 💯 Great way to practice the game
  • 🕰️ Good for passing time

Room to improve

  • 🐛 Touch sensitivity issues
  • 🤖 Unfair AI behavior
  • 🔇 Lack of sound effects
  • 🚫 Inability to play with friends
  • 📢 Annoying ads

Bugs and requests

Rook

Reported bugs

4 issues
  • AI partner plays trumps incorrectly
  • Scoring calculator issues and negative scores
  • Inability to skip the rest of the hand after outcome is decided
  • Irritating background music that cannot be turned off

Requested features

5 requests
  • Online multiplayer mode to play with friends
  • More customization options for game rules
  • Ability to play with full deck (2-14) and 4-card kitty
  • Option to start bidding lower
  • Ability to 'shoot the moon'

Nertz JD

Reported bugs

4 issues
  • Game getting stuck in endless loop
  • Cards not moving or getting stuck
  • Frequent crashes or app not loading
  • Issues with latest iOS update

Requested features

5 requests
  • Multiplayer mode to play with friends
  • Option to shuffle deck when needed
  • Customizable settings (e.g., number of players)
  • Pause/resume functionality
  • Detailed statistics and leaderboards

In-app purchases

None

Rook

No in-app purchases

1 purchases

Nertz JD

One-time1
  • Remove Ads$9.99

Questions

Is Rook free?
Rook is free to download, with no in-app purchases.
Is Nertz JD free?
Nertz JD is free to download, with in-app purchases available.
Which has better reviews, Rook or Nertz JD?
Rook is rated higher. Rook averages 4.8 out of 5 from 6.9K ratings, while Nertz JD averages 4.7 from 3K ratings.
Do Rook or Nertz JD have ads?
Both Rook and Nertz JD show ads.
Which is updated more often, Rook or Nertz JD?
Rook ships an update every 2 months, and Nertz JD every 7 months. Most recently, Rook was updated on September 25, 2026 and Nertz JD on September 24, 2026.

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