Comparison

Wild Four vs Zero21 Card Game

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

Head to head
About

Wild Four

A card game where players discard cards by matching color or face value. Features special cards like Wild Four and Plus Two, with multiple gameplay variations. Offers multiplayer, single-player AI, events, and daily tasks for rewards.

Highlights
  • Color and face matching gameplay
  • Special cards (Wild Four, Skip, Reverse, Plus Two)
  • Three gameplay variations (Standard, Stacked, Multi Discard)
  • Multiplayer (online, private rooms, friend invites)
  • Single player against AI
  • Events, daily tasks, and map stages for rewards
  • Profile creation and cross-device syncing
Read full description

Play the color and face matching game where you're given 7 cards to start the game and then you need to discard them all to win by either matching the color or the face value. Game has 4 color cards (Red, Green, Yellow, Blue). Each color has 1 to 9 face cards. There are some special cards as well as bellow: WILD FOUR: This card forces the next player to draw 4 cards from the deck and they skip their turn. Player who plays this card gets to choose the color for the turn. SKIP: This card skips the next player turn. REVERSE: This card switches the direction of game play from Clock wise to Anti Clock wise and from Anti Clock wise to Clock wise direction. PLUS TWO: This card forces the next player to draw 2 cards from the deck and they skip their turn. WILD COLOR: This card can be played at any color and player gets to choose the color for the turn. Game offers 3 Variations of game play. STANDARD: Players can play only one card in their turn. STACKED: Players play one card in their turn but they can stack the PLUS TWO & WILD FOUR cards if previous player played them to avoid drawing more cards. This forces the next player to either STACK or draw total of stacked cards. MULTI DISCARD: Players can play any number of cards in one turn as long as they match the face or color of the cards. However WILD FOUR & WILD COLOR card ends the turn. **** FEATURES **** MULTI PLAYER Play against online players in Quick match, public rooms or in private rooms. Invite your friends using codes to play with them. SINGLE PLAYER Play against smart AI Bots. AI improves as you level up in the game. EVENTS Game offers three kinds of Events and having unique events in each kinds. There are total of 10 unique Events going on in the game. Compete in them to get awesome rewards. DAILY TASKS Each day 4 tasks are given to the player which needs to be completed in single day. Each task offers different reward according to its difficulty. On completion of all tasks, A huge Jackpot is rewarded. MAP There are 5 map locations in the game and each map location offers 7 unique stages. All stages rewards a unique rare game item which can not be purchased anywhere. BUNDLES Unlock different super most items from bundles which can not be obtained otherwise. These bundles are updated very frequently and items are superior to the legendary. SCRATCH CARDS Scratch different types of cards (Legendary, Golden & Silver) to get rare and legendary items. DAILY BONUS Get bonus each day you open the game. LUCKY SPINNING WHEEL Spin the wheel to test your luck to get rare and legendary items. Get a FREE spin each day. PROFILE Register your game account in game to create and save the profile. You can login with same account in multiple devices to resume your game. LEAGUES & BADGES A week long league is running in the game which awards the badges. Participate in the league and get minimum of 100 league points to get promoted to next rank league. Receive badges to showcase your skills. LEADERBOARDS Participate in Daily & Weekly leaderboards and compete against other players to get rewards according to your rank. CHAT Game offers live chatting with your friends. Invite your friends using codes and play with them or chat with them. EMOTICONS Use animated emotes in chatting while playing. COLLECTIBLES Collect different Avatars, Frames, Chat messages, Emoticons and Decks. All of them has different rarity. Common items are free and some are purchasable using game currency. The legendary items can only be obtained through Scratch cards. Some Special items are obtainable through Events and Some are obtainable through bundles only. SUPPORT You can contact the developers using Contact Panel from inside the game. Support is available 24/7. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Zero21 Card Game

This number puzzle game challenges you to keep your score between 0 and 21 by collecting cards. Utilize power-up cards and strategic choices to navigate diverse levels and daily challenges. It's a fun, relaxing way to train your brain.

Highlights
  • Keep score between 0 and 21
  • Collect number cards
  • Use power-up cards
  • Unlock new card collections
  • Daily challenges
  • Diverse card layouts
Features
Read full description

"ZERO21 CARD GAME Zero21 Card Game is a number games with solitaire card. It is fun, relax but helps to train your brain. ***HOW TO PLAY*** The game rule is simple: Try to stay between 0 and 21. - Collect the number card on the board - Choose the right one to keep the sum lower than 21 and greater than 0 - Use the power up cards to help you solve this math game ***FEATURES*** - PICK YOUR STYLE: Many unique stylish card collections for your choice to play to keep things fresh everyday. - AMAZE IN EVERY LEVEL: Diversity card layouts at each level let the game more interesting. - FINISH DAILY CHALLENGE to unlock new card collections. - Golden card keeps your current number at the golden one. - See the next number with forseen card. - Hold button help to keep the card for the next move. - Remove the unused card with Delete button. You should not miss this mathgame because it is TOTALLY FREE and help you BE SMARTER everyday!

Screenshots

Wild Four4 screens
Zero21 Card Game4 screens

Verdict

The call

The clearest difference is review sentiment: Wild Four at 100% against Zero21 Card Game's 0%. Wild Four also leads on rating (5.0 vs 4.0) and update cadence (every 2 months vs every 65 months). Zero21 Card Game's advantage is in-app purchases (none vs 15) and ratings volume (3 vs 1). On price, ads, device support and iOS requirement 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. Wild Four sells 15 in-app purchases, starting at $4.99 per month. Zero21 Card Game asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Wild Four holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 100% of Wild Four's written reviews are positive against 0% of Zero21 Card Game's.

UpkeepUpdate frequency

Wild Four ships an update every 2 months, Zero21 Card Game every 65 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
Wild Four versus Zero21 Card Game: the parameters behind the verdict, then further details
ParameterWild FourZero21 Card Game
PriceFreeFree
Rating5.0 (1 ratings) — better4.0 (3 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings13 — better
Update frequencyEvery 2 months — betterEvery 65 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size219 MB58 MB
Age rating4+4+
DeveloperDharmendra TomarLe Nhung

Customer experience

Wild Four

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Zero21 Card Game

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

15 purchases

Wild Four

Subscriptions1
  • VIP$4.991 Month
One-time14
  • 500 Coins$0.99
  • 100 Gems$0.99
  • 3,000 Coins$4.99
Show 11 more
  • 600 Gems$4.99
  • 70,000 Cash$9.99
  • 7,000 Coins$9.99
  • Remove Ads$9.99
  • 1500 Gems$9.99
  • 200,000 Cash$24.99
  • 20,000 Coins$24.99
  • 4000 Gems$24.99
  • 500,000 Cash$49.99
  • 50,000 Coins$49.99
  • 10000 Gems$49.99
None

Zero21 Card Game

No in-app purchases

Questions

Is Wild Four free?
Wild Four is free to download, with in-app purchases available.
Is Zero21 Card Game free?
Zero21 Card Game is free to download, with no in-app purchases.
Which has better reviews, Wild Four or Zero21 Card Game?
Wild Four is rated higher. Wild Four averages 5.0 out of 5 from 1 ratings, while Zero21 Card Game averages 4.0 from 3 ratings.
Do Wild Four or Zero21 Card Game have ads?
Both Wild Four and Zero21 Card Game show ads.
Which is updated more often, Wild Four or Zero21 Card Game?
Wild Four ships an update every 2 months, and Zero21 Card Game every 65 months. Most recently, Wild Four was updated on October 16, 2026 and Zero21 Card Game on October 14, 2026.

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