Comparison

Thirty One | 31 | Scat | Blitz vs StackUp Card Game

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

Head to head
About

Thirty One | 31 | Scat | Blitz

A fun and fast-paced online multiplayer card game where players aim to be the first to reach 31 points. Enjoy quick rounds, strategic card swapping, and competitive play against friends or AI.

Highlights
  • Online multiplayer
  • Public and private game rooms
  • Chat with players
  • Offline training mode
  • Cross-platform play
  • World ranking
Features
Read full description

Thirty-One, also known as Hosn Obe, Big Tonka, Nickel Nock, Blitz, Clinker, Klinker, Skat, Cad, Whammy, Skedaddle, Snip Snap Snoop, Schnautz or Schnitzel. Many names for a game with very simple rules that guarantees lots of fun for young and old. Be the first to reach 31 points! - Online Multiplayer Game - Public and Private Game-Rooms - Chat with other players - Offline Training Mode - Optimized for phones and tablets - Cross-platform - Short games: ideal as a brief distraction and for casual gamers - Play against the computer or against up to three friends in multiplayer mode - Quick to learn, but still tactically challenging! - Strategically swap cards to reach your goal - Authentic, aesthetic design - Intuitive controls - Choosable suits: French and German - World ranking Game rules: There are between two and four players and 32 cards. Every player always has a hand of three cards and one to three lives indicated by matchsticks. Three more cards are placed face-up in the center. Whoever first reaches 31 points wins the round. If no-one reaches 31 points, the player with the lowest point score loses a life. You get points for cards of the same suit: Rank cards are worth the same as their number (7, 8, 9, 10). Face cards are worth 10 and aces are worth 11 points. Another special card combination comprises three cards of equal points value - those make up 31½ You can do one of four possible actions each round: - Exchange one of your cards with one from the center - Swap your entire hand with the three cards in the center - Pass, if you don't want to make any card changes - Knock, if to indicate the last round once you think that you will not be the player with the lowest hand-score. If you are the first to draw at the start of the round, you can chose to put your hand in the middle and get another hand from the deck, or put three new cards from the deck in the middle of the table. The player with the lowest amount of points loses a round. Once all matchsticks are gone (burnt), the player is considered to “swim” - this means they can continue to play but losing one more round finally means “drowning” and losing the game. However, you still have a chance of winning even while swimming! Whichever player is left at the end, wins. --- Further information about our terms of service as well as our privacy policy can be found on our homepage: https://hosnobe.com/dse_en.html

About

StackUp Card Game

Features
Read full description

StackUp is a head-to-head card race: be the first to empty your stock pile by playing runs onto four shared build piles. Wilds keep every turn alive, your discard piles set traps for later, and one greedy move can hand the match to your opponent. PLAY YOUR WAY • Challenge a friend online — invite a Game Center friend or share an invite link, and the match is on. • Play solo against the bot to learn the ropes or sharpen your endgame. • Pause an online match and pick it up later — it resumes exactly where you left off, for both players. MAKE IT YOURS • Tune the rules before each match: stock pile size and wild count. • Every finished match is saved to your history, and your lifetime stats follow you across devices. FAIR AND SIMPLE • Three free matches every day, plus the option to watch an ad for an extra one. • A single one-time purchase unlocks unlimited play forever. No subscriptions, no coins, no energy meters. • No analytics or tracking SDKs — crash reports only, so bugs get fixed. Full privacy policy at stackupcardgame.com/privacy. HOW IT PLAYS Each turn you draw up to a hand of five, then play cards from your hand, your discard piles, or your stock onto build piles that climb from 1 to 12. Empty your hand and you keep playing; end your turn by discarding. The first player to clear their stock pile wins. Easy to learn in one match, hard to put down after ten. Questions or trouble? stackupcardgame.com/support

Screenshots

Thirty One | 31 | Scat | Blitz4 screens
StackUp Card Game4 screens

Verdict

The call

The clearest difference is ads: StackUp Card Game at none against Thirty One | 31 | Scat | Blitz's shown. StackUp Card Game also leads on update cadence (every 4 days vs every 4 weeks). On price, in-app purchases, 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. Thirty One | 31 | Scat | Blitz sells 10 one-off in-app purchases and StackUp Card Game sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Thirty One | 31 | Scat | Blitz ships an update every 4 weeks, StackUp Card Game every 4 days. The most recent releases landed on October 26, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 8 level
Thirty One | 31 | Scat | Blitz versus StackUp Card Game: the parameters behind the verdict, then further details
ParameterThirty One | 31 | Scat | BlitzStackUp Card Game
PriceFreeFree
Rating4.8 (319 ratings) — better—
Positive reviews56.8% of reviews—
Number of ratings319 — better—
Update frequencyEvery 4 weeksEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1615.0 — better
Further details — not scored
Size185 MB202 MB
Age rating12+12+
DeveloperDonkeyCat GmbHNick Hall

Bugs and requests

Thirty One | 31 | Scat | Blitz

Reported bugs

23 issues
  • Ads won't close
  • App freezes
  • App crashes
  • App won't open
  • Game disconnects
Show 18 more
  • Sync errors
  • Loading issues
  • Screen shrinks
  • Settings reset
  • Ads are too loud
  • Fake wins
  • Incorrect game logic
  • Login issues
  • Data connection errors
  • Game freezes after privacy policy decline
  • Frequent disconnections
  • App not starting after update
  • Constant interruptions
  • Credits lost due to crashes
  • Unfair card distribution
  • Game lag
  • Chat blocked
  • Feedback button missing

Requested features

7 requests
  • Option to buy ad-free game
  • More time to view scores
  • Optional 'Next Hand' button
  • Tutorial for new players
  • Ability to switch all cards
Show 2 more
  • Chat and emoji toggle
  • Add friends feature

StackUp Card Game

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Thirty One | 31 | Scat | Blitz

One-time10
  • 30 days Ad Free$2.99
  • Small Credits Package$2.99
  • Challenge Ticket$2.99
Show 7 more
  • Challenge Bonus Repair$3.99
  • Medium Credits Package$8.99
  • Large Credits Package$14.99
  • One year Ad Free$24.99
  • Large Promotion Package$34.99
  • XL Credits Package$34.99
  • Mega Promotion Pack$89.99
2 purchases

StackUp Card Game

One-time2
  • NurseryTracks$0.99
  • StackUp Pro$3.99

Questions

Is Thirty One | 31 | Scat | Blitz free?
Thirty One | 31 | Scat | Blitz is free to download, with in-app purchases available.
Is StackUp Card Game free?
StackUp Card Game is free to download, with in-app purchases available.
Do Thirty One | 31 | Scat | Blitz or StackUp Card Game have ads?
Thirty One | 31 | Scat | Blitz shows ads; StackUp Card Game does not.
Which is updated more often, Thirty One | 31 | Scat | Blitz or StackUp Card Game?
Thirty One | 31 | Scat | Blitz ships an update every 4 weeks, and StackUp Card Game every 4 days. Most recently, Thirty One | 31 | Scat | Blitz was updated on October 26, 2026 and StackUp Card Game on October 14, 2026.

Other comparisons