Comparison

Deco Deck vs Arithmetist

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

Head to head
About

Deco Deck

This logic puzzle challenges you to connect cards into groups of five, forming valid hands. Every card must be part of a hand to solve the puzzle, with each puzzle having a single unique solution. Daily free puzzles are available, with more accessible via subscription or a one-time purchase.

Highlights
  • Link cards into groups of five
  • Form valid card hands
  • Solve unique puzzles
  • Daily free puzzles
  • Subscription for more puzzles
  • Lifetime access option
Features
Read full description

Deco Deck is an original logic puzzle from the creator of Semantle.. Your goal is to link the cards on the board in connected groups of five, such that each group makes a valid "hand". To win, every card on the board must be part of a hand. Each puzzle has only one solution. There are two free puzzles every day. More puzzles are available by subscription. You can purchase an auto-renewing subscription through an In-App Purchase. The subscription is $4.99 per year. Or you can buy lifetime access for $9.99. • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • The subscription may not be cancelled during the active subscription period, but you turn off auto-renewal by visiting your iTunes Account Settings after purchase. • EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Arithmetist

Features
Read full description

"Arithmetist" is an exciting fast-paced calculation puzzle game designed to test your math skills and quick thinking! Puzzle Rules The rules are simple yet challenging. Draw a single line to create an equation that matches the specified "Goal" number to clear the level. You will use the following basic operations: Addition: 1 + 1 = 2 Subtraction: 3 - 1 = 2 Multiplication: 1 x 2 = 2 Modulus: 7 % 5 = 2 Equations are calculated from left to right, so you need to be mindful of the order of operations. For example: 1 + 2 x 3 = 9 Following these rules, your task is to create the optimal equation to reach the goal number. Score The scoring system is based on the level and the length of the equation you create. Even if the result is the same, longer equations will earn higher scores. This means you need to think creatively and strategically, making the game not just about calculations but also about solving puzzles. Levels The game has a maximum level of 20. Reaching level 20 requires advanced calculation skills and cool-headed decision-making. Each level gradually increases in difficulty, constantly providing a new challenge for the player. Test your math abilities and aim for the highest level! Challenging Gameplay "Arithmetist" offers simple yet deep gameplay. Compete for high scores and challenge your own personal best to experience continuous discovery and a sense of accomplishment. Playing "Arithmetist" is not only fun but also helps improve your calculation and problem-solving skills. Enjoy the game anytime, anywhere on your smartphone. Download now and start your challenge! Aim to become the ultimate calculation puzzle master!

Screenshots

Deco Deck4 screens
Arithmetist3 screens

Verdict

The call

The clearest difference is ads: Deco Deck at none against Arithmetist's shown. Arithmetist's advantage is update cadence (daily vs every 5 months) and iOS requirement (12.0 vs 14.0). 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. Deco Deck sells 1 one-off in-app purchase and Arithmetist sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Deco Deck ships an update every 5 months, Arithmetist daily. The most recent releases landed on October 12, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 6 level
Deco Deck versus Arithmetist: the parameters behind the verdict, then further details
ParameterDeco DeckArithmetist
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 monthsDaily — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size70 MB115 MB
Age rating4+4+
DeveloperDavid TurnerCode and DESIGN inc

In-app purchases

1 purchases

Deco Deck

One-time1
  • Eternal$9.99
1 purchases

Arithmetist

One-time1
  • No Ads$2.99

Questions

Is Deco Deck free?
Deco Deck is free to download, with in-app purchases available.
Is Arithmetist free?
Arithmetist is free to download, with in-app purchases available.
Do Deco Deck or Arithmetist have ads?
Arithmetist shows ads; Deco Deck does not.
Which is updated more often, Deco Deck or Arithmetist?
Deco Deck ships an update every 5 months, and Arithmetist daily. Most recently, Deco Deck was updated on October 12, 2026 and Arithmetist on October 27, 2026.

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