Comparison

Concentration Sushi vs Corporate Slave Solitaire

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

Head to head
About

Concentration Sushi

Enhance your focus with this memory-based game. Test your recall by matching sushi cards with varying storage times across multiple difficulty levels. Compete with friends via Game Center.

Highlights
  • Memory card matching
  • Multiple game modes
  • Adjustable card storage times
  • Game Center integration
  • Infinite mode
Features
Read full description

*****Sushi apps series 'Total 1 million DL accomplished!'***** Concentration app. Cards that are used in applications, 'Handy Menu Sushi' You push the button and talk. Game Mode "friendly," "normally," "difficulty" "infinitely" and has been prepared. In each level, one card storage time varies. Friendly: 5 seconds Normal: 3 seconds Difficulty: 1 second infinitely: 5 seconds (mode in which the game is over when you make a mistake). Support: -Game Center. -twitter.(iOS5)

About

Corporate Slave Solitaire

Features
Read full description

Corporate Slave Solitaire is a Klondike solitaire card game set in a Japanese black company (overwork culture). Use 13 ranks of corporate position cards — from Intern to CEO — to complete 4 departments (Sales, Development, HR, Accounting). [Features] - Dark and humorous corporate slave theme - Classic Klondike solitaire rules - Intuitive drag & drop controls - Track overtime points as your score - Time and move count tracking [How to Play] Drag cards to arrange them in alternating colors and descending order on the tableau. Stack cards of the same department in ascending order on the foundation to get promoted! Complete all 4 departments to become the CEO! [Ranks] Intern → New Hire → Lead → Supervisor → Deputy Manager → Manager → Senior Manager → Director → Executive Director → Officer → Managing Director → Senior Managing Director → CEO Enjoy the overtime!

Screenshots

Concentration Sushi4 screens
Corporate Slave Solitaire4 screens

Verdict

The call

The clearest difference is update cadence: Corporate Slave Solitaire at weekly against Concentration Sushi's every 3 months. Concentration Sushi's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, ads and in-app purchases 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.

UpkeepUpdate frequency

Concentration Sushi ships an update every 3 months, Corporate Slave Solitaire weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Concentration Sushi versus Corporate Slave Solitaire: the parameters behind the verdict, then further details
ParameterConcentration SushiCorporate Slave Solitaire
PriceFreeFree
Rating4.0 (2 ratings) — better—
Positive reviews95.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 monthsWeekly — better
AdsYesYes
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size132 MB57 MB
Age rating4+4+
DeveloperQualia Systems Inc.LFT Inc.

In-app purchases

None

Concentration Sushi

No in-app purchases

None

Corporate Slave Solitaire

No in-app purchases

Questions

Is Concentration Sushi free?
Concentration Sushi is free to download, with no in-app purchases.
Is Corporate Slave Solitaire free?
Corporate Slave Solitaire is free to download, with no in-app purchases.
Do Concentration Sushi or Corporate Slave Solitaire have ads?
Both Concentration Sushi and Corporate Slave Solitaire show ads.
Which is updated more often, Concentration Sushi or Corporate Slave Solitaire?
Concentration Sushi ships an update every 3 months, and Corporate Slave Solitaire weekly. Most recently, Concentration Sushi was updated on October 30, 2026 and Corporate Slave Solitaire on October 25, 2026.

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