Comparison

Concentration Sushi vs Numbers Solitaire 2

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

Numbers Solitaire 2

A free, number-based card puzzle game designed for brain training. It features simple rules where players remove cards by connecting them numerically. Offers multiple game modes for varied challenges.

Highlights
  • Number-based card removal
  • Brain-training puzzle
  • Simple rules
  • Four game modes
  • Special card feature
Features
Read full description

A free, easy-to-play card game that uses numbers. A brain-training puzzle with simple rules. It feels great when you win or use a special card! -RULE The objective of the game is to remove all of the cards you’re dealt. You remove cards one at a time using numerical cards with 1-10 on them. You make connections using the cards 1-10, where the number can come before or after. e.g.) 7ー6ー7ー8ー9ー10ー1ー2ー1ー10 But you can only remove cards that are on top. Try and think about their order as you remove them. The game is cleared by removing all of the cards. There are four different game modes. --SIMPLE Play with GREEN cards only. --COLORS Play with three different colored cards, GREEN, BLUE, and ORANGE. Remove cards of the same color by their numerical order. --ENDLESS Play with three colored cards like in COLORS. In this mode you can’t remove all of the cards. When you remove some cards, new cards are added, and the game continues until you can’t make any more moves. If you use the Special Card that appears sometimes, you can remove all the remaining cards, and you’ll be given new cards to continue the game with. Plan carefully, and try to remove as many cards as you can. --THREE Match! You VS A.I. URL scheme numbersSolitaire://

Screenshots

Concentration Sushi4 screens
Numbers Solitaire 23 screens

Verdict

The call

The clearest difference is rating: Numbers Solitaire 2 at 4.5 against Concentration Sushi's 4.0. Numbers Solitaire 2 also leads on ads (none vs shown) and iOS requirement (7.1 vs 12.0). On price, review sentiment, ratings volume and update cadence 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. Concentration Sushi sells 2 one-off in-app purchases and Numbers Solitaire 2 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Numbers Solitaire 2 holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews complicate that: 95% of Concentration Sushi's written reviews are positive against 93% of Numbers Solitaire 2's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
Concentration Sushi versus Numbers Solitaire 2: the parameters behind the verdict, then further details
ParameterConcentration SushiNumbers Solitaire 2
PriceFreeFree
Rating4.0 (2 ratings)4.5 (4 ratings) — better
Positive reviews95.0% of reviews — better92.6% of reviews
Number of ratings24 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.07.1 — better
Further details — not scored
Size132 MB18 MB
Age rating4+4+
DeveloperQualia Systems Inc.Comgate

Customer experience

Concentration Sushi

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews20 reviews
Positive95.0%
Neutral5.0%
Negative0.0%

Numbers Solitaire 2

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews54 reviews
Positive92.6%
Neutral5.6%
Negative1.9%

In-app purchases

2 purchases

Concentration Sushi

One-time2
  • V.S.Mode$0.99
  • No Ads$3.99
1 purchases

Numbers Solitaire 2

One-time1
  • Remove Ads$1.99

Questions

Is Concentration Sushi free?
Concentration Sushi is free to download, with in-app purchases available.
Is Numbers Solitaire 2 free?
Numbers Solitaire 2 is free to download, with in-app purchases available.
Which has better reviews, Concentration Sushi or Numbers Solitaire 2?
Numbers Solitaire 2 is rated higher. Concentration Sushi averages 4.0 out of 5 from 2 ratings, while Numbers Solitaire 2 averages 4.5 from 4 ratings.
Do Concentration Sushi or Numbers Solitaire 2 have ads?
Concentration Sushi shows ads; Numbers Solitaire 2 does not.
Which is updated more often, Concentration Sushi or Numbers Solitaire 2?
Concentration Sushi ships an update every 3 months, and Numbers Solitaire 2 every 3 months. Most recently, Concentration Sushi was updated on October 4, 2026 and Numbers Solitaire 2 on October 16, 2026.

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