Comparison

Arcs vs NinjaSudoku

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

Head to head
About

Arcs

Engage your mind with a unique circular puzzle experience. Rotate and slide arcs to complete intricate designs, starting simple and progressing to complex challenges. This highly-rated game offers a fun and relaxing way to unwind.

Highlights
  • 100 circular puzzles
  • Rotate circles and slide arcs
  • Progressive difficulty
  • Zen and relaxing gameplay
  • Assist for colorblind people
  • New levels added
Features
Read full description

Arcs is a spin on the classic sliding tile puzzle game! Use your brain power to solve 100 circular puzzles by rotating circles and sliding arcs. The puzzles begin with simple designs and grow more complex as the levels progress. Arcs is a highly rated puzzle game that is challenging and fun for all ages! Love This Exercise by Ginger Peachy "This game is very Zen. I play all the levels and then start over. Beautiful colors." Cool game by CancaoDeDeus "I love this game! It starts easy but progresses through more complex levels but not at a frustrating pace. I love the fact I can skip levels and then come back if I want to try later. I even started the whole thing over. Excellent." Love this game! by Dee215 "I am addicted! I have to hide from people when the game updates because I can't be bothered until I clear all the levels. Nice way to unwind after a stressful day." Great mind game by Kantokahsdid "I love to play this right before bed to get my mind off things... Great mind game :-)" Love it!!! by KriSk0DiSk0 "The ultimate puzzle game! I cant find anything else like it. Im hooked." Love it! by cdctx "Fun and challenging, and addicting. Can't wait for more levels!" Arcs! by FransCronje "Great fun! Awesome challenge without any frustrations. Love it!" One of my all time favorites... by KZZZZZB "...simple & beautiful." Great sliding blocks variant by rspoonts "This game is very appealing to puzzle fans. And I love it even more now that it has an assist for color blind people. Thanks for adding this feature!" Great game by DQE "Love this app, never tire if playing it yet it is not stressful to play." Beautiful and Fun by Julesthebee "Great app - thanks for the new levels!" Finally! by Peggy59372 "I love this app and have been doing the same puzzles over and over again! Thank you for finally adding more!! Keep adding! " Awesome by Navajo "It's a tongue twister for your brain." Serious fun by Mary "This is the best puzzle app I have found! It was a fun and enjoyable challenge to learn how to rotate the discs to solve the puzzles. Please make more levels asap! Also more types of puzzles like this!" Excellent game by R.Edd "This is one of the few games I have on my iPhone and iPad. A "quick" game you can pick up and come back to anytime. The touch interface is excellent, and while the graphics are basic, the game itself is excellent." Really fun!!! by Li3303 "A great game! Copy the color pattern in the sample circle by turning the rings. There's one black empty space. You push the arc you want to move onto into the empty space then turn the rings to reposition it. It's like one of those number 15 puzzle games only with a circle, arcs and pretty colors." Great game by XterryX "Really a great game I didn't think it was hard enough but I was wrong. After the first puzzle it started to drive me nuts I LOVE this game." Arcs Puts New Spin On Puzzling by AppSmile "The game truly meets it's goal of becoming a quick and yet immersive puzzle game. Overall Pomegranate Apps really impressed us by their adaption of the tile game as well as the precision and yet simplicity of the game." More levels please! by Boggle Fan "This is an awesome app! I am on my second run thru the puzzles and I love the simplicity and bright colors."

About

NinjaSudoku

Features
Read full description

NinjaSudoku includes - Level 1-5 sudoku generator - Save and play sudoku of your choice - Notes - Undo - Multi-step help - Color mode - Flat, popup free user interface - Ad free - Flight mode friendly

Screenshots

Arcs4 screens
NinjaSudoku4 screens

Verdict

The call

The clearest difference is price: NinjaSudoku at Free against Arcs's $2.99. Arcs's advantage is update cadence (every 2 months vs every 52 months) and iOS requirement (11.0 vs 15.6). On ads, 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

NinjaSudoku is free to download; Arcs costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Arcs ships an update every 2 months, NinjaSudoku every 52 months. The most recent releases landed on August 16, 2026 and May 17, 2026 respectively.

Scorecard3 real differences · 7 level
Arcs versus NinjaSudoku: the parameters behind the verdict, then further details
ParameterArcsNinjaSudoku
Price$2.99Free — better
Rating4.8 (56 ratings) — better—
Positive reviews85.2% of reviews—
Number of ratings56 — better—
Update frequencyEvery 2 months — betterEvery 52 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size5 MB1 MB
Age rating4+4+
DeveloperPomegranate Apps LLCCompiled

In-app purchases

None

Arcs

No in-app purchases

None

NinjaSudoku

No in-app purchases

Questions

Is Arcs free?
Arcs costs $2.99, with no in-app purchases.
Is NinjaSudoku free?
NinjaSudoku is free to download, with no in-app purchases.
Do Arcs or NinjaSudoku have ads?
Neither Arcs nor NinjaSudoku shows ads.
Which is updated more often, Arcs or NinjaSudoku?
Arcs ships an update every 2 months, and NinjaSudoku every 52 months. Most recently, Arcs was updated on August 16, 2026 and NinjaSudoku on May 17, 2026.

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