Comparison

Oei! vs Sudayku

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

Head to head
About

Oei!

Features
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Oei! is a thrilling turn-based game that combines the strategy of Chess, the creativity of Scrabble, and the excitement of Yahtzee. But instead of forming words with letters, youโ€™ll be creating unique patterns from dice! Challenge yourself against the computer, or team up with friends for a fun local multiplayer experience. Compete to earn points by making intricate patterns, and the first player to reach the target score wins! Looking for more competition? Test your skills with the Online Multiplayer 1v1 feature, where you can face off against players from around the world! But that's not all! You can also dive into solo puzzles or enjoy a relaxing solitaire version of the game, offering endless ways to play. Ready to take on the challenge? Download Oei! today and start rolling!

About

Sudayku

Features
Read full description

Sudayku is your morning sudoku. Every night at midnight, four fresh puzzles appear: easy, medium, hard and expert. Everyone plays exactly the same ones, so times are actually comparable. Solve one over coffee and the rest whenever you like. DAILY LEADERBOARD Your time counts towards that day's leaderboard. Mistakes and hints add penalty time, so calm and clean often beats rushed. In the evening you hear where you finished. Past leaderboards stay around: browse back to Sudayku #1 and your own time is still there. COINS Every daily puzzle earns coins, and twice as many when you solve it without mistakes or hints. Bonus coins for all four in one day, for your streak and for winning the day. Spend them on a streak freeze, a board theme, a colour and badge for your name, or a daily puzzle you missed. Coins never buy you a better time: the leaderboard stays fair. LEARN AS YOU PLAY Stuck? The explanation hint first shows you where to look, then tells you why. And when you make a mistake, you see why straight away: the clashing digit lights up. MATCHES WITH FRIENDS Challenge a friend and play the same puzzle on a shared countdown. Not around? They play it later and you compare afterwards. YOUR PROGRESS A daily streak, badges, a chart of your solving times, and the Sudayku index: one number that follows how you're playing right now, weighted by difficulty. NO FUSS No ads, no trackers. Pick a name and play. Sign in with Apple, Google or email only if you want to play on more than one device. Add friends with a code, a QR or straight from the leaderboard.

Screenshots

Oei!3 screens
Sudayku4 screens

Verdict

The call

The clearest difference is in-app purchases: Sudayku at none against Oei!'s 8. Sudayku also leads on ads (none vs shown) and update cadence (every 3 days vs every 9 days). Oei!'s advantage is iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Oei! sells 8 one-off in-app purchases. Sudayku asks for nothing beyond the download.

UpkeepUpdate frequency

Oei! ships an update every 9 days, Sudayku every 3 days. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

Scorecard4 real differences ยท 2 level
Oei! versus Sudayku: the parameters behind the verdict, then further details
ParameterOei!Sudayku
PriceFreeFree
Update frequencyEvery 9 daysEvery 3 days โ€” better
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size344 MB5 MB
Age rating4+12+
DeveloperLee DarcyKrijn Haasnoot

In-app purchases

8 purchases

Oei!

One-time8
  • Keith Talbot Pack$0.99
  • Daniel Torres Pack$0.99
  • Fishbowl pack$0.99
Show 5 more
  • Glenn Southern Pack$0.99
  • Brian J Read Pack$0.99
  • Physics Pack$0.99
  • Cris Palomino Pack$0.99
  • Disable ads$2.99
None

Sudayku

No in-app purchases

Questions

Is Oei! free?
Oei! is free to download, with in-app purchases available.
Is Sudayku free?
Sudayku is free to download, with no in-app purchases.
Do Oei! or Sudayku have ads?
Oei! shows ads; Sudayku does not.
Which is updated more often, Oei! or Sudayku?
Oei! ships an update every 9 days, and Sudayku every 3 days. Most recently, Oei! was updated on October 8, 2026 and Sudayku on October 28, 2026.

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