Comparison

SipMaster vs Rotation Sudoku

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

Head to head
About

SipMaster

A competitive game where players estimate the weight of objects. The app works best with dedicated hardware but can be used with a kitchen scale. It offers various game modes for different occasions.

Highlights
  • Weight estimation gameplay
  • Competitive multiplayer
  • Variety of game modes
  • Optional hardware integration
  • Kitchen scale compatibility
Read full description

SipMaster is a revolutionary game you can play when you meet your friends. The game, consisting of an app and associated hardware, combines fun and competition in a completely new form! The game mechanic is to meassure the exact weight of any object and try to predict its weight. Estimate the right weight more precisely than your friends and become the SipMaster! Different game variants provide variety and lasting fun. The game variants differ in competition, teamwork or fun games. There's the right game for every occasion. The app is most fun with the original SipMaster hardware! The precision scale connects to the app seamlessly and takes over the weighing for you. As long as you don't have a SipMaster, you can play your first rounds with a kitchen scale to test it out. Have fun!

About

Rotation Sudoku

Features
Read full description

Discover a fresh take on Sudoku with Rotation Sudoku! Instead of numbers, this unique puzzle game uses letters to fill a grid, adding a new layer of logic and fun. Test your skills with grids of variable sizes, from 4x4 to 16x16, each crafted with rotational symmetry to keep you on your toes. Rotation Sudoku combines the challenge of traditional Sudoku with the added twist of rotational symmetry, offering endless hours of brain-teasing entertainment. Key Features: Letter-Based Sudoku: Play Sudoku with letters instead of numbers! Place one of each letter per row and column in line with classic Sudoku rules. Variable Grid Sizes and Difficulties: Choose your challenge with grid sizes from 4x4 to 16x16 in increments of 2. Start from Very Easy and work your way up to Very Hardโ€”perfect for players of all skill levels. Rotational Symmetry: Each puzzle grid adheres to rotation symmetry, adding a unique twist to the classic Sudoku formula. Daily Puzzles: Keep your mind sharp with new daily puzzles! Each day, tackle a fresh challenge that can help you improve your skills and push your limits. Ranked Play and Leagues: Test your skills in ranked mode! Compete to earn ELO points and climb the ranks, progressing through leagues from Bronze to Silver, Gold, and beyond. Challenge yourself and see how high you can go on the leaderboard! Endless Puzzle Variations: With a wide variety of puzzles and difficulty options, youโ€™ll never run out of challenges. Train Your Brain: Designed for puzzle lovers and Sudoku enthusiasts, Rotation Sudoku provides an engaging workout for your mind. Strengthen your logic skills, enhance your spatial awareness, and enjoy a unique twist on a timeless puzzle game thatโ€™s perfect for all ages. Download Rotation Sudoku now and start climbing the ranks! Eula for in app purchases: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SipMaster4 screens
Rotation Sudoku4 screens

Verdict

The call

The clearest difference is ads: SipMaster at none against Rotation Sudoku's shown. Rotation Sudoku's advantage is update cadence (every 4 days vs every 3 months). On price, in-app purchases, device support and iOS requirement 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. SipMaster sells 6 one-off in-app purchases and Rotation Sudoku sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SipMaster ships an update every 3 months, Rotation Sudoku every 4 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

Scorecard2 real differences ยท 6 level
SipMaster versus Rotation Sudoku: the parameters behind the verdict, then further details
ParameterSipMasterRotation Sudoku
PriceFreeFree
Positive reviews90.9% of reviewsโ€”
Update frequencyEvery 3 monthsEvery 4 days โ€” better
AdsNo โ€” betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesโ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 โ€” better
Further details โ€” not scored
Size32 MB106 MB
Age rating4+4+
DeveloperJLT Technologies GmbHSick App Developers GmbH

In-app purchases

6 purchases

SipMaster

One-time6
  • Cricket$2.99
  • Golf$2.99
  • Tower$2.99
Show 3 more
  • Las Vegas$2.99
  • RabbitHunt$2.99
  • DiDi's Sound Package$3.99
2 purchases

Rotation Sudoku

Subscriptions2
  • Rotation Sudoku Gold$2.991 Month
  • Rotation Sudoku Gold$29.991 Year

Questions

Is SipMaster free?
SipMaster is free to download, with in-app purchases available.
Is Rotation Sudoku free?
Rotation Sudoku is free to download, with in-app purchases available.
Do SipMaster or Rotation Sudoku have ads?
Rotation Sudoku shows ads; SipMaster does not.
Which is updated more often, SipMaster or Rotation Sudoku?
SipMaster ships an update every 3 months, and Rotation Sudoku every 4 days. Most recently, SipMaster was updated on November 3, 2026 and Rotation Sudoku on November 8, 2026.

Other comparisons