Comparison

Upwords vs Treasure Sudoku

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

Head to head
About

Upwords

This word game challenges you to stack letters on existing words to create new ones. Score higher by stacking higher and outsmarting opponents. Play with friends globally, challenge the computer, or enjoy local multiplayer.

Highlights
  • Stack letters to change words
  • Score points based on stacking height
  • Play with friends globally
  • Challenge computer opponents (4 skill levels)
  • Pass & Play mode for local multiplayer
  • In-game chat
Features
Read full description

UPWORDS – The Stacking Word Game! UPWORDS is the classic 3D crossword game where you don’t just play words… you change them! Stack letters on top of existing words to transform them into new words. Score more points the higher you stack, and outsmart your opponents. Why you’ll love it: - Fun, fast, and endlessly repayable - Play with friends around the world or challenge random opponents - Join a Tournament! - Test yourself against the Computer (4 skill levels) - Pass & Play with family on one device - In-game chat keeps the competition lively UPWORDS is more than just fun — it keeps your brain sharp as you find clever ways to build and stack words. The higher you go, the higher you score! Download today and start stacking your way to victory. -- Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.upwords-app.com/privacy.html

About

Treasure Sudoku

Embark on a puzzle adventure that blends classic Sudoku with a quest for ancient relics. Solve logic puzzles across diverse locations to uncover treasures and build your collection. Enjoy themed environments and offline play.

Highlights
  • Classic Sudoku gameplay with multiple difficulty levels
  • Daily puzzles with unique rewards
  • Interactive world map with diverse regions
  • Collect and display rare artifacts
  • Themed environments
  • Offline play
Features
Read full description

Embark on a puzzle adventure where every solved Sudoku uncovers ancient relics and hidden treasures. Treasure Sudoku combines the timeless logic of Sudoku with an explorer's quest for legendary artifacts. Navigate an interactive world map, conquer puzzles across exotic locations, and build your collection of rare relics in your personal treasure vault. FEATURES: - Classic Sudoku gameplay with multiple difficulty levels — from beginner-friendly to expert challenge - Daily puzzles with unique rewards to keep you coming back - Explore a beautiful world map with diverse regions to unlock - Collect and display rare artifacts in your interactive treasure vault - Visit the Bazaar to customize your board with rare skins, stock up on hints and power-ups, or grab a gold pack to keep exploring - Incredible themed environments — from desert ruins to arctic temples - Progress tracking and statistics to sharpen your skills - Works completely offline — play anywhere, anytime Whether you're a Sudoku master or picking up your first puzzle, Treasure Sudoku offers a fresh twist on the classic brain game. Start your expedition today.

Screenshots

Upwords4 screens
Treasure Sudoku4 screens

Verdict

The call

The clearest difference is ads: Treasure Sudoku at none against Upwords's shown. Treasure Sudoku also leads on rating (5.0 vs 4.7) and iOS requirement (15.0 vs 17.0). Upwords's advantage is ratings volume (9.3K vs 7) and update cadence (every 2 days vs every 4 days). On price, in-app purchases, monetization model 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

Both are free to download. Upwords sells 10 in-app purchases, starting at $1.49 per month and Treasure Sudoku 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

Treasure Sudoku holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Upwords has 9.3K ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Upwords ships an update every 2 days, Treasure Sudoku every 4 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Upwords versus Treasure Sudoku: the parameters behind the verdict, then further details
ParameterUpwordsTreasure Sudoku
PriceFreeFree
Rating4.7 (9.3K ratings)5.0 (7 ratings) — better
Positive reviews60.1% of reviews—
Number of ratings9.3K — better7
Update frequencyEvery 2 days — betterEvery 4 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size51 MB230 MB
Age rating4+4+
DeveloperLonely Star Software, Inc.Lauren Hart

Customer experience

Upwords

All ratings9,337 ratings
Positive93.5%
Neutral3.4%
Negative3.1%
Written reviews519 reviews
Positive60.1%
Neutral9.6%
Negative30.3%

Treasure Sudoku

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Upwords

Reported bugs

4 issues
  • Ads that cannot be closed
  • Frequent crashes and freezes
  • Login and verification issues
  • Incorrect scoring and word validation

Requested features

5 requests
  • Option to use British dictionary
  • Choice of dictionaries
  • Ability to swap more than one letter
  • Show opponent's remaining tiles
  • Fairer letter distribution

Treasure Sudoku

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Upwords

Subscriptions2
  • Premium Bundle Monthly7 Days trial$1.491 Month
  • Premium Bundle Yearly7 Days trial$11.991 Year
One-time8
  • Full Upgrade - Free!Free
  • Word Glow$1.99
  • 20 Tokens$1.99
Show 5 more
  • 60 Tokens$4.99
  • 125 Tokens$9.99
  • Large Token Pack$9.99
  • 260 Tokens$19.99
  • Premium Bundle Lifetime$34.99
1 purchases

Treasure Sudoku

One-time1
  • Explorer's Pass$4.99

Questions

Is Upwords free?
Upwords is free to download, with in-app purchases available.
Is Treasure Sudoku free?
Treasure Sudoku is free to download, with in-app purchases available.
Which has better reviews, Upwords or Treasure Sudoku?
Treasure Sudoku is rated higher. Upwords averages 4.7 out of 5 from 9.3K ratings, while Treasure Sudoku averages 5.0 from 7 ratings.
Do Upwords or Treasure Sudoku have ads?
Upwords shows ads; Treasure Sudoku does not.
Which is updated more often, Upwords or Treasure Sudoku?
Upwords ships an update every 2 days, and Treasure Sudoku every 4 days. Most recently, Upwords was updated on November 8, 2026 and Treasure Sudoku on November 5, 2026.

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