Comparison

Word Master Stack vs Lumath

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

Head to head
About

Word Master Stack

This is a word-building board game where players create words by placing letter tiles. Letters can be stacked on top of existing tiles, with higher stacks yielding more points. It offers offline play, multiple languages, and detailed statistics.

Highlights
  • Stack letters on top of existing tiles
  • Scoring based on stack height
  • Offline mode with 4 difficulty levels
  • Pass and Play mode
  • Built-in word definitions
  • Multiple languages supported
  • Detailed statistics
Features
Read full description

** Word Master Stack is the classic crosswords board game you know and love with a twist: You can place letters on top of each other! ** HOW TO PLAY Build words on a gridded gameboard by placing letter tiles next to or on top of the tiles already on the board. All tiles played on a turn must form part of one continuous straight horizontal or vertical line and all new words formed in all directions must be valid. Each letter will score the height of the stack they're on. That means, the higher the stack you form, the more points you get! FEATURES • Offline mode with 4 difficulty levels • Pass and Play mode • Built in word definitions • See which words you could have played after each turn • Best word lists existing for each language • Multiple themes and tile designs • Detailed stats • Validation and scoring of words as you place them on the board • Custom tile drawing modes • Hints feature Languages supported: - English - French (Français) - Portuguese (Português) - German (Deutsch) - Spanish (Español) - Italian (Italiano) - Dutch(Nederlands) - Norwegian(Norsk) - Romanian(Romana) - Catalan(Català) Terms of use: http://jaguarstds.com/terms_of_use.html

About

Lumath

Features
Read full description

Lumath is a CrossMath puzzle: an arithmetic crossword where short equations run across and down and share the cells where they cross. Fill the blanks so every equation holds. Calm and quick at the start, genuinely hard at the top. WHAT MAKES LUMATH DIFFERENT • Ads you can live with. One small banner at the bottom of the screen. Never a full-screen ad, never an ad between puzzles, never one you have to watch to keep playing. Non-personalised ads are one switch away in Settings → Privacy. • Difficulty that actually goes somewhere. Seven tiers from Beginner to Genius. Genius boards have 34 equations with up to four operands, brackets, powers, modulo, square roots, squares and factorials. • Exactly one solution, every time. A solver checks each puzzle before you see it, so you never have to guess between two valid answers. • Hints that teach. Nudge, Narrow and Strategy are free and never give away a number. Reveal cell and Solve line are earned by solving — never sold. • Real players only. Leaderboards show real accounts; when nobody has played yet, the board says so instead of inventing names. Follow the players you like and race them on a Following board. DAILY One shared puzzle a day, the same for everyone. Keep a streak, earn freeze tokens that cover a missed day, and race the daily board. Missed one? Play any past day from the calendar and collect a trophy for a full month. ARCADE Endless for a quiet run with no clock. Rush to beat the timer. Streak to see how far you get before one mistake. Plus a weekly twist that changes the rules, six in rotation. REVEAL Every week a new picture hides behind jigsaw pieces, and each piece is one puzzle. Solve it and the piece snaps into place. Play solo, or invite family and friends into a shared canvas where every solve reveals the picture for everyone. Finish the week and the picture joins your gallery, ready to replay any time. PROGRESS THAT ADDS UP 90 badges across seven ladders, player levels, and three daily goals. Weekly and all-time leaderboards rank by points and show how far you moved. React to another player's time with a tap. ON THE BOARD Pencil marks for the possibilities you are weighing. Undo, redo and a pause button. An optional mistake limit if you want the pressure, off if you don't. Every board autosaves, so your clock, hints and mistakes survive a resume. PRACTICE Packs of 100 puzzles per tier and four input styles: candidate tray, type-in, operator blanks and mixed. A two-puzzle calibration finds your level. CALM BY DESIGN No lives, no coins, and a timer you can hide. Seven themes including Paper, Slate, Night and Sepia, plus high contrast, larger text, reduced motion, and sound, music and haptics you can switch off. Optional ambient music while you solve. ALSO A home-screen widget for your streak and the week's picture. Cross-device sync, so your progress, streak and best times follow your account. The daily puzzle and any pack you have opened work offline. Available in English, German, Spanish, French, Hungarian, Portuguese, Romanian, Russian, Japanese, Korean and Chinese.

Screenshots

Word Master Stack4 screens
Lumath4 screens

Verdict

The call

The clearest difference is in-app purchases: Lumath at none against Word Master Stack's 2. Lumath also leads on update cadence (every 3 weeks vs every 4 months). Word Master Stack's advantage is iOS requirement (12.0 vs 15.0). On price, ads 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. Word Master Stack sells 2 in-app purchases, starting at $0.99 per month. Lumath asks for nothing beyond the download.

UpkeepUpdate frequency

Word Master Stack ships an update every 4 months, Lumath every 3 weeks. The most recent releases landed on September 23, 2026 and September 11, 2026 respectively.

Scorecard3 real differences · 7 level
Word Master Stack versus Lumath: the parameters behind the verdict, then further details
ParameterWord Master StackLumath
PriceFreeFree
Rating4.7 (166 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings166 — better—
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size77 MB74 MB
Age rating4+4+
DeveloperLuis GualandiMJK APPS SRL

In-app purchases

2 purchases

Word Master Stack

Subscriptions2
  • Pro Subscription Month$0.991 Month
  • Pro Subscription Year$5.991 Year
None

Lumath

No in-app purchases

Questions

Is Word Master Stack free?
Word Master Stack is free to download, with in-app purchases available.
Is Lumath free?
Lumath is free to download, with no in-app purchases.
Do Word Master Stack or Lumath have ads?
Both Word Master Stack and Lumath show ads.
Which is updated more often, Word Master Stack or Lumath?
Word Master Stack ships an update every 4 months, and Lumath every 3 weeks. Most recently, Word Master Stack was updated on September 23, 2026 and Lumath on September 11, 2026.

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