Comparison

Word Calm vs SUM

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

Head to head
About

Word Calm

Engage in a classic word puzzle experience by searching and connecting letters to form words. Progress through levels, earn rewards, and expand your vocabulary. This free game offers a fun way to exercise your brain and pass the time.

Highlights
  • Search and connect letters to form words
  • Crossword puzzle gameplay
  • Expand vocabulary
  • Over 1000 puzzles
  • No time limit
  • Earn rewards and coins
Features
Currently charting
Read full description

Do you love the excitement of classic word games? Search and connect the letter the right way to create a word. DOWNLOAD Word Calm for FREE! Come challenge now. Word Calm is a crossword puzzle game, search and connect the right letters to get the correct word, clear each level to win awesome rewards and coins, help you to clear levels. This is the best crossword puzzle and learning word game you can ask for!

 When you start playing you will be deeply attracted by it. Word Calm can help you escape the boring time, all while exercising your brain and learning new words. The best pick for exercising and having fun at the same time. Word Calm is a free game for adults and kids, which can challenge skill of words with friends.

 -Tons of words to expand your vocabulary! -Amazing graphics to give you the best visual experience! -Over 1000+ puzzles to complete.
 -No time limit, no need to rush!
 -Multiple coins and items to help you clear the level!

 How to play?
 Search and connect the letter blocks and build the correct words unto it is all fill out.

 If you have any suggestion or advice feel free to contact us, hope Word Calm can give you better gaming experience each day.

About

SUM

Features
Read full description

SUM is a quiet puzzle game about seeing mathematical relationships. Move, compare and arrange mathematical pieces until the idea behind each puzzle becomes clear. There are no timers, scores, streaks or advertisements — only space to look, notice and understand. Explore the first two sets for free. Unlock Premium once to continue through the complete collection of puzzles and mathematical cards.

Screenshots

Word Calm4 screens
SUM3 screens

Verdict

The call

The clearest difference is ads: SUM at none against Word Calm's shown. SUM also leads on update cadence (every 3 days vs monthly). Word Calm's advantage is chart position (#125 vs unranked) and iOS requirement (12.1 vs 15.0). On price, 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

Both are free to download. Word Calm sells 10 one-off in-app purchases and SUM sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Word Calm ships an update monthly, SUM every 3 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 7 level
Word Calm versus SUM: the parameters behind the verdict, then further details
ParameterWord CalmSUM
PriceFreeFree
Rating4.5 (14K ratings) — better—
Positive reviews44.0% of reviews—
Number of ratings14K — better—
Update frequencyMonthlyEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#125 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.1 — better15.0
Further details — not scored
Size284 MB110 MB
Age rating4++4
DeveloperFUNJOY TECHNOLOGY LIMITEDAlex van Rooijen

Bugs and requests

Word Calm

Reported bugs

3 issues
  • Daily puzzle stuck on repeat for days
  • Ads that cannot be closed or skip option
  • Coins not awarded properly for tournament placements

Requested features

3 requests
  • Allow playing missed daily puzzles
  • Separate tournament mode for casual and hardcore players
  • Improve dictionary and word acceptance consistency

SUM

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Word Calm

One-time10
  • coin1$0.99
  • greenhandoffer1$0.99
  • coin2$1.99
Show 7 more
  • limitedoffer3$2.99
  • coin4$3.99
  • limitedoffer4$3.99
  • limitedoffer5$4.99
  • coin8$7.99
  • limitedoffer8$7.99
  • limitedoffer10$9.99
1 purchases

SUM

One-time1
  • SUM Premium$3.99

Questions

Is Word Calm free?
Word Calm is free to download, with in-app purchases available.
Is SUM free?
SUM is free to download, with in-app purchases available.
Do Word Calm or SUM have ads?
Word Calm shows ads; SUM does not.
Which is updated more often, Word Calm or SUM?
Word Calm ships an update monthly, and SUM every 3 days. Most recently, Word Calm was updated on October 28, 2026 and SUM on October 25, 2026.

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