Comparison

Sum 12 vs Sumalo

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

Head to head
About

Sum 12

Features
Read full description

Train your brain while having fun with numbers! This engaging domino game helps improve mental math skills as you strategically match pairs that add up to 12. It’s a great way for kids to practice quick addition in a playful and interactive way. Perfect for players of all ages who enjoy logic and number challenges! The goal of the game is to clear all the dominoes from the playing area. To do this, find two face-up dominoes whose values add up to 12 and select them one after the other. If their sum equals 12, they will be removed, allowing you to flip over any previously blocked dominoes. Keep in mind that a game is not always solvable, so you’ll need a mix of strategy and a bit of luck!

About

Sumalo

Engage in a fast-paced mental math challenge using the reduced sum technique. Test your reflexes across eight unique game modes and compete in seasonal rankings to improve focus and calculation speed.

Highlights
  • Reduced sum technique
  • Eight unique game modes
  • Seasonal rankings and ELO system
  • Real-time duels with friends
  • Detailed performance statistics
  • Cognitive training for focus and memory
Features
Read full description

Test your mental math skills and compete against other players in fast-paced challenges. Sumalo is a competitive mental math game built around speed, accuracy, and strategy, with online duels, multiple game modes, leagues, seasons, rankings, achievements, and rewards. The rules are easy to learn and hard to master: solve each operation and reduce the result to a single digit from 1 to 9. For example: 8 + 7 = 15 → 1 + 5 = 6. The faster and more accurate you are, the more points you earn. MENTAL MATH DUELS Challenge your friends or find an opponent in asynchronous matches. Each player can complete the duel at their own pace while both face the same challenge. Win matches, increase your ELO rating, and climb the global rankings. GAME MODES • Classic: speed and accuracy in the original Sumalo experience. • Beat the Clock: earn the highest score before time runs out. • Guess the number: find the missing number in the operation. • Scale: compare both sides and choose the correct answer. • Chain: solve sequences where each result depends on the previous one. • Outsider: find the false result or the only correct one. • Survival: protect your three lives and go as far as you can. • Mission: reach the target score before time runs out. LEAGUES, SEASONS, AND PROGRESSION • Move up through the leagues and fight for the top positions. • Take part in seasons with different modes and objectives. • Review your accuracy, response time, and winning streak statistics. • Compete in the global rankings and prove your skill. ACHIEVEMENTS AND REWARDS Complete challenges to unlock achievements, badges, and trophies. Earn coins through victories and progression, visit the in-game store, and expand your inventory with new items. WHY PLAY SUMALO? • Quick matches designed to play at any time. • Duels against friends and other players. • Varied modes for practicing mental math, logic, and focus. • Competitive progression with ELO, leagues, seasons, and rankings. • Achievements, statistics, rewards, and inventory. • A different take on math games and number puzzles. Sumalo is made for players who enjoy numbers, brain challenges, and competition. Learn the digital root mechanic, beat your best scores, and conquer every season.

Screenshots

Sum 124 screens
Sumalo4 screens

Verdict

The call

The clearest difference is in-app purchases: Sumalo at none against Sum 12's 1. Sumalo also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). On price 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. Sum 12 sells 1 one-off in-app purchase. Sumalo asks for nothing beyond the download.

UpkeepUpdate frequency

Sum 12 ships an update every 3 months, Sumalo weekly. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

Scorecard4 real differences · 6 level
Sum 12 versus Sumalo: the parameters behind the verdict, then further details
ParameterSum 12Sumalo
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size46 MB120 MB
Age rating4+4+
DeveloperVitalij SchaeferDaniel Salamanca Garcia

In-app purchases

1 purchases

Sum 12

One-time1
  • Remove ads$5.99
None

Sumalo

No in-app purchases

Questions

Is Sum 12 free?
Sum 12 is free to download, with in-app purchases available.
Is Sumalo free?
Sumalo is free to download, with no in-app purchases.
Do Sum 12 or Sumalo have ads?
Sum 12 shows ads; Sumalo does not.
Which is updated more often, Sum 12 or Sumalo?
Sum 12 ships an update every 3 months, and Sumalo weekly. Most recently, Sum 12 was updated on September 8, 2026 and Sumalo on September 15, 2026.

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