Comparison

Sum Fun vs Number Sums

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

Head to head
About

Sum Fun

A unique number puzzle game that combines logic, numbers, and strategy. Enjoy endlessly replayable puzzles with creative board shapes and a brain-boosting gameplay experience. Play at your own pace with no time limits and challenge friends.

Highlights
  • Unique number puzzle gameplay
  • Variety of creative board shapes
  • Brain-boosting mental workout
  • No time limits for relaxed play
  • Challenge friends offline
  • Easy to play, fun to master
Features
Read full description

Sum Fun – The Number Puzzle Game for Sharp Minds Place numbers, match sums, blast the board! Sum Fun is the unique number puzzle that's been loved by players worldwide since 2015. How To Play (3 simple rules): 1. Place a number into any empty slot 2. If it matches the last digit of the sum of its neighbours, they get blasted away! 3. No matches? Place a number that sets up a future sum, and keep blasting until the board is empty! Why you'll love Sum Fun: • Easy to play, fun to master – just 3 simple rules, with surprising depth and strategy • 20+ creative board shapes – play on a Hexagon, Pyramid, Star, Heart, Turtle, Rocket, Butterfly, Snowflake, and many more, with new shapes added regularly! • Seasonal Postcard Challenges – play limited-time events and collect unique downloadable artwork (by real artists!) • No time limits – play at your own pace and relax while keeping your mind sharp • Challenge friends (and yourself!) – share puzzles via QR code, text code, or pass-and-play. No internet needed! • No annoying pop-up ads – your concentration stays on the puzzle, where it belongs! We play Sum Fun too, and keep the experience friendly. • Brain-boosting gameplay – after a few games, you'll be adding up numbers faster than you can say, 'What's six plus eight?' • Multiple themes – choose from Light, Dark, and Midnight to suit your style If you enjoy Sudoku, Kakuro, or other number-based brain games, you'll love the unique twist of Sum Fun. Exercise your mind, master the numbers, and discover why players keep coming back – download free today!

About

Number Sums

This app offers a challenging number puzzle designed to enhance mental math skills. Players must make the sum of numbers in rows, columns, and colored regions match given clues by circling correct numbers and erasing extras. It provides a fun way to practice arithmetic and logic with various difficulty levels.

Highlights
  • Summing numbers in rows and columns
  • Matching sums to clues
  • Circling and erasing numbers
  • Multiple difficulty levels
  • Board sizes from 3x3 to 10x10
  • Hint system
Features
Currently charting
Read full description

Number Sums is a challenging number puzzle to train your mental math. The goal is to make the sum of numbers in each row, column, and colored region be equal to the clues on the side of the board and inside the colored regions. Practice your math skills and logic with Number Sums! Each row, column, and region has its own solution, but the goal of this math game with numbers is to make them all work at the same time. You have to circle the correct numbers and erase the numbers you don't need. Remember, the sums of the numbers in rows, columns and colored regions should be equal to the numbers on the sides of the board and inside each region. Each level of this numbers game has only one solution, try to find it to solve educational math puzzles! Mental arithmetic is an invaluable math skill for your everyday life. Inside Number Sums you'll find math puzzles of various difficulty. The mechanics of these math riddles sounds simple but requires a lot of thinking. Playing sum number games and solving math problems can improve your arithmetic skills. If you are interested in number puzzles or math games for adults, and in training your addition skills, play this engaging number game for hours of fun! How to play Number Sums: - Circle the correct numbers that add up to the values on the sides of the rows, columns and regions. - Use the toggle to switch between circling and erasing modes. It will help you to mark the correct numbers and the extra numbers that you don't need. - Each level of these math puzzles has only one possible solution, so make sure that the rows, columns and colored regions work together at the same time. - Train your math skills with this free number puzzle with various levels of difficulty. Open different types of board from 3x3 to 10x10. Tips to hone your skills: - Erase numbers on the board that are greater than the totals in the boxes. - If there is only one odd number in a column or row, and an even number is the sum in the box outside the board, then remove it. - If the largest number on the board isn't the same as the total outside the board, then add the smallest number from the board to it. If the sum is greater than the value in the box, then erase the largest number. What you get by playing the Number Sums game: - Tons of number puzzle games to challenge your brain. - Enjoy your game experience with the minimalistic and simple design. - Useful hints to help you when you’re stuck. - Mind puzzles with no time limits. Take your time to find the one and only solution to these number games. If you enjoy number games, take a break with Number Sums puzzles. Challenge your logic and play Number Sums anywhere, anytime!

Screenshots

Sum Fun4 screens
Number Sums4 screens

Verdict

The call

The clearest difference is review sentiment: Sum Fun at 100% against Number Sums's 26%. Sum Fun also leads on in-app purchases (none vs 1) and update cadence (every 10 days vs every 2 months). Number Sums's advantage is ratings volume (31K vs 33) and chart position (#197 vs unranked). On price, ads, device support and iOS requirement 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. Number Sums sells 1 one-off in-app purchase. Sum Fun asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sum Fun holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Number Sums has 31K ratings behind it against 33, so its average is the more settled of the two. Written reviews point the same way: 100% of Sum Fun's written reviews are positive against 26% of Number Sums's.

UpkeepUpdate frequency

Sum Fun ships an update every 10 days, Number Sums every 2 months. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

Scorecard7 real differences · 4 level
Sum Fun versus Number Sums: the parameters behind the verdict, then further details
ParameterSum FunNumber Sums
PriceFreeFree
Rating4.9 (33 ratings) — better4.6 (31K ratings)
Positive reviews100.0% of reviews — better25.6% of reviews
Number of ratings3331K — better
Update frequencyEvery 10 days — betterEvery 2 months
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
Best chart rank—#197 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size181 MB227 MB
Age rating4+12+
DeveloperGreg SharpeEasybrain Ltd

Customer experience

Sum Fun

All ratings33 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews47 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Number Sums

All ratings31,317 ratings
Positive90.8%
Neutral4.7%
Negative4.5%
Written reviews1,365 reviews
Positive25.6%
Neutral21.3%
Negative53.0%

Bugs and requests

Sum Fun

Not enough reviews yet to summarise bugs or requests.

Number Sums

Reported bugs

2 issues
  • Incorrect number removal function removed
  • Ads randomly opening browser pages

Requested features

4 requests
  • Dark mode option
  • Separate buttons for circle/erase
  • Auto-erase incorrect numbers
  • Difficulty/grid size selection

In-app purchases

None

Sum Fun

No in-app purchases

1 purchases

Number Sums

One-time1
  • Number Sums No Ads$14.99

Questions

Is Sum Fun free?
Sum Fun is free to download, with no in-app purchases.
Is Number Sums free?
Number Sums is free to download, with in-app purchases available.
Which has better reviews, Sum Fun or Number Sums?
Sum Fun is rated higher. Sum Fun averages 4.9 out of 5 from 33 ratings, while Number Sums averages 4.6 from 31K ratings.
Do Sum Fun or Number Sums have ads?
Both Sum Fun and Number Sums show ads.
Which is updated more often, Sum Fun or Number Sums?
Sum Fun ships an update every 10 days, and Number Sums every 2 months. Most recently, Sum Fun was updated on October 26, 2026 and Number Sums on October 28, 2026.

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