Comparison

Flow Fit vs Sumaddle

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

Head to head
About

Flow Fit

This app combines Sudoku with jigsaw puzzle mechanics, offering a fresh take on the classic number game. It features over 2000 unique puzzles with adjustable difficulty levels and daily challenges to keep your mind engaged.

Highlights
  • Unique Sudoku and Jigsaw hybrid gameplay
  • Over 2000 unique puzzles
  • Daily puzzles with streak rewards
  • Adjustable difficulty from easy to extreme
  • Mistake marking and perfect play tracking
  • Cloud progress syncing
  • Achievements and calming atmosphere
Features
Read full description

SUDOKU MEETS JIGSAW IN THIS ADDICTIVE EVOLUTION OF EVERYBODY’S FAVORITE NUMBER PUZZLE! From the makers of Flow Free, the #1 hit puzzle game with over 300 million downloads comes Flow Fit: Sudoku! A UNIQUE TWIST ON SUDOKU Flow Fit: Sudoku is a whole new way to play! Part Sudoku, part Jigsaw, these shaped boards, colorful pieces, and challenging logic puzzles are guaranteed to get those cogs turning. OVER 2000 UNIQUE PUZZLES & DAILY PUZZLES Keep your brain young with daily puzzles that never get old. Carefully crafted, high-quality puzzles delivered to you every day, each Sudoku puzzle offers a brand new challenge to wrap your head around. Earn a streak and watch the days pile up. Can you earn a year-long streak? GO EASY OR GO EXTREME— YOU DECIDE! Looking for an easy-breezy brain teaser or an uncrackable enigma? With difficulties ranging from easy to extreme, there’s a puzzle to suit everyone. MIX IT UP WITH PUZZLE BUNDLES Whether you’re looking to hone your Sudoku strategy with Regions or take a walk on the wild side with Wildcards, there’s always a new bundle to explore. ----------------------------------------- FLOW FIT: SUDOKU – FEATURES ----------------------------------------- - Over 2000 unique puzzles with difficulties from easy to extreme - Daily Puzzles! Play every day to earn a streak - Mistake marking to help improve your strategy & stay on the right track - Track your Perfects! Challenge yourself to play mistake-free. - Beautiful calming music and atmosphere - Earn achievements for pack completions and daily streaks - Sync your progress to the cloud - Get more hints and levels by watching rewarded videos - Unique shaped boards and Tetris-style puzzle pieces EXPERIENCE THE NEWEST EVOLUTION OF SUDOKU! Download Flow Fit: Sudoku today!

About

Sumaddle

This logic puzzle game transforms pencil-and-paper challenges into interactive brain teasers. Fit number combinations to clues using pure logic, with no mental arithmetic required. Enjoy over 150 free puzzles of varying difficulty, with built-in help and offline play.

Highlights
  • Interactive logic puzzles
  • Number combination fitting
  • Pure logic solving
  • Built-in help and mistake correction
  • Over 150 free puzzles
  • Offline play
  • Ad-free experience
Features
Read full description

This type of logical puzzle was first seen in the Japan Puzzle Championship 2006 and is sometimes known as Doppelblock, or Smashed Sums. When played with pencil and paper, these puzzles can be hard work to solve. Sumaddle changes that by transforming the puzzles into interactive brain teasers that unfold before your eyes. Each puzzle has a unique solution. Finding the solution involves fitting the number combinations to the clues. The app makes it easy to view the possible combinations, you don’t need to do any sums in your head. Instead, you are able to focus on using logic to narrow down the combinations and find a fitting arrangement. The puzzles come in a range of sizes and difficulties, to suit all levels of skill and puzzling purposes. Choose a small puzzle to idle away a minute or two while waiting in a queue, or a big puzzle to give your brain some exercise during a coffee break! Some reasons why you will enjoy playing Sumaddle: • more than 150 puzzles are included for free • all puzzles can be solved with pure logic, no mental arithmetic required • the sophisticated built-in help can explain the logical reasoning at each step and also fix mistakes if you go wrong • the built-in help is completely free, use it as much as you like • works offline (great for long journeys) • a high standard of accessibility, including comprehensive support for VoiceOver • ad-free play - there are absolutely no ads! IGRS age rating (Indonesia Game Rating System): 3+ Designed and developed in Winterthur, Switzerland

Screenshots

Flow Fit4 screens
Sumaddle3 screens

Verdict

The call

The clearest difference is ads: Sumaddle at none against Flow Fit's shown. Sumaddle also leads on review sentiment (95% vs 69%) and update cadence (every 3 weeks vs every 2 months). Flow Fit's advantage is ratings volume (6.7K vs 769) and iOS requirement (10.0 vs 17.0). On price, rating, in-app purchases and monetization model 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. Flow Fit sells 4 one-off in-app purchases and Sumaddle sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Flow Fit against 4.9 for Sumaddle. That said, the two scores are not equally well evidenced: Flow Fit has 6.7K ratings behind it against 769, so its average is the more settled of the two. Written reviews are what separate them: 69% of Flow Fit's written reviews are positive against 95% of Sumaddle's.

UpkeepUpdate frequency

Flow Fit ships an update every 2 months, Sumaddle every 3 weeks. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
Flow Fit versus Sumaddle: the parameters behind the verdict, then further details
ParameterFlow FitSumaddle
PriceFreeFree
Rating4.8 (6.7K ratings)4.9 (769 ratings) — better
Positive reviews68.5% of reviews94.9% of reviews — better
Number of ratings6.7K — better769
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better17.0
Further details — not scored
Size141 MB31 MB
Age rating4+4+
DeveloperBig Duck Games LLCJonathan Buchanan

Customer experience

Flow Fit

All ratings6,727 ratings
Positive96.4%
Neutral2.3%
Negative1.3%
Written reviews200 reviews
Positive68.5%
Neutral10.0%
Negative21.5%

Sumaddle

All ratings769 ratings
Positive98.3%
Neutral0.7%
Negative1.0%
Written reviews98 reviews
Positive94.9%
Neutral1.0%
Negative4.1%

User reviews

Flow Fit

From 6.7K App Store ratings

What we love

  • 🚀 Addictive and fun gameplay
  • 👍 Variety of puzzle difficulty levels
  • 💡 Unique take on Sudoku
  • 👍 Non-intrusive ads
  • 👍 Responsive and clean UI

Room to improve

  • 🐛 Occasional crashes and bugs
  • 🔋 High battery consumption
  • 🔒 Clipboard data access without consent
  • 👎 Lack of undo/redo functionality
  • 👎 Difficulty ramps up too quickly

Sumaddle

From 769 App Store ratings

What we love

  • 👍 Fun and challenging game
  • 👍 Clean and intuitive interface
  • 👍 Helpful hint system
  • 🚀 No ads or data collection
  • 💡 Unique puzzle concept

Room to improve

  • 🐛 Automatic hints can be intrusive
  • 🐛 Inability to replay completed puzzles
  • 💡 Need more free/sample puzzles
  • 💡 Difficulty progression could be improved

Bugs and requests

Flow Fit

Reported bugs

3 issues
  • Pieces disappearing off the screen
  • Puzzle progress not saving correctly
  • Inconsistent daily puzzle streak tracking

Requested features

5 requests
  • Option to disable hints/clues
  • Ability to annotate the puzzle board
  • More easy and medium difficulty levels
  • Calendar to access past daily puzzles
  • Landscape mode support

Sumaddle

Reported bugs

2 issues
  • Losing progress when minimizing the app
  • Inconsistent difficulty ratings

Requested features

4 requests
  • Ability to selectively pencil in notes
  • More difficult puzzle options
  • Synced progress across devices
  • Detailed statistics and leaderboard

In-app purchases

4 purchases

Flow Fit

One-time4
  • 5 Hints$0.99
  • 20 Hints$2.99
  • 20 Hints + Remove Ads$2.99
Show 1 more
  • MEGA Bundle + Remove Ads$3.99
10 purchases

Sumaddle

One-time10
  • Crafty, Pack 1$0.99
  • Crafty, Pack 2$0.99
  • Crafty, Pack 3$0.99
Show 7 more
  • Sneaky, Pack 1$0.99
  • Sneaky, Pack 2$0.99
  • Sneaky, Pack 3$0.99
  • Tricky, Pack 1$0.99
  • Tricky, Pack 2$0.99
  • Tricky, Pack 3$0.99
  • Puzzle Generator$9.99

Questions

Is Flow Fit free?
Flow Fit is free to download, with in-app purchases available.
Is Sumaddle free?
Sumaddle is free to download, with in-app purchases available.
Which has better reviews, Flow Fit or Sumaddle?
Sumaddle is rated higher. Flow Fit averages 4.8 out of 5 from 6.7K ratings, while Sumaddle averages 4.9 from 769 ratings.
Do Flow Fit or Sumaddle have ads?
Flow Fit shows ads; Sumaddle does not.
Which is updated more often, Flow Fit or Sumaddle?
Flow Fit ships an update every 2 months, and Sumaddle every 3 weeks. Most recently, Flow Fit was updated on November 3, 2026 and Sumaddle on November 3, 2026.

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