Comparison

Flow Fill vs Gridtopia Nonogram

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

Head to head
About

Flow Fill

Features
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Draw. Connect. Fill. Can you complete the board? Flow Fill is a colour path puzzle game where you draw lines to connect dots and fill every single cell on the grid. Simple rules. Deep challenge. Endless satisfaction. One path per color. Every cell must be filled. No overlaps. No gaps. No excuses. The moment that last cell snaps into place is one of the most satisfying feelings in mobile gaming. Thousands of players call it their go-to stress relief, and once you start, you will understand exactly why. โ€• HOW TO PLAYโ€• Draw a path from each colored dot across the grid. Every path must reach its exact length. Fill the entire board without any empty cells. Paths cannot cross or overlap. Walls add an extra layer of challenge as you progress. That is the whole game. No tutorial needed. Pick it up in seconds and play it for years. โ€• WHY YOU WILL LOVE FLOW FILLโ€• No timer. No lives. No pressure. Play at your own pace, think at your own speed, and enjoy every single move. Whether you have two minutes on the bus or two hours on the sofa, Flow Fill fits your life perfectly. Every level has exactly one perfect solution. There is no luck involved โ€” only logic, planning, and that deeply rewarding moment when everything clicks. Start with gentle 5x5 grids that ease you in. Progress through increasingly complex 7x7, 8x8, 9x9, and 10x10 boards packed with walls and winding routes that will genuinely test your spatial thinking. The difficulty curve is designed to keep you in the flow state โ€” always challenged, never frustrated. Hundreds of levels are waiting. New ones are added with every update. You will never run out of puzzles. โ€• PERFECT FORโ€• โ€ข Fans of Flow Free, Unblock Me, Sudoku, and number puzzle games โ€ข Anyone who loves logic games, brain teasers, and grid puzzles โ€ข People looking for a calm, mindful, and genuinely relaxing game โ€ข Commuters, students, and anyone who wants a quick daily mental workout โ€ข Kids and adults of all ages โ€” the rules are simple, the depth is real โ€• THE BRAIN GAME THAT DOES NOT FEEL LIKE WORKโ€• Most brain training apps feel like homework. Flow Fill feels like play. It exercises your spatial reasoning, forward planning, and logical thinking without ever feeling like a chore. Play it while listening to music, winding down at night, or filling a spare five minutes in your day. Your brain will thank you. Your stress levels will drop. Your puzzle completion streak will grow. Download Flow Fill free today. Your first perfect solve is one tap away. Flow Fill โ€” Color Path Puzzle Game โ€” Logic Puzzle โ€” Brain Teaser โ€” Connect Colors โ€” Fill the Grid โ€” Flow Game โ€” Path Puzzle โ€” Pipe Puzzle โ€” Offline Puzzle โ€” Relaxing Game โ€” Mind Game โ€” Dot Connect โ€” Color Connect โ€” Grid Puzzle

About

Gridtopia Nonogram

Features
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Welcome to Gridtopia โ€” a world you uncover one dig at a time. Every puzzle is a buried dig site. Read the number clues down each column and across each row, chip away at stone, sand, wood, and bedrock, and reveal the hidden treasure beneath. Solve the logic, claim the world. DIG ACROSS 40+ WORLDS Far beyond black & white โ€” uncover vibrant pictures painted in one, two, or three colors, and travel from one themed world to the next. Unlock skins to make every dig site your own. 1,100+ LEVELS, ONE SOLUTION EACH Every level is verified to have a single, logical solution. solvable by pure reasoning. No guessing, ever. CONNECT THE PATH Try a mini game on the way! Connect the broken path and find the way to continue your journey. RESTORE YOUR TOTEMS AND RESTORE Clear a world to unearth its unique treasure for your Totem Room, then bring it back to life in a relaxing match-3 restoration mini-game. HELPERS WHEN YOU'RE STUCK Hit a tricky dig? Hints and boosts keep you moving progress without the frustration. PLAY ANYWHERE Intuitive tap controls, auto-save, and 100% offline play. No internet required. Grab your pickaxe. Start digging. Build your Gridtopia.

Screenshots

Flow Fill4 screens
Gridtopia Nonogram4 screens

Verdict

The call

The clearest difference is in-app purchases: Flow Fill at none against Gridtopia Nonogram's 6. Flow Fill also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Gridtopia Nonogram's advantage is update cadence (every 5 days vs every 3 weeks). On price and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Gridtopia Nonogram sells 6 one-off in-app purchases. Flow Fill asks for nothing beyond the download.

UpkeepUpdate frequency

Flow Fill ships an update every 3 weeks, Gridtopia Nonogram every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences ยท 2 level
Flow Fill versus Gridtopia Nonogram: the parameters behind the verdict, then further details
ParameterFlow FillGridtopia Nonogram
PriceFreeFree
Update frequencyEvery 3 weeksEvery 5 days โ€” better
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS13.0 โ€” better15.0
Further details โ€” not scored
Size61 MB49 MB
Age rating4+4+
DeveloperFGTP LabsILTAE KIM

In-app purchases

None

Flow Fill

No in-app purchases

6 purchases

Gridtopia Nonogram

One-time6
  • Coin Pouch$0.99
  • Starter Pack$1.99
  • Coin Sack$2.99
Show 3 more
  • Booster pack$2.99
  • Coin chest$9.99
  • Mega Pack$14.99

Questions

Is Flow Fill free?
Flow Fill is free to download, with no in-app purchases.
Is Gridtopia Nonogram free?
Gridtopia Nonogram is free to download, with in-app purchases available.
Do Flow Fill or Gridtopia Nonogram have ads?
Gridtopia Nonogram shows ads; Flow Fill does not.
Which is updated more often, Flow Fill or Gridtopia Nonogram?
Flow Fill ships an update every 3 weeks, and Gridtopia Nonogram every 5 days. Most recently, Flow Fill was updated on October 24, 2026 and Gridtopia Nonogram on October 25, 2026.

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