Welcome to Number Fill, puzzle fans, where you can play classic number fill-in puzzles on your mobile device! Choose from 5x5, 11x11 or 19x19 (or 5 other sizes available with purchase). The grid will be filled with blank spaces and it is your job to use logic to figure out how to put the given numbers into the grid so they all fit. It's like a crossword puzzle, but with numbers instead of words.

Don't worry - if you get stuck you can ask for a hint or you can make a guess about where a number should go. You will receive immediate feedback as to whether you were right or not. Finish the puzzle in the fewest moves possible, then challenge your friends to beat your best.

To play, press one of the numbers below the play field, then touch the square in the puzzle field to place it.

What's New

Version 3.1

- Fixes a memory-related crash specific to older devices
- Puzzle size 25 now included at no additional cost

Ratings and Reviews


Fantastically easy and hard all at the same time!

So many options and levels of difficulty, I love playing this app while on the airplane, waiting to see the doctor, and any other time that I need to be entertained while waiting. If you love logic puzzles, this is for you. I would love to see a word fill in option next!


Fill It In Crosswords misleading

They charge for each feature separately under options. i.e. puzzle size, backgrounds, no ads. You don't know until after you have purchased an upgrade, because you want a bigger puzzle and then try to change backgrounds. At that point message to purchase that upgrade appears (this is second purchase). Then you try to change background and message to purchase the upgrade appears (if chosen, third purchase). I didn't make a third purchase.


Good app but

I hate how I have to check the no ads box every time I open the app. I paid for no ads and I want NO ADS! Also the random option doesn't work. Whenever I set the puzzle size to random and press new game, the app closes.


Clinton H Weir
13.2 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2015 Clinton Weir
In-App Purchases
  1. Number Fill Free: Size 17 puzzles $0.99
  2. Number Fill S: All Sizes $4.99
  3. Number Fill S: Size 13 puzzles $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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