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NineGaps

NineGaps

by Quadion Technologies LLC

11 ratings
109 reviews
🎮 Games
🧩 Puzzle
Free

Details

  • Released
  • Updated
  • May 28, 2009
  • November 21, 2018

Features

Developer

Quadion Technologies LLC
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NineGaps screenshot #1 for iPhone
NineGaps screenshot #2 for iPhone
NineGaps screenshot #3 for iPhone
NineGaps screenshot #4 for iPhone
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Reviews summary↘︎
⭐109
Reviews↘︎
📝2+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
🏆3 achievements
Achievements↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This is a challenging puzzle game where you place numbers 1-9 into gaps, matching operations. It offers a unique twist on number puzzles with multiple difficulty levels and endless replayability.

✓Unique puzzle gameplay
✓Cute graphics
✓5 difficulty levels
✓Unlimited puzzles
✓Leaderboards and achievements
✓GameCenter integration
Show original description

What users say

Summarized from real user reviews of NineGaps. Based on 11 reviews and a 4.1/5 average, it highlights the 10 positives and 9 negatives reviewers mention most about this game.

Positive things

  • 🧠Excellent brain training and mental math improvement
  • 🎮Simple yet challenging gameplay mechanics
  • 🎨Clean, polished, and attractive visual design
  • ⏱️Quick games perfect for short waiting periods
  • 👨‍👩‍👧‍👦Suitable for multiple age groups and skill levels
  • 🎯Multiple difficulty levels (easy, medium, hard)
  • 💰Great value for the price
  • 🧩Unique puzzle concept combining logic and math
  • 🚀Smooth and bug-free performance
  • 😄Satisfying audio feedback on correct answers

Negative things

  • 🔊Loud sound effects that cannot be controlled properly
  • 💾No game saving feature when closing app
  • 🧮Does not follow proper order of operations (PEMDAS)
  • 🔴Occasional crashes or app not opening
  • 🎮Limited replay value after extended play
  • 🔧Sound settings don't persist between sessions
  • 👁️Difficulty distinguishing selected pieces during gameplay
  • 🚫Incorrect answer detection (false negatives reported)
  • 📊No user account or persistent high score tracking
See all reviews

What's New in NineGaps

1.6

November 21, 2018

We've refreshed our app to be back in the store and work again with newer devices and iOS. We hope you enjoy NineGaps!

More

User reviews

Most RecentHighest RatedLowest Rated

Unmatched simple brilliance

If you're pretty good at math, this is a game that's beautifully challenging and beautiful to look at as well. Perfection.
Stangster1Stangster1

Very disappointing.

This app is very disappointing! I bought it in the hope that it would help me to become quicker at mental arithmetic, but this app is wrong! It tells me I'm wrong when I know I am right!!
I don't know whether this app is faulty or a scam, but it's definitely not worth the 69p! Doesn't even deserved any stars but I have to put one cause then it won't let me write a review!!
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CherylD93CherylD93

Good time pass

Small game but a nice time pass...not as tough as a sudoku.
Abe SamAbe Sam

Nine gaps

Challenging fun. One of my favorites.
RDu4RDu4

Awesome game!

Love the new hint button!
pablin bpablin b
See 104 more reviews

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User experience

🐞

Reported Bugs

7 issues

Sound effects stop working intermittently

Bug

App crashes or fails to open on launch

Bug

Sound volume settings not saving between sessions

Bug

OpenFeint achievements not awarding properly

Bug

Mathematical calculation errors in some puzzles

Bug

Unsolvable puzzle generation reported

Bug

Incorrect answer validation (marking correct answers as wrong)

Bug
✨

Requested Features

14 requests

Solution/reveal button to show answers when stuck

Feature

Hint system for difficult puzzles

Feature

Game auto-save functionality

Feature

Persistent sound settings across sessions

Feature

Global leaderboards for competition

Feature

Multiplayer mode or WiFi challenges

Feature

Larger grids (4x4, 5x5) for increased difficulty

Feature

Puzzle numbering system for tracking progress

Feature

Ability to view completed games

Feature

Confirmation dialog before resetting high scores

Feature

Brackets/parentheses support in equations

Feature

Higher difficulty levels for advanced players

Feature

More game modes and variations

Feature

Improved color contrast for colorblind users

Feature

FAQ

What is NineGaps?

NineGaps is a highly addictive and tricky puzzle game. The goal is to use your wits to place numbers from 1 to 9 in the missing gaps, while matching the operations presented in the puzzle. It's described as a unique twist on Sudoku.

What are the key features of NineGaps?

Key features include simple and unique puzzle-based gameplay, cute graphics, 5 difficulty levels, unlimited puzzles, global and friend leaderboards, achievements, and GameCenter integration.

How much does NineGaps cost?

Based on the provided information, the app is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase model.

What kind of puzzles does NineGaps offer?

The game features number puzzles where players place digits 1 through 9 into designated gaps. These placements must satisfy specific mathematical operations presented within the puzzle grid, similar to Sudoku but with a different mechanic.

Who would enjoy playing NineGaps?

Fans of Sudoku, KenKen, and TwentyFour will likely enjoy NineGaps. It's also great for all ages, whether you want a math refresher or a fun way to teach kids math skills, as it tests puzzle-cracking skills.