Comparison

Hashi vs Puzzle IO

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

Head to head
About

Hashi

Connect islands by drawing bridges based on the number of connections each island requires. This logic puzzle game offers a challenging yet accessible experience for all ages, sharpening cognitive skills with unique puzzles updated weekly.

Highlights
  • Connect islands with bridges
  • Logic-based puzzles
  • 200+ free puzzles
  • Weekly bonus puzzle
  • Multiple difficulty levels
  • Unlimited undo/redo
  • Highlighting options
Features
Read full description

Connect bridges between islands to form one interconnecting path! Hashi are addictive bridge-connecting puzzles which were invented in Japan. Using pure logic and requiring no math to solve, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages. Each puzzle is based on a rectangular arrangement of circles, where each circle represents an island and the number in each island tells how many bridges are connected to it. The object is to connect all islands according to the number of bridges so that there are no more than two bridges in the same direction and all bridges are interconnected enabling passage from any island to another. To create a bridge simply swipe your fingertip between two islands. The game also features highlighting options, helping see in which directions bridges are allowed and whether an island segment is about to become isolated. To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format. For more fun, Hashi contains no ads and includes a Weekly Bonus section providing an extra free puzzle each week. PUZZLE FEATURES • 200 free Hashi puzzles • Extra bonus puzzle published free each week • Multiple difficulty levels from very easy to extremely hard • Grid sizes up to 24x32 • Puzzle library continuously updates with new content • Manually selected, top quality puzzles • Unique solution for each puzzle • Hours of intellectual challenge and fun • Sharpens logic and improves cognitive skills GAMING FEATURES • No ads • Unlimited check puzzle • Optional bridge error warning during gameplay • Unlimited Undo and Redo • Highlight allowed bridge directions • Highlight bridge segments • Concurrently playing and saving multiple puzzles • Puzzle filtering, sorting and archiving options • Dark Mode support • Graphic previews showing puzzles progress as they are being solved • Portrait and landscape screen support (iPad only) • Track puzzle solving times • Backup & restore puzzle progress to iCloud ABOUT Hashi have also become popular under other names such as Bridges, Chopsticks and Hashiwokakero. Similar to Sudoku, Kakuro and Slitherlink, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.conceptispuzzles.com/index.aspx?uri=info/doc/220

About

Puzzle IO

Experience a modern, fast-paced logic puzzle game based on binary Sudoku. Fill grids with 0s and 1s following specific rules, earn bonuses with a smart point system, and compete globally. Offers endless challenges across six difficulty levels.

Highlights
  • Fill 10x10 grids with 0s and 1s
  • Equal 0s and 1s per row/column
  • No three identical numbers in a row
  • Smart point system with bonuses
  • Time-based multipliers for higher scores
  • Game Center support and global leaderboards
  • Six difficulty levels
  • Unlimited unique puzzles
Features
Read full description

Addictive Logic Fun! Looking for a fresh take on Sudoku? Puzzle IO brings you a modern, fast-paced, and highly addictive logic puzzle experience! Easy to learn, hard to master! * Fill each 10x10 grid with 0s and 1s * Each row and column must have an equal number of 0s and 1s * No three identical numbers in a row! Think fast, score big! * Smart point system: Earn bonuses by solving grids efficiently! * Time-based multipliers: Solve puzzles quickly for higher scores! * Game Center support: Compete with friends and climb the global leaderboards! Endless Challenges! * Six difficulty levels: Unlock harder modes as you improve! * Unlimited unique puzzles: No two grids are the same! * Clean, modern design: Smooth animations & intuitive controls! Ready to train your brain? Download Puzzle IO - Binary Sudoku now and start playing!

Screenshots

Hashi4 screens
Puzzle IO4 screens

Verdict

The call

The clearest difference is ads: Hashi at none against Puzzle IO's shown. Hashi also leads on review sentiment (94% vs 74%) and rating (4.9 vs 4.6). Puzzle IO's advantage is update cadence (every 3 weeks vs every 4 months) and iOS requirement (13.0 vs 15.6). On price, ratings volume, 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. Hashi sells 10 one-off in-app purchases and Puzzle IO sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Hashi holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 1K and 362 respectively. Written reviews point the same way: 94% of Hashi's written reviews are positive against 74% of Puzzle IO's.

UpkeepUpdate frequency

Hashi ships an update every 4 months, Puzzle IO every 3 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 5 level
Hashi versus Puzzle IO: the parameters behind the verdict, then further details
ParameterHashiPuzzle IO
PriceFreeFree
Rating4.9 (1K ratings) — better4.6 (362 ratings)
Positive reviews94.4% of reviews — better74.3% of reviews
Number of ratings1K — better362
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size8 MB107 MB
Age rating4+4+
DeveloperConceptis Ltd.99 Up Games

Customer experience

Hashi

All ratings1,017 ratings
Positive98.3%
Neutral0.9%
Negative0.8%
Written reviews463 reviews
Positive94.4%
Neutral1.9%
Negative3.7%

Puzzle IO

All ratings348 ratings
Positive92.2%
Neutral3.7%
Negative4.0%
Written reviews214 reviews
Positive74.3%
Neutral7.9%
Negative17.8%

User reviews

Hashi

From 1K App Store ratings

What we love

  • 👍 Intuitive and easy to use
  • 🔒 No intrusive ads
  • 🚀 Smooth gameplay and controls
  • 💡 Variety of difficulty levels
  • 👍 Clean and well-designed interface

Room to improve

  • 💰 Expensive for additional puzzle packs
  • 🐛 Occasional bugs or glitches
  • 💡 Lack of a bookmark/save feature for harder puzzles

Puzzle IO

From 362 App Store ratings

What we love

  • 👍 Simple mechanics
  • 👍 Easy to play one-handed
  • 👍 Different difficulty modes
  • 👍 Guess function if you're not sure of your options
  • 👍 Fun and requires the right level of brain power while not being too difficult

Room to improve

  • 🐛 Hint function is not very useful
  • 🐛 'Watch video' for hints doesn't work on the paid ad-free version
  • 🔋 High battery consumption
  • 💸 Too many ads and long ad breaks
  • 🐛 Incorrect error detection on completed rows/columns

Bugs and requests

Hashi

Reported bugs

3 issues
  • App sometimes crashes or freezes
  • Accidental bridge drawing due to sensitivity issues
  • Puzzle progress not saving properly

Requested features

3 requests
  • More free puzzles or content updates
  • Ability to save/bookmark progress on harder puzzles
  • Hint system or tutorial for learning the game

Puzzle IO

Reported bugs

4 issues
  • Incorrect error detection on completed rows/columns
  • Frequent crashes and bugs
  • Game sometimes freezes or becomes unresponsive
  • Ads not loading properly, preventing gameplay

Requested features

5 requests
  • Dark mode option
  • Better hint system that explains the logic
  • Option to turn off row/column completion notifications
  • More challenging puzzle levels
  • Ability to create and save custom puzzles

In-app purchases

10 purchases

Hashi

One-time10
  • Hard Snacks 1$0.99
  • Easy Variety 1$1.99
  • Medium Variety 1$1.99
Show 7 more
  • Hard Variety 1$1.99
  • Easy Variety 2$1.99
  • Medium Variety 2$1.99
  • Hard Variety 2$1.99
  • Medium Variety 3$1.99
  • Hard Variety 3$1.99
  • Big & Tough 1$1.99
1 purchases

Puzzle IO

One-time1
  • Remove Ads$2.99

Questions

Is Hashi free?
Hashi is free to download, with in-app purchases available.
Is Puzzle IO free?
Puzzle IO is free to download, with in-app purchases available.
Which has better reviews, Hashi or Puzzle IO?
Hashi is rated higher. Hashi averages 4.9 out of 5 from 1K ratings, while Puzzle IO averages 4.6 from 362 ratings.
Do Hashi or Puzzle IO have ads?
Puzzle IO shows ads; Hashi does not.
Which is updated more often, Hashi or Puzzle IO?
Hashi ships an update every 4 months, and Puzzle IO every 3 weeks. Most recently, Hashi was updated on November 6, 2026 and Puzzle IO on November 2, 2026.

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