Comparison

Unfoldit vs Eureka

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

Head to head
About

Unfoldit

This app offers a unique puzzle experience where you visualize folding paper and predicting where holes will appear. It's designed to sharpen spatial reasoning, memory, and logic skills through over 1,800 levels. Enjoy brain training that fits into your day, with progress tracking and offline play.

Highlights
  • Visualize paper folds and hole punches
  • 1,885+ handcrafted levels
  • Hints and step-by-step animations
  • Strengthen focus and memory
  • Track stats for accuracy and speed
  • Offline play
  • iCloud sync across devices
Features
Read full description

BOOST YOUR BRAINPOWER WITH EVERY FOLD & PUNCH. Sharpen your spatial reasoning, short-term memory, and logic skills — one puzzle at a time. Unfoldit is the original brain training game of paper folding and hole punching, inspired by real cognitive assessments and enjoyed by thousands around the world. BRILLIANT VISUAL PUZZLES THAT WORK YOUR MIND. • Visualize folds and mentally unfold them to predict hole punches across 1,885+ handcrafted levels • Start easy and progress through expert-level puzzles with precision • Learn as you go — hints and step-by-step unfolding animations guide you • Strengthen focus, memory, and cognitive flexibility with each puzzle BASED ON REAL COGNITIVE SCIENCE. • Modeled after spatial reasoning and visual memory tests used in academia, research, and admissions • Gameplay designed to challenge and enhance short-term memory and attention • Used by students, professionals, and puzzle lovers alike TAP IT, UNFOLD IT, WIN IT. • Short levels are perfect for those in-between moments throughout your day • Play hundreds of free levels — no ads, no distractions BUILT FOR PLAY — AND FOR PROGRESS. • Track your stats for each level — accuracy, speed, and precision • Personalize your experience with light/dark mode and gameplay settings • Play offline anytime — on flights, subways, or in short breaks INTEGRATED WITH YOUR LIFE. • Sync progress and stats automatically with iCloud across iPhone, iPad, and Mac • Set optional daily reminders for encouragement to build a brain-training habit • Share level links with friends to challenge them to solve what you’ve mastered • Use Handoff to continue levels between devices for seamless gameplay • Use Siri Shortcuts to jump back into your next level instantly AWARD-WINNING & FEATURE-RICH. Unfoldit was a finalist in the 2019 Georgia Tech InVenture Prize invention competition. It's been refined for thoughtful minds, clever thinkers, and everyday geniuses. UNFOLD YOUR MIND. START TRAINING TODAY. Download Unfoldit now and join a global community of players improving their minds one fold at a time.

About

Eureka

This app offers over 50 mini-games designed to test and improve various cognitive skills like logic, memory, creativity, and focus. It provides a fun and challenging way to stimulate your brain and see if you can outsmart others.

Highlights
  • Over 50 mini-games
  • Tests logic, memory, creativity, speed
  • Improves focus and brain skills
  • Diverse and unique puzzles
  • Addictive brain challenge
Features
Read full description

If you think you are smart, think twice! Eureka is the right brain game to tell if you are a real genius! Featuring more than 50 mini-games to challenge your brain skills (logic, memory, creativity, speed, reflex, focus, etc.), Eureka is the addictive brain challenge your brain needs to go from dumb to genius. Are you up to the challenge? Eureka is full of brainteasers and fun mini-games that you can enjoy forever. Each brain game will be different from the previous, so you can enjoy original, creative and unique puzzles specifically designed to push your brain limits! Are you smarter than your friends are? Do you think outside the box? Can you pass more than 50 different brainy tricky mini-games? Eureka is the brain challenge you need! GAME FEATURES: • Diverse gameplay to keep your brain activated for hours • Each level is a different brain game • Simple to learn and easy to understand • Fun yet challenging brain challenge • Improve your focus and brain skills with diverse mini-games Accept the brain challenge and prove you have a creative mind! Infinity Games aims to provide the best game experience within its titles. We love showcasing new minimalist puzzle games and making people think while relaxing. Do you like our work? Connect below: Facebook: https://www.facebook.com/infinitygamespage Instagram: 8infinitygames (https://www.instagram.com/8infinitygames/)

Screenshots

Unfoldit4 screens
Eureka4 screens

Verdict

The call

The clearest difference is ads: Unfoldit at none against Eureka's shown. Unfoldit also leads on review sentiment (98% vs 77%) and rating (4.9 vs 4.7). On price, ratings volume, update cadence and in-app purchases 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. Unfoldit sells 7 one-off in-app purchases and Eureka 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

Unfoldit holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 607 and 513 respectively. Written reviews point the same way: 98% of Unfoldit's written reviews are positive against 77% of Eureka's.

UpkeepUpdate frequency

Unfoldit ships an update every 3 weeks, Eureka every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Unfoldit versus Eureka: the parameters behind the verdict, then further details
ParameterUnfolditEureka
PriceFreeFree
Rating4.9 (607 ratings) — better4.7 (513 ratings)
Positive reviews98.4% of reviews — better76.9% of reviews
Number of ratings607 — better513
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size9 MB140 MB
Age rating4+4+
DeveloperErudite Apps LLCINFINITY GAMES, LDA

Customer experience

Unfoldit

All ratings510 ratings
Positive98.4%
Neutral1.0%
Negative0.6%
Written reviews61 reviews
Positive98.4%
Neutral0.0%
Negative1.6%

Eureka

All ratings510 ratings
Positive91.6%
Neutral6.7%
Negative1.8%
Written reviews13 reviews
Positive76.9%
Neutral0.0%
Negative23.1%

User reviews

Unfoldit

From 607 App Store ratings

What we love

  • 👍 Solid puzzle game
  • 🧠 Challenges spatial reasoning
  • 💡 Innovative concept
  • 🎨 Beautiful and polished design
  • 🕰️ Addictive and engaging

Room to improve

  • 🐛 Occasional confusion with folding steps
  • 🤔 May be too challenging for some users

Eureka

From 513 App Store ratings

What we love

  • 🤩 Fun and engaging gameplay
  • 🧠 Challenges the mind
  • 👍 Kid-friendly
  • 😍 Addictive and immersive
  • 💯 Great for cognitive exercise

Room to improve

  • anúncios Ads are intrusive
  • 🗑️ Paid version still has ads
  • 🧩 Lacks variety in puzzles

Bugs and requests

Unfoldit

Reported bugs

2 issues
  • Difficulty differentiating old and new holes in some levels
  • Occasional freezing or crashing on certain devices

Requested features

3 requests
  • More advanced/difficult levels
  • Ability to track progress and achievements
  • Multiplayer or competitive modes

Eureka

Reported bugs

2 issues
  • Ads after every level
  • Paid version with ads

In-app purchases

7 purchases

Unfoldit

One-time7
  • Medium Levels$0.99
  • Tiny Hint Pack$0.99
  • Hard Levels$1.99
Show 4 more
  • Expert Levels$2.99
  • Small Hint Pack$3.99
  • Grande Hint Pack$9.99
  • Ream Master Hint Pack$19.99
1 purchases

Eureka

One-time1
  • Remove Ads$1.99

Questions

Is Unfoldit free?
Unfoldit is free to download, with in-app purchases available.
Is Eureka free?
Eureka is free to download, with in-app purchases available.
Which has better reviews, Unfoldit or Eureka?
Unfoldit is rated higher. Unfoldit averages 4.9 out of 5 from 607 ratings, while Eureka averages 4.7 from 513 ratings.
Do Unfoldit or Eureka have ads?
Eureka shows ads; Unfoldit does not.
Which is updated more often, Unfoldit or Eureka?
Unfoldit ships an update every 3 weeks, and Eureka every 4 weeks. Most recently, Unfoldit was updated on November 2, 2026 and Eureka on November 3, 2026.

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