Comparison

Atomas vs Pi

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

Head to head
About

Atomas

Combine atoms to create new elements in this addictive puzzle game. Strategize to prevent your universe from overflowing and unlock special charms to aid your progress. Compete with friends for the highest score.

Highlights
  • Atom fusion mechanics
  • Element creation
  • Chain reactions
  • Lucky charms
  • Multiple game modes
  • Score comparison
Features
Read full description

Atomas is a fascinating puzzle game, which you can learn in seconds but will entertain you for weeks. The perfect game for your spare time! Your little universe starts with hydrogen atoms only but with the help of the energy rich plus atoms you are able to fusion two hydrogen atoms into one helium atom, 2 helium atoms into one lithium atom and so on. Your primary goal is to create the valuable elements like Gold, Platinum and Silver. But watch out, if your universe is overfilled with too many atoms it will cause a big crunch and the game is over. One way to prevent this is to build up long symmetries in your atoms and start big chain reactions. From time to time minus atoms appear, use them for absorbing and replacing atoms within your universe or sacrifice them for a plus atom. You see Atomas is not hard to play, but if you want to get to the top you'll need a good strategy, which keeps your atoms organized. By creating new elements like oxygen or copper you unlock lucky charms, which effect the game in various ways and adjust it to your strategy. What Atomas offers you: - 4 different game modes - simple but addicting game mechanics - 124 different atoms to create - 12 different lucky charms - exciting challenges - compare your scores with friends via GameCenter - share your score on twitter and Facebook - quick tutorial The developers high score is 66 534. Can you do better?

About

Pi

Enhance your Pi memorization with this app. Features include writing your own "Piem," voice mode for reciting digits, performance statistics, and sound effects. Challenge friends and track your progress.

Highlights
  • Write your own Piem
  • Voice mode for reciting digits
  • Performance statistics
  • Sound effects for memorization
  • Game Center integration
  • Challenge friends
Features
Read full description

Pi - The Game is the #1 Pi app on the App Store! Improve your Pi memorization skills by using effective features introduced in the app including: - Write your own Piem - Use Voice mode to read out the digits out loud - View statistics on your performance to track your progress - Sound effects to help you memorize the digits - Reverse button order - Full Game Center integration - Challenge friends to beat your high score Subscription terms: - The subscription auto-renews at the end of each term. - Payment will be charged to iTunes Account at confirmation of purchase. - The subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period. - You may manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Privacy policy and Terms of Use: https://applorium.com/privacy-pi-game

Screenshots

Atomas4 screens
Pi3 screens

Verdict

The call

The clearest difference is update cadence: Atomas at monthly against Pi's every 3 months. Atomas also leads on iOS requirement (9.0 vs 15.0). On price, rating, review sentiment and ratings volume 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. Atomas sells 5 one-off in-app purchases and Pi sells 6 in-app purchases, starting at $3.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Atomas against 4.7 for Pi. Both are backed by a comparable volume of ratings — 3.4K and 1.7K respectively. Written reviews are what separate them: 94% of Atomas's written reviews are positive against 90% of Pi's.

UpkeepUpdate frequency

Atomas ships an update monthly, Pi every 3 months. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 8 level
Atomas versus Pi: the parameters behind the verdict, then further details
ParameterAtomasPi
PriceFreeFree
Rating4.8 (3.4K ratings) — better4.7 (1.7K ratings)
Positive reviews93.9% of reviews — better90.4% of reviews
Number of ratings3.4K — better1.7K
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size33 MB9 MB
Age rating4+4+
DeveloperMax GittelApplorium Ltd

Customer experience

Atomas

All ratings3,385 ratings
Positive96.7%
Neutral1.9%
Negative1.4%
Written reviews1,469 reviews
Positive93.9%
Neutral3.5%
Negative2.5%

Pi

All ratings1,724 ratings
Positive92.8%
Neutral3.5%
Negative3.7%
Written reviews156 reviews
Positive90.4%
Neutral2.6%
Negative7.1%

User reviews

Atomas

From 3.4K App Store ratings

What we love

  • 🚀 Addictive gameplay
  • 👍 Simple and intuitive
  • 🔒 No ads or in-app purchases
  • 🧠 Helps learn periodic table
  • 🎨 Polished and visually appealing

Room to improve

  • 🐛 Occasional glitches and bugs
  • 🤔 Difficulty can feel arbitrary at times
  • 🎨 Similar atom colors can be confusing
  • 🔍 Lack of clear tutorials or explanations

Pi

From 1.7K App Store ratings

What we love

  • 🚀 Great memorization tool
  • 👍 Simple and intuitive interface
  • 💡 Customizable features (e.g., column count)
  • 🥳 Engaging and fun way to learn pi
  • 🎉 Helps users achieve impressive results quickly

Room to improve

  • 🔒 Premium features locked behind paywall
  • 🐛 Occasional crashes and bugs
  • 📢 Frequent review prompts can be annoying
  • 🔍 Leaderboard and achievements not always accurate

Bugs and requests

Atomas

Reported bugs

3 issues
  • Undo button not working as expected
  • Game crashing when sharing scores
  • Inconsistent atom behavior with certain power-ups

Requested features

4 requests
  • More game modes and challenges
  • Ability to save progress and sync across devices
  • Option to adjust atom colors and sizes
  • Achievements and leaderboards

Pi

Reported bugs

3 issues
  • Leaderboard and achievements not updating correctly
  • Interface issues after certain actions (e.g., unable to exit training mode)
  • Purchases not always unlocking premium features

Requested features

4 requests
  • Voice recognition mode
  • Tolerance for minor mistakes
  • Support for other mathematical constants
  • Dark mode option

In-app purchases

5 purchases

Atomas

One-time5
  • No Ads & Instant Modes Unlock$0.99
  • 2 Antimatter$1.99
  • 5 Antimatter$2.99
Show 2 more
  • 10 Antimatter$4.99
  • 12 Antimatter$4.99
6 purchases

Pi

Subscriptions1
  • Pi - The Game Pro$3.991 Year
One-time5
  • Slice of Pie$3.99
  • Upgrade$3.99
  • Pi - The Game Pro$4.99
Show 2 more
  • Half a pie$14.99
  • A Whole pie$29.99

Questions

Is Atomas free?
Atomas is free to download, with in-app purchases available.
Is Pi free?
Pi is free to download, with in-app purchases available.
Which has better reviews, Atomas or Pi?
Atomas is rated higher. Atomas averages 4.8 out of 5 from 3.4K ratings, while Pi averages 4.7 from 1.7K ratings.
Do Atomas or Pi have ads?
Neither Atomas nor Pi shows ads.
Which is updated more often, Atomas or Pi?
Atomas ships an update monthly, and Pi every 3 months. Most recently, Atomas was updated on September 25, 2026 and Pi on September 24, 2026.

Other comparisons