Last updated on January 19th, 2026 at 04:41 pm
Circadia – Puzzle Game Review
Circadia is a Puzzle/Music game from Simple Machine, LLC, first launched in 18th February 2012.
It’s rated 4+ and currently has 10,600+ ratings on the App Store.
What Makes Circadia Stand Out
Tap dots and make all the rings hit the white dot at once.
Simple?
Sure, keep telling yourself that.
Try it and see for yourself.
STORY:
In 2011 Circadia was the first big hit game from Simple Machine, makers of Pop the Lock, Calculator: The Game, and –. Circadia went on to become a Starbucks App of the Week and gathered a bunch of great fans.
Try it and see how it inspired our path of making unique and innovative games.
And to our fans, ESPECIALLY the ones who downloaded Circadia way way back in the day. Thank you for supporting us and sticking with us. We love making games for you and will continue to!
This one is for you!
Hugs,
Team Simple Machine
This Puzzle game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, Circadia is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 26th June 2018
Recent improvements include:
This app has been updated by Apple to display the Apple Watch app icon.
Small tweaks and changes
Download & Availability
Circadia is available through the official App Store for iOS devices.
Requirements: Requires iPhone 5s / iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPhone 6 / iPhone 6 Plus / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 or later.
Compatible with iPhone and iPad devices.
Player Experience Highlights
Community Insight:
Better than a therapist! And we should know because we have 3 therapists.
Nice combination of Eye/hand coordination, logic, and timing.
A relaxing game that could be an operating system ,its brilli.
Therapeutic and challenging (: weird combination but they made it enjoyable.
Challenging, yet its so relaxing somehow. We guess thats because the easiest way to get through a level thats feels impossible is to let goa very addictive way to learn how to not let stress control you, but how to chill out and more intuitively find your own solutions in life , beyond this game. We love it.
We loveeee it soooooooooooooo much pd this game really tests your patience so if u dont like that then dont get this game. Other than that this game is good for your mind because you really have to think about your thinking (another word for that is metacognition) so yeah. – skitpineapple signing out.
We love this game, its so relaxing listening to two musical notes over until you get their sound waves to hit a white dot at the same time. Another name for this game could be zen notes, it gets us in meditative mind state.
This is a very fun and yet hard to play , it makes you think and calculate for each time you try to touch any of those. Circle. Is not like any other play app. Thanks again for providing this fun and challenging game. Thanks to designer/s.
We have enjoyed this for some time… The recent upgrade has revived our interest.
Also touch registration is iffy and pretty sure it doesn't have 120hz support.
Very time we open the app the game turns upside down we have to turn our tablet upside down to play, all we want to say but we like the game.
Cool concept and somewhat entertaining. The chords are pleasant anyway.
Thats the best puzzle app plus music game ever! PS its also good because you took away the ads.
First, we like to pay for a game if its not too expensive, and we can try it first. $2.99 is fine. We will not play a game with ads. Next, dont mind learning a game the hard way, e.g., no hints. Here, you get five free tries, then the game is locked. The goal of this game is to get the emanating lines of the circles to hit the dot at the same time. NOT just to get the dot within the circles. Our never-will-be-heard suggestion is to have a tutorial that includes more than one circle, or give enough free tries so a person can, um, play it once.
This is actually one of the worst games we played ever it doesnt make noise for us it has way to many hard levels it has just theres so much bad things about this game we recommend to not get this game we are being legit. Us am not that impressed or interested in the creators or the game it self!ME MAD!!!. Terrible game.
This was once one of the most beautifully simple games for iOS. They have now made it annoyingly monetized and completely ridden with ads. Don't update.
On iPad only works in one landscape mode, ios 11.4, and its not the one we prefer. When we open the game, it flips the screen. If not for that, we would like it a lot. Minimalistic, nice sounds,.
So excited to see this remade. And such a beautiful game we really dont mind replaying it again.
This was one of several games that prevented us from going from iOS 10 to iOS 11. So we were happy when the game update finally came. Our happiness was short lived. – buggy – can only play with phone in one of the two landscape orientations – all personal progress was erased when updating Boo. Deleting. Thanks for #%ing up a formerly great game.
We love this game, but we cant play it on iOS 11. Please update! We will buy it again.
First 20+ are easy. Gets more challenging a you go , very fun.
Play a lot, hard to win, so rewarding.
Highly challenging. It keeps getting harder, then you get the hang of it. And it gets easier but harder. Lol.
Very addictive app, but much more. Practicing Mindfulness and the Present, we take great pleasure in both as we visit Circadia. Our tension dissipates, our attention soars, and we think of little else but the musical motion before us. We work in Psychiatry and our patients also love our introducing them to relaxation.
Fun & soothing. Amazed it plays with no issues on our 1st gen iPad.
Love that you can change to audio to suit your tastes. Our son likes piano while we like the chimes. It is engaging but relaxing enough to sleep after playing, which is kind of the point, isn't it? Thanks for helping insomniacs everywhere.
Am loving it – yes, it's addictive, mentally and visually stimulating. One of the best Apps we have, and we have recommended it to many others.
Circadian provides a simple puzzle with simple rules wrapped in an elegant and beautifully austere interface. We recommend it to our friends. We play it often.
Nice game that is very challenging without being frustrating. Relaxes us. Really a nicely designed game.
Muy bueno pero muy pocos niveles.
We have played through this game multiple times and by the time we beat the last level, we can start from the beginning again feeling like it's a whole new game because it is so entertaining. Great way to pass time.
Neato! Challenging, simple yet not so easy towards upper levels.
One of the most intriguing games we have encountered. Very relaxing yet challenging. This game can drive to the brink of madness, but when you suceed, what a thrill it is! Very unique.Congrats to the developers and thanks.
This isn't a game of speed, it takes observational skills and precise timing to advance with this game. Something we thought we were pretty good at!, we're not as good as we thought;-(. It's a real challenge. You have to think about what you need to do to get to the next level. Have fun.
Simple but challenging. Love it.
Great puzzle for our family 'cause our mom is bad at it, she tried 23+ times.
Different, challenging, Different, FUN…well, that's what our kids say! Finally a game worth investing time in…each puzzle helps to explore new possibilities! FCF.
This game presents a new challenge. Tap on colored dots or tones so that the bands cross over the white dot at the same time. Great concept Its a lot of fun.
The fact that the white dot move also make this puzzle game quite exciting. Timing is everything in this game. So your brain have to time several variables to catch the white dot at the precise moment. Some time you just to smash the iPhone to the wall, so be aware of that and buy a nice cover. The levels get frustrating but they are not impossible. Give it a try! You won't regret.
Extremelly addictive game! Seems simple, but we can't stop playing! :).
Great app: challenging, soothing, fun…addicting.
We've never played anything like this; challenging and relaxing at the same time.
An unique puzzler with a great design. But for patient players only. It's kinda relaxing and slow paced game.
This game came from a really great idea. It's amazing.
This game is addicting and super fun to play.
Awesome! A fun game for bright chlidren.
We enjoy this whenever we pick it up to play and it always seems fresh somehow.
Simple elegant game, relaxing yet challenging.
The challenge seems beyond our ability, yet we're amazed at how powerfully intuition comes into play. (Being overly analytical will hold you back.) The design is beautifully realized, with elegantly refined visuals and meditative bell sounds. A unique creation.
You can play for 30 second, you can play for an hour, great game for folks who aren't so into games.
User feedback from Apple App Store
App Details
- Version: 2.1
- Size: 102.43 MB
- iOS: 8.0 or later
- Languages: EN
- Content Advisory:
- Developer: Simple Machine, LLC
Last updated: 26th June 2018 | Genre: Puzzle, Music | Developer: Simple Machine, LLC