Comparison

USB Simulator 2015 vs circloO

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

Head to head
About

USB Simulator 2015

Experience the frustratingly familiar challenge of inserting a USB stick. Test your patience and dexterity to master this common task. Compete with friends for high scores and achievements in this unique simulation game.

Highlights
  • Master USB insertion
  • Patience and dexterity challenge
  • Compete for high scores
  • Unlock achievements
  • Challenge friends
Features
Read full description

Who hasn't found themselves muttering under their breath in sheer frustration trying to insert a USB stick? Why does it never seem to go in the first time? Why do we second guess ourselves every time? Are we holding it the right way, which way is the right way? Well with USB Simulator 2015, you can finally master the art of USB stick insertion. But BE WARNED. This will not be easy. We could tell you simply line it up and shove it in. But we all know that never works. Only the most patient and steady of hand will be able to master this craft. Challenge friends and compete for insertion high scores and achievements. Let your friends and family know when you get it in. Let them rejoice with you. Good luck! ___________________________ USB Simulator 2015: Get it In! is brought to you by Fluik Entertainment, makers of wicked-fun mobile games such as Office Jerk, Plumber Crack, Streaker and Grumpy Bears. Follow @FluikGames on Twitter for awesome game announcements and other updates. NOTE: To help keep USB Simulator 2015: Get it In! awesome, please send any bug reports or complaints directly to us, instead of posting them in your app reviews. We can't respond directly to app reviews, so it's hard for us to help you with your problem or issue. You can post all your bugs or suggestions on the Facebook fan page, https://www.facebook.com/FluikEntertainment, or email them to us at support@fluik.com

About

circloO

A colorful physics platformer where you guide a ball through growing circular levels. Collect circles to expand the play area, strategically using and avoiding obstacles. Discover unique physics mechanics and enjoy a vast collection of player-created levels.

Highlights
  • Circular physics puzzles
  • Level editor
  • Player-created levels
  • Unique physics mechanics
  • Growing levels
  • Hard Mode levels
Read full description

circloO is a colorful physics platformer in a growing circle. This app version contains all levels from circloO and circloO 2, plus brand-new bonus levels! There's also a level editor and already over 10,000 levels created by players like you! You're a small ball rolling around in a round level. Collect circles to grow the level circle. As it grows, everything stays in the level, so you'll have to avoid and use obstacles in everchanging ways. For example, a platform that was first very useful to gain height, may prove to be a challenging obstacle after the level has grown! You can only move left and right, so you'll want to use features of the level carefully to jump and gain height. You'll discover all sorts of physics features, such as changing gravity, a sea of tiny blocks, strange contraptions and even planets with a gravity field. In challenging parts, you'll find yourself fully immersed, pressing the screen as hard as you can trying to get closer to finally collecting that next circle. But don't worry: you'll never have to start over a level, so you can always try again really quickly! And I can guarantee you'll feel amazing once you finally manage it! circloO Complete features: - Lots of cool physics features: ropes, pulleys, changing gravity and much more! I've included quite a few mechanics for you to discover. - Over 75 fun, growing, ever more challenging levels! Can you complete the six almost-but-not-quite-impossible Hard Mode levels? - There's also a level editor and an ever increasing number of player created levels! - All levels from circloO 2 and the original circloO, plus 28 brand-new levels! - Unique physics puzzles in each level. - Great music and sound effects by Stijn Cappetijn. - Minimalist and colorful graphics. - The game will take most players three to five hours to complete. Level times are saved, so you can try to beat your own highscores and speedrun levels after that! Plus there are thousands of player-created levels to continue playing forever! - Relaxing yet challenging physics puzzle platforming fun! I'm very happy that circloO 2 on the web won the first Crazy Games developer contest out of 200 contestants! It was also third in the Kongregate contest of November 2018. You may remember it from CoolMath Games as well. Reviews: "It’s an excellent game that has a very playful and chilled out approach to the gameplay, whilst also featuring some wonderfully intricate level design. A very impressive puzzle platformer you’ll really want to roll with. Highly recommended." - Free Game Planet "The difficulty scales upwards nicely and you're constantly rewarded for learning new skills as these always come up in future levels." - Jayisgames The game contains occasional ads after a level, which can be removed with a one-time in-app purchase, which supports development as well. Have fun and I'm happy to hear what you think!

Screenshots

USB Simulator 20153 screens
circloO4 screens

Verdict

The call

The clearest difference is review sentiment: circloO at 89% against USB Simulator 2015's 37%. circloO also leads on rating (4.8 vs 3.3) and update cadence (every 2 months vs every 11 months). On price, ads, 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. USB Simulator 2015 sells 2 one-off in-app purchases and circloO 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

circloO holds the better App Store score, 4.8 against 3.3. That said, the two scores are not equally well evidenced: circloO has 2.4K ratings behind it against 49, so its average is the more settled of the two. Written reviews point the same way: 37% of USB Simulator 2015's written reviews are positive against 89% of circloO's.

UpkeepUpdate frequency

USB Simulator 2015 ships an update every 11 months, circloO every 2 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
USB Simulator 2015 versus circloO: the parameters behind the verdict, then further details
ParameterUSB Simulator 2015circloO
PriceFreeFree
Rating3.3 (49 ratings)4.8 (2.4K ratings) — better
Positive reviews36.6% of reviews89.5% of reviews — better
Number of ratings492.4K — better
Update frequencyEvery 11 monthsEvery 2 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.010 — better
Further details — not scored
Size93 MB63 MB
Age rating4+4+
DeveloperFluikFlorian van Strien

Customer experience

USB Simulator 2015

All ratings49 ratings
Positive57.1%
Neutral6.1%
Negative36.7%
Written reviews41 reviews
Positive36.6%
Neutral7.3%
Negative56.1%

circloO

All ratings2,357 ratings
Positive96.9%
Neutral1.4%
Negative1.7%
Written reviews133 reviews
Positive89.5%
Neutral3.0%
Negative7.5%

Bugs and requests

USB Simulator 2015

Not enough reviews yet to summarise bugs or requests.

circloO

Reported bugs

2 issues
  • Glitches with level progression
  • Inconsistent touch/click registration

Requested features

4 requests
  • More levels and content updates
  • Character customization options
  • Improved level editor tools
  • Difficulty settings or options

In-app purchases

2 purchases

USB Simulator 2015

One-time2
  • Gold USB$0.99
  • No Ads$0.99
1 purchases

circloO

One-time1
  • Remove Ads$2.99

Questions

Is USB Simulator 2015 free?
USB Simulator 2015 is free to download, with in-app purchases available.
Is circloO free?
circloO is free to download, with in-app purchases available.
Which has better reviews, USB Simulator 2015 or circloO?
circloO is rated higher. USB Simulator 2015 averages 3.3 out of 5 from 49 ratings, while circloO averages 4.8 from 2.4K ratings.
Do USB Simulator 2015 or circloO have ads?
Both USB Simulator 2015 and circloO show ads.
Which is updated more often, USB Simulator 2015 or circloO?
USB Simulator 2015 ships an update every 11 months, and circloO every 2 months. Most recently, USB Simulator 2015 was updated on September 30, 2026 and circloO on October 2, 2026.

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