Round and Round vs Alien Slime
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Round and Round
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An Action-Packed Time Killer! -- Game Description -- In this action-packed game, a colossal sun devours countless planets! You take control of a UFO and must leap between planets to avoid being engulfed by the approaching sun! Land on planets of the same color continuously to increase your score with every combo. Aim for high scores and climb to the top of the world rankings! -- How to Play -- Press the jump button to launch the UFO from a planet. Avoid being swallowed by the sun by leaping to different planets. Keep landing on planets of the same color to build up your combo and earn varying points based on your combo count. Compete with players worldwide and aim for the highest rank in the rankings! -- Instructions -- 1. Press the jump button to launch the UFO from a planet's surface. 2. Avoid the sun's relentless pursuit by leaping to different planets. 3. Landing on planets of the same color will trigger a combo, leading to score boosts. 4. The higher your score and combo count, the better your ranking on the global leaderboard. Get Ready to Escape the Solar Onslaught! --items-- pow_red:size up. pow_blue:speed up. pow_yellow:speed down. pow_green:bonus time.
Alien Slime
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Can you save the Solar System by stopping the aliens from sliming the planets? Alien Slime is fun for the whole family. "This app is very funny and fun to play!" "This app is great! Everyone should get it!" Objective: Save the Solar System by stopping the aliens from sliming the planets. To stop the aliens use your laser cannon to shoot the UFOs. If you hit a UFO, it will explode and you will get 50 points for each ufo you hit. You will lose 25 points for each UFO that flies off the screen without getting hit. 7 Skill Levels to choose from! To win, complete all the levels to save the Solar System. 100 points will be deducted for each planet that gets slimed. If 3 planets get slimed in any level, you loose. Enjoy! * If you like this app, please write a review and also share this app with your friends on social media. Thank you. ** If you are experiencing technical problems with this app, or if you have ideas on how to make this app better, please contact us by pressing the "App Support" button located in the Information screen. Thank you.
Screenshots
Verdict
The clearest difference is price: Round and Round at Free against Alien Slime's $0.99. Round and Round also leads on update cadence (weekly vs every 14 months) and iOS requirement (11.0 vs 16.0). Alien Slime's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Round and Round is free to download; Alien Slime costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Round and Round ships an update weekly, Alien Slime every 14 months. The most recent releases landed on October 27, 2026 and September 25, 2026 respectively.
| Parameter | Round and Round | Alien Slime |
|---|---|---|
| Price | Free โ better | $0.99 |
| Update frequency | Weekly โ better | Every 14 months |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 11.0 โ better | 16.0 |
| Further details โ not scored | ||
| Size | 43 MB | 13 MB |
| Age rating | 4+ | 9+ |
| Developer | U-WORKS inc | JS Digital Productions, Inc. |
In-app purchases
Round and Round
No in-app purchases
Alien Slime
No in-app purchases
Questions
Is Round and Round free?
Is Alien Slime free?
Do Round and Round or Alien Slime have ads?
Which is updated more often, Round and Round or Alien Slime?
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