Underisland vs Rocket Betsy
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Underisland
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Descend into the Skull Cave. Claim the Artifact. Survive the Unknown. Welcome to a magical island shrouded in mystery and danger. At its heart lies an enormous cave carved in the shape of a colossal skull โ an ancient place whispered about in legends. Deep within it rests a powerful artifact with unknown properties, capable of changing the fate of the world. You are the only one brave enough to enter. Prepare for a fast-paced roguelike action adventure where every run is different, every decision matters, and survival is never guaranteed. Roguelike Action at Its Core Each expedition into the Skull Cave is a unique experience. Enemies, skills, and challenges change every run, forcing you to adapt, experiment, and master the chaos. Defeat means starting over โ but stronger, wiser, and better prepared. โ Create Your Own Skill Builds Build your hero your way. Choose from a wide variety of skills during each run and combine them into powerful, creative builds: โข High-damage glass cannons โข Tanky survivors โข Quick miner โข Balanced No two builds are the same, and discovering new synergies is part of the fun. โ Mine, Collect, and Grow Stronger Beyond combat, the depths of the Skull Cave hide rich mineral veins and ancient remnants. While exploring the mine, you will gather valuable resources used to upgrade your equipment, enhance your stats, and unlock new possibilities for future runs. Every expedition brings not only danger, but also materials that fuel your long-term progression โ making each descent into the cave meaningful, even in defeat. โ Upgrade Your Equipment Grow stronger between runs by upgrading your gear. Boost your stats and unlock your true potential. Smart equipment progression is key to surviving deeper, more dangerous arenas. โ Multiple Arenas, Unique Enemies Explore diverse arenas hidden within the Skull Cave and across the magical island. Each arena features: โข Distinct visual styles โข Unique enemy types and attack patterns โข Increasing difficulty and new threats Every location feels different and demands a new approach. โ Simple Controls, Deep Gameplay Easy to pick up, hard to master. Intuitive one-hand controls let you focus on movement, positioning, and tactical decisions โ perfect for quick sessions or long runs alike. โ A Mysterious World Awaits What is the artifact hidden deep within the skull-shaped cave? Is it salvationโฆ or destruction? Only those who survive long enough will uncover the truth. โ Key Features: โข Fast-paced roguelike gameplay โข Deep skill build customization โข Equipment upgrade and progression system โข Multiple arenas with unique visuals and enemies โข Simple controls with challenging gameplay depth โข Atmospheric fantasy setting on a magical island โ Privacy policy: https://rusetidan.github.io/privacy-policy/ Terms of use: https://rusetidan.github.io/terms-of-use/
Rocket Betsy
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The aliens picked the wrong farm. When the herd was abducted, one brave cow decided sheโd had enough of being ground-bound. Strap into a flight suit held together by scrap metal, milk crates, and sheer determination. Itโs time for the ultimate vertical rescue mission! ENDLESS ASCENT The higher you fly, the weirder it gets. The galaxy is a very strange place for a cow. How high can you go? UPGRADE YOUR SUIT Fly in style. Collect coins to swap that "DIY Junk-Jet" for a shimmering, high-tech flight suit. Turn rusty buckets into galactic-grade armor! EQUIP GADGETS Only the finest bovine technology. Shield yourself with the Moo-flector or store massive power in the Milk Capacitor. Who says farm animals canโt do rocket science? BEAT YOUR BEST SCORE The steaks have never been higher! Dodge alien blockades and ships, and show those UFOs that they can't out-fly a cow on a mission. OPTIMIZED FOR MOBILE - PLAY OFFLINE: No internet? No problem. Rescue the herd anywhere, from the subway to the moon. - LIGHTWEIGHT: A small file size means more room for your space adventures! - LIGHTNING FAST: Zero wait times. Get from the farm to the stars in seconds.
Screenshots
Verdict
The clearest difference is update cadence: Underisland at every 4 days against Rocket Betsy's every 8 days. On price, ads, 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
Both are free to download. Underisland sells 10 in-app purchases, starting at $4.99 per 7 days and Rocket Betsy sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Underisland ships an update every 4 days, Rocket Betsy every 8 days. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.
| Parameter | Underisland | Rocket Betsy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days โ better | Every 8 days |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details โ not scored | ||
| Size | 217 MB | 217 MB |
| Age rating | 9+ | 4+ |
| Developer | Ruslan Abdullakh | Magmic Inc. |
In-app purchases
Underisland
- Legends' Subscription$4.997 Days
- Planks$0.99
- Planks$3.99
- Starter Pack$5.99
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- Pile of Coins$7.99
- Planks$7.99
- Ingots$7.99
- No Ads$9.99
- Plenty of Magic Threads$19.99
- Barrel of Gems$19.99
Rocket Betsy
- Gem Pack 1$2.99
- Remove Ads - Sale$2.99
- Remove Ads$3.99
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- Gem Pack 2$6.99
- Gem Pack 3$12.99
- Gem Pack 4$24.99
Questions
Is Underisland free?
Is Rocket Betsy free?
Do Underisland or Rocket Betsy have ads?
Which is updated more often, Underisland or Rocket Betsy?
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