Booster Up! vs Memory Castle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Booster Up!
Embark on an intergalactic adventure by merging rocket modules to create powerful spacecraft. Launch your rocket, explore planets, collect rewards, and upgrade components to fly farther and overcome challenges.
- Merge rocket modules
- Launch and explore planets
- Collect rewards and stars
- Upgrade rocket components
- Unlock new rockets
- Overcome space challenges
Read full descriptionHide full description
Prepare for an intergalactic journey in this exhilarating game! Start with a basic rocket and upgrade it by merging different modules. Then, launch your rocket into space and explore various planets. During your space flight, swipe your rocket towards gift boxes in different directions to earn rewards. Collect stars to upgrade your rocket's heat shield, fuel or booster and fly even farther for explore the space! As you fly deep into space, earn money to unlock new rockets and visit different planets. Find the VIP boxes and launch toward to them and earn special items and power-ups to give you an edge on your journey. With each new planet, you'll encounter unique challenges and obstacles, but don't worry, your upgraded rocket and modules will help you overcome them. But that's not all! As you collect more stars, you'll also unlock the ability to upgrade your modules of your rocket! From high-boost rockets that can travel at lightning speeds to high-fuel rockets that can fly even the frontier the space, the possibilities are endless. So what are you waiting for? Strap in and blast off into a galaxy full of adventure with this exciting game. It's time to boosters up and explore the final frontier! By downloading Booster Up! you are agreeing to our terms of service; https://www.rollicgames.com/terms
Memory Castle
Read full descriptionHide full description
Memory Castle turns the oldest memory trick in the world into a game. Long before notebooks and phones, Greek and Roman speakers memorized whole speeches by imagining a building and placing each idea in a room. Memory champions still use it today. It's called the memory palace, or the method of loci, and it works because your brain is brilliant at remembering places. HOW IT WORKS • Step into a hand-painted room and study where each object sits. • Tap each one and picture it there. The more vivid and absurd, the better it sticks. • The room empties. Drag every object back to the exact spot where it belongs. • Get it perfect and the room grows by one more object. Master the room and climb on. 20 HAND-PAINTED ROOMS From a sleeping pod under star charts to a treehouse strung with lights, every room is its own little world, with objects you won't find anywhere else in the castle. THE GATEKEEPER Every three rooms, the Gatekeeper blocks the stairs. To pass, rebuild all three rooms from memory, back to back, with no hints. Pass and your climb is saved. Slip and you'll have to earn your way back up. THREE WAYS TO PLAY • Story Mode: Climb the castle room by room. Miss once and you get one more try. Miss again and you head back to the start of that part of the castle. Pick up from any room you've reached on the castle map. • Timed Mode: Every room arrives fully set up, revealed object by object on a clock you set from 1 to 7 seconds. One slip ends the run. • Endless Mode: Rooms keep coming, and after each one you rebuild every room so far. The load keeps growing. How deep can you go? PLAY YOUR WAY • Easy, Medium or Hard: 4, 5 or 6 objects per room, chosen separately for each mode. • A calm original soundtrack. Pick your favorite song or let it play at random. • Made for iPhone and iPad, and for the foldable iPhone, folded or open, in any orientation. • Plays completely offline. No account and no sign-in. • Nine languages: English, French, Italian, German, Spanish, Brazilian Portuguese, Japanese, Korean and Simplified Chinese, switchable any time. • A short walkthrough teaches each mode the first time you play it. TIPS FROM THE MEMORY PALACE • Make it strange. A thermometer dancing on the shelf is easier to recall than a thermometer sitting there. • Use your senses. Imagine the sound, the smell, the weight of each object. • Walk the room in order. Go left to right, the same way every time. • Rest, then review. The Gatekeeper rewards rooms you've revisited in your mind. FAIR AND SIMPLE Story rooms 1 to 3 are free to play. Unlock the rest with small one-time purchases: All Rooms, Endless Mode, Timed Mode, or All Access for everything. No subscriptions, no ads, no energy meters asking you to wait, and no personal data collected. WHO IT'S FOR • Students who want a better way to learn for exams. • Puzzle fans looking for a calm challenge that rewards focus, not speed. (Unless you pick Timed.) • Anyone who walks into a room and forgets why. Start here. • Families: no ads, no chat, nothing to sign up for. A SKILL THAT STAYS WITH YOU The memory palace isn't just for games. Once you've built a few rooms in Memory Castle, you'll have a technique you can use for shopping lists, names, speeches and study, long after you put your phone down. Twenty rooms. One Gatekeeper after another. How far can you go?
Screenshots
Verdict
The clearest difference is ads: Memory Castle at none against Booster Up!'s shown. Booster Up!'s advantage is iOS requirement (11.0 vs 18.0). On price, in-app purchases and device support 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
Both are free to download. Booster Up! sells 10 one-off in-app purchases and Memory Castle sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Booster Up! | Memory Castle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (17K ratings) — better | — |
| Positive reviews | 19.2% of reviews | — |
| Number of ratings | 17K — better | — |
| Update frequency | Weekly | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 400 MB | 68 MB |
| Age rating | 12+ | 4+ |
| Developer | Rollic Games | ALARIC CORBIN |
Bugs and requests
Booster Up!
Reported bugs
5 issues- Rocket parts disappearing after upgrades
- Inability to reach or progress past certain planets
- Inconsistent reward payouts
- Game freezing or crashing
- Saved progress not loading correctly
Requested features
4 requests- Offline play mode
- More diverse rocket and module options
- Improved progression system
- Better reward balancing
Memory Castle
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Booster Up!
- Beginners Pack$0.99
- Diamond - 3M$1.99
- No ADS$3.99
Show 7 moreShow fewer
- Special Module Pack$4.99
- Adventurer’s Pack$6.99
- Adventurer's Pack with No-Ads$9.99
- Astronaut’s Pack$12.99
- Astronaut’s Pack with No Ads$14.99
- Explorer’s Pack$19.99
- Explorer’s Pack with No Ads$24.99
Memory Castle
- Endless Mode$0.99
- All Rooms$0.99
- Timed Mode$0.99
Show 2 moreShow fewer
- Complete the Castle$0.99
- All Access$1.99
Questions
Is Booster Up! free?
Is Memory Castle free?
Do Booster Up! or Memory Castle have ads?
Other comparisons















