Comparison

Space Survival.io vs StackFlow Game

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

Head to head
About

Space Survival.io

Embark on a thrilling sci-fi adventure battling alien invaders across different planets. Combine unique skills to defeat monstrous creatures, survive treacherous dungeons, and rescue humanity. Upgrade your abilities and discover powerful treasures to become the ultimate conqueror.

Highlights
  • Alien invasion combat
  • Skill combination system
  • Planet exploration
  • Monster-infested dungeons
  • Survival craft features
  • Boss battles and loot
Features
Read full description

Welcome survivor! Get ready to enter to this thrilling surprise and exploring science fiction world?This is a world about alien invasion and then tracking aliens to fight on different planets. Space Survival , a monster-infested world system, crawling with all kinds of vicious creatures. Basically, the perfect venue for a twisted spectating alien sports tournament to the death. Are you a fan of survival games or warrior games? No matter what kind of fan you are, you will love Space Survival’s world stopping survival craft features! From a complete noob to warrior, combine the best skills to destroy enemies and become the conqueror! You can create thousands of unique skill combinations to overcome the challenges and survive each wave of enemies’ attacks. The only survivors of mankind call you to go to different planets to clear the invading aliens and monsters, learn various skills, and find precious magic treasures, so as to realize the mission of rescuing your companions and saving mankind. You can gain experience through hard fought battles, and decide which skills it learns. The rules are simple: you must survive the treacherous dungeons, filled with hordes of nasty monsters. If you reach the end, you will face an even more powerful monster. The reward for defeating the boss? A huge loot pile and… another dungeon, of course, this is how sinister this competition is!

About

StackFlow Game

Features
Read full description

STACK FLOW GAME- The Ultimate Block Stacking Challenge! Test your timing and precision in this addictive block stacking game! Drop blocks at the perfect moment to build the highest tower possible. How high can you stack? SIMPLE YET ADDICTIVE GAMEPLAY Tap to drop blocks on the moving platform. Perfect alignment = bigger blocks. Imperfect stacks = narrower blocks. The challenge grows with every level as your blocks get smaller. Master the timing to become the ultimate Stack Flow! KEY FEATURES BEAUTIFUL THEMES Unlock 4 stunning color palettes as you progress: • Classic - Free vibrant theme for beginners • Sunset - Warm pink and orange paradise • Ocean - Cool and calming blue depths • Neon - Electric high-energy vibes UNIQUE BLOCK SHAPES Customize your tower with special block shapes: • Cube - Classic rectangular blocks • Star - Five-pointed star shapes • Diamond - Elegant diamond blocks • Donut - Unique ring-shaped blocks DAILY CHALLENGES Fresh challenges every day keep the game exciting: • Tower Master - Reach incredible heights • Mini Master - Stack tiny precision blocks • Giant Challenge - Build with supersized blocks • Perfect Stack - Test your alignment skills Earn bonus coins by completing daily objectives! COIN SYSTEM & PROGRESSION • Earn 10 coins per block stacked • Get 50 bonus coins for perfect stacks • Build combos for maximum rewards • Unlock premium themes and shapes • Progress from beginner to master PERFECT STACK COMBOS Align blocks within 5 pixels for perfect stacks! Chain perfect stacks together to: • Maintain block width (easier stacking) • Earn massive coin bonuses • Build impressive combo streaks • Achieve unlimited height potential COMPETE & IMPROVE • Beat your personal high score • Track your progress over time • Master the perfect timing • Unlock all cosmetics • Complete every daily challenge SPECIAL FEATURES • Rewind Last Move - Undo mistakes (watch ad or remove ads) • Save Stack - Continue after game over (watch ad or remove ads) • Remove Ads IAP - Enjoy unlimited rewinds without ads • Smooth 60fps gameplay • Beautiful gradient backgrounds • Satisfying block physics • Instant game sessions (no waiting!) GAMEPLAY TIPS • Wait for the platform to center before tapping • Perfect stacks keep your blocks wide • Save coins for the themes you love most • Complete daily challenges for bonus rewards • Practice timing to improve your high score PERFECT FOR • Casual gamers looking for quick fun • Players who love timing challenges • Anyone who enjoys progression systems • Fans of minimalist puzzle games • People who appreciate beautiful design OPTIMIZED EXPERIENCE • Works on all devices • Portrait mode for one-handed play • No complex controls - just tap! • Small download size • Works offline (except ads) • Smooth performance on older devices FREE TO PLAY Download and play completely free! Optional ads for extra lives and optional IAP to remove ads. Everything can be unlocked through gameplay! START YOUR STACKING JOURNEY TODAY! Download Stack Flow now and see how high you can build! Perfect for commutes, breaks, or anytime you want a quick gaming challenge. Will you master the perfect stack? There's only one way to find out!

Screenshots

Space Survival.io4 screens
StackFlow Game4 screens

Verdict

The call

The clearest difference is update cadence: StackFlow Game at daily against Space Survival.io's fortnightly. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Space Survival.io sells 10 one-off in-app purchases and StackFlow Game sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Space Survival.io ships an update fortnightly, StackFlow Game daily. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 9 level
Space Survival.io versus StackFlow Game: the parameters behind the verdict, then further details
ParameterSpace Survival.ioStackFlow Game
PriceFreeFree
Rating4.8 (1.4K ratings) — better—
Positive reviews92.1% of reviews—
Number of ratings1.4K — better—
Update frequencyFortnightlyDaily — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.012.0
Further details — not scored
Size220 MB33 MB
Age rating4+4+
DeveloperSuperfunpro LIMITEDMichael Nwanna

Bugs and requests

Space Survival.io

Reported bugs

3 issues
  • Character movement freezes
  • Progress loss issues
  • Skill button placement problems

Requested features

3 requests
  • Endless mode
  • Improved weapon and gear progression
  • Controller support

StackFlow Game

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Space Survival.io

One-time10
  • coins_0.99$0.99
  • pack_1.99$1.99
  • pack_2.99$2.99
Show 7 more
  • pack_4.99$4.99
  • pack_6.99$6.99
  • coins_9.99$9.99
  • pack_9.99$9.99
  • pack_12.99$12.99
  • pack_19.99$19.99
  • pack_29.99$29.99
1 purchases

StackFlow Game

One-time1
  • StackFlow Game$2.99

Questions

Is Space Survival.io free?
Space Survival.io is free to download, with in-app purchases available.
Is StackFlow Game free?
StackFlow Game is free to download, with in-app purchases available.
Do Space Survival.io or StackFlow Game have ads?
Both Space Survival.io and StackFlow Game show ads.
Which is updated more often, Space Survival.io or StackFlow Game?
Space Survival.io ships an update fortnightly, and StackFlow Game daily. Most recently, Space Survival.io was updated on November 7, 2026 and StackFlow Game on October 30, 2026.

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