Comparison

Stellar! vs IdleOn

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

Head to head
About

Stellar!

Defend the last planet with life from alien robots by controlling a spaceship and strategically placing towers. Loot spaceships and towers, upgrade abilities, and combine cards to build your unique defense strategy. Compete globally on the ranking system.

Highlights
  • Control spaceship to defend base
  • Select tactical upgrades
  • Loot spaceships and towers
  • Unique tower abilities
  • Combine spaceship and tower cards
  • Global ranking system
Features
Read full description

Welcome, Captain! In the current world ruled by robots, this is the only planet with life. Alien robots are constantly trying to eliminate life on this planet Protect the planet from alien robots! Features ● Protect the base from enemies by controlling the spaceship ● After each stage, you can select tactical upgrades to protect your base ● Open supply crates to loot spaceships and towers and place them tactically ● Every tower has unique abilities and skills. Use skills to defend more effectively ● Build your own strategy by combining spaceship and tower cards ● You can compete with players around the world using the ranking system owings37@gmail.com - Credit Sound: www.bensound.com

About

IdleOn

Manage heroes who fight and earn loot even when you're offline. Upgrade their skills, unlock diverse classes, and engage in numerous activities like crafting, pet battles, and research. Experience endless idle gains and interact with NPCs and other players in this feature-rich RPG.

Highlights
  • Offline hero progression
  • 19 unique classes
  • 250+ skill perks
  • 20+ unique skills to level
  • Crafting and research systems
  • Pet battles and minigames
  • Multiplayer interaction
Features
Read full description

The management RPG where your heroes keep fighting even when you're gone! Spend their loot on upgrades, unlock classes from Elemental Wizard to Cannon Pirate, and level up 20 unique skills like Farming, Sailing, and even Construction! GAME FEATURES • 19 unique classes to specialize into! Will you max out idle gains, or go for max loot drop chance? • 250 skill perks to play with! A minmax dream! • More content than any other idle game, and rarely found in other RPG games! Complete Post Office Orders, collect and upgrade Stamps, deposit Statues, hunt rare monster for special crafting recipes, pray at the Obol Altar, compete in minigames, build a factory, command pet battles, do research, and more! What other idle games even have half as cool of features? None of them of course! • Unlimited idle gains, unlike most idle Games that cap you at 12 hours. Ew, right? • Level up 12 unique skills in true RPG fashion: Mining, Smithing, Alchemy, Fishing, Woodcutting, Construction, Breeding, Cooking, and more! • Talk to 50+ NPC's, all with hand-drawn pixel art animations • Witness the mental decline of the developer who made this game all by themselves! They've gone so insane that they speak of themselves in the 3rd person! • 200+ unique Equipment, like Helmets, Rings, uh, weapons... you know, all the normal stuff in an MMO • Talk with other REAL people! Kind of like how I'm talking to you right now, except you'll get to talk back! • Get HYPED for new content coming in the future by joining my discord at: Discord.gg/idleon • Yo man, life is too short to be reading entire game descriptions. You got this far, so you either REALLY need to go download the game, or you just scrolled to the bottom to see what's here. If so, there's nothing here except a smiley face with a nose :-)

Screenshots

Stellar!4 screens
IdleOn4 screens

Verdict

The call

The clearest difference is rating: IdleOn at 4.3 against Stellar!'s 2.2. IdleOn also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). Stellar!'s advantage is review sentiment (83% vs 59%) and iOS requirement (13.0 vs 15). On price, in-app purchases, monetization model 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. Stellar! sells 6 one-off in-app purchases and IdleOn sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

IdleOn holds the better App Store score, 4.3 against 2.2. That said, the two scores are not equally well evidenced: IdleOn has 2.6K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 83% of Stellar!'s written reviews are positive against 59% of IdleOn's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Stellar! ships an update every 2 months, IdleOn weekly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Stellar! versus IdleOn: the parameters behind the verdict, then further details
ParameterStellar!IdleOn
PriceFreeFree
Rating2.2 (5 ratings)4.3 (2.6K ratings) — better
Positive reviews83.3% of reviews — better59.3% of reviews
Number of ratings52.6K — better
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15
Further details — not scored
Size104 MB324 MB
Age rating9+9+
DeveloperSeHyeon ImLavaflamestudios LLC

Customer experience

Stellar!

All ratings5 ratings
Positive20.0%
Neutral20.0%
Negative60.0%
Written reviews12 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

IdleOn

All ratings2,577 ratings
Positive80.6%
Neutral2.9%
Negative16.5%
Written reviews718 reviews
Positive59.3%
Neutral8.8%
Negative31.9%

Bugs and requests

Stellar!

Not enough reviews yet to summarise bugs or requests.

IdleOn

Reported bugs

3 issues
  • Quests not tracking progress correctly
  • Character creation name input issues
  • Dungeon crashes on mobile

Requested features

3 requests
  • Ability to reset skill points
  • Notifications for in-game chats
  • Improved mobile UI and controls

In-app purchases

6 purchases

Stellar!

One-time6
  • 20 GEMS$0.99
  • 110 GEMS$4.99
  • 240 GEMS$9.99
Show 3 more
  • 550 GEMS$19.99
  • 1500 GEMS$49.99
  • 3200 GEMS$99.99
10 purchases

IdleOn

One-time10
  • gem_a00$1.99
  • gem_b0$4.99
  • Starter Pack$4.99
Show 7 more
  • Auto Loot Pack$4.99
  • Storage Ram Pet Pack$8.99
  • Eggscellent Pack$9.99
  • gem_c0$9.99
  • bun_j$19.99
  • gem_d0$19.99
  • Mongo Offering$44.99

Questions

Is Stellar! free?
Stellar! is free to download, with in-app purchases available.
Is IdleOn free?
IdleOn is free to download, with in-app purchases available.
Which has better reviews, Stellar! or IdleOn?
IdleOn is rated higher. Stellar! averages 2.2 out of 5 from 5 ratings, while IdleOn averages 4.3 from 2.6K ratings.
Do Stellar! or IdleOn have ads?
Stellar! shows ads; IdleOn does not.
Which is updated more often, Stellar! or IdleOn?
Stellar! ships an update every 2 months, and IdleOn weekly. Most recently, Stellar! was updated on November 2, 2026 and IdleOn on November 3, 2026.

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