Comparison

Idle Stars vs Groundbound

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

Head to head
About

Idle Stars

Build a star-spanning empire by managing resources, researching technologies, and colonizing new worlds. Engage in diplomacy or conflict with alien civilizations. Reset your universe with permanent upgrades to achieve greater progress each cycle.

Highlights
  • Layered idle economy with five resources
  • Research paths and automation
  • Galaxy map with exploration and colonization
  • Diplomacy and conflict with civilizations
  • Supernova resets with permanent progression
  • Offline progress and notifications
Features
Read full description

Begin with one quiet world and turn it into an empire among the stars. Idle Stars is an incremental strategy game about connected systems. Build solar arrays, mines, laboratories, habitats, and spaceports. Balance five resources, research technologies that change how your economy works, and install AI Directors to automate each world while you are away. When your first planet is no longer enough, launch explorers into a living galaxy. Colonize new worlds, connect them into sectors, and meet civilizations with their own histories and strengths. Open talks, send envoys, or bring the fleet—the choices you make shape the empire and what the galaxy remembers. Eventually, growth reaches its limit. Trigger a supernova, carry stardust and permanent upgrades into a fresh universe, and push farther on every cycle. FEATURES • A layered idle economy built around energy, minerals, science, population, and influence • Research paths and automation that transform how worlds grow • A galaxy map with exploration, travel, colonization, and sectors • Civilizations that can be approached through diplomacy or force • Supernova resets with lasting progression • Offline progress and optional local notifications • Game Center achievements • Optional iCloud document sync between your Apple devices • Universal support for iPhone and iPad • No ads and no subscription The complete game is free. The optional Supporter Pack permanently unlocks three styles for planets, ships, and the app icon. You can also buy one hour of ×2 production: the timer runs in real time, even while the app is closed, and the multiplier never stacks above ×2. The optional Stellar Charter permanently multiplies all production by ×1.5, in every run.

About

Groundbound

Features
Read full description

You've crash-landed on a deserted planet. Your rocket broke apart on impact, scattering its parts across hills, chasms and deep underground. The only way home is to find every last one and rebuild the rocket. BUILD YOUR OWN MACHINE Snap wheels, frames, motors, springs, suction cups, propellers and cargo boxes together on a grid to build a vehicle that's entirely your own. Shape and setup decide everything: whether it climbs the hill, clears the chasm or flips over on the first bend. The physics are real, so you can try out every idea on the spot. EXPLORE THE PLANET The world is one big, seamless place. You decide where to go: across the surface, up into the sky or down into cramped caves that call for a completely different machine. Along the way you'll discover abandoned bases and push on from there. HAUL YOUR CARGO HOME Every part you find exists only once, and nothing makes its own way back. Whatever you find, you have to load up and bring home. Hauling the big rocket parts is a fresh puzzle every time. UNCOVER WHAT HAPPENED Ship's logs lie next to the parts. Bit by bit, they reveal what went wrong on the flight and who built the abandoned bases on the planet. • 2D physics building and driving • open world with caves and hidden places • a story told through ship's logs • achievements and a progress tree • battles with old guard robots • landscape play with touch or keyboard • fully playable in English

Screenshots

Idle Stars4 screens
Groundbound4 screens

Verdict

The call

The clearest difference is update cadence: Groundbound at every 2 days against Idle Stars's every 3 weeks. Groundbound also leads on iOS requirement (15.0 vs 17.0). 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. Idle Stars sells 3 one-off in-app purchases and Groundbound sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Idle Stars ships an update every 3 weeks, Groundbound every 2 days. Both last shipped on November 6, 2026.

Scorecard2 real differences · 8 level
Idle Stars versus Groundbound: the parameters behind the verdict, then further details
ParameterIdle StarsGroundbound
PriceFreeFree
Rating4.8 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size13 MB92 MB
Age rating9+9+
DeveloperPULSAR LLCJaroslav Knapek

In-app purchases

3 purchases

Idle Stars

One-time3
  • 1-Hour Boost$1.99
  • Supporter Pack$4.99
  • Stellar Charter$7.99
2 purchases

Groundbound

One-time2
  • +20 garage slots$2.69
  • +100 garage slots$4.99

Questions

Is Idle Stars free?
Idle Stars is free to download, with in-app purchases available.
Is Groundbound free?
Groundbound is free to download, with in-app purchases available.
Do Idle Stars or Groundbound have ads?
Neither Idle Stars nor Groundbound shows ads.
Which is updated more often, Idle Stars or Groundbound?
Idle Stars ships an update every 3 weeks, and Groundbound every 2 days. Most recently, Idle Stars was updated on November 6, 2026 and Groundbound on November 6, 2026.

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