Comparison

Gravity 80s vs Skein

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

Head to head
About

Gravity 80s

Features
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Gravity Dot is a space physics puzzle game where you pilot a tiny dot-ship through procedurally generated solar systems using only planetary gravity and a limited fuel thruster. No waypoints. No autopilot. Just you, inertia, and gravity. ARCADE MODE Progress through increasingly complex solar systems. Use swing-by maneuvers to navigate around planets, avoid black holes, and reach the target star. Drain its energy to clear the mission, then spend earned energy on upgrades at the Hangar. 3 lives per run — one wrong orbit and it's game over. ENDLESS MODE Explore an infinite universe with no fuel limits. Absorb energy from any planet for score and drift as far as you can. Unlocked after clearing Mission 5. HOW TO PLAY - Drag anywhere to aim your thruster - Hold to accelerate — fuel is limited, use it wisely - Release to coast on inertia - Use planetary gravity to slingshot, brake, and change direction - Pinch to zoom in and out FEATURES - Real swing-by physics powered by a custom Velocity Verlet engine - 300+ real celestial bodies from astronomical catalogs - 17 procedural planet shaders — gas giants, ice worlds, lava planets, black holes, and more - 4 distinct map layouts — solar system, corridor, cluster, and dual core - 6-category upgrade system with 10 levels each - Rogue planets and binary moons at higher levels - Real-time orbit prediction line - Planet scan HUD identifying nearby celestial bodies - Full planet catalog tracking every encounter - All sound effects and ambient music synthesized at runtime — zero audio files - Retro pixel art visuals - Game Center leaderboards No ads. No in-app purchases. Just pure space physics.

About

Skein

A one-touch reflex game focused on timing and nerve. Guide a glowing thread through an endlessly narrowing and accelerating corridor, collecting sparks and dodging hazards. Enjoy a pure, offline experience with optional cosmetic themes.

Highlights
  • One-touch control
  • Endless escalating corridor
  • Collect sparks for score
  • Dodge hazards
  • Multiple motif themes
  • Offline play
Features
Read full description

Skein is a one-touch reflex game about flow, timing, and nerve. Hold to pull your glowing thread inward. Release to let it drift outward. Weave through a continuous, winding corridor as it narrows, sweeps, and pinches — and never stops getting faster. There are no levels and no finish line: just you, the line, and one more run. • One-touch control — playable with a single thumb • An endless corridor that escalates forever — how far can you go? • Collect Sparks for score and combos; thread the edges for near-miss bonuses • Dodge Voids — the red hazards that end your run • Shifting sections: calm straightaways, tight serpentines, sudden pinches • Motif themes — reskin the field with hearts, stars, flowers and more • No ads by default. No accounts. No tracking. Fully offline. • Optional, purely cosmetic in-app purchases — themes never change difficulty Simple to learn. Endless to master. Thread the impossible line.

Screenshots

Gravity 80s4 screens
Skein3 screens

Verdict

The call

The clearest difference is in-app purchases: Gravity 80s at none against Skein's 4. On price, ads, device support and iOS requirement 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. Skein sells 4 one-off in-app purchases. Gravity 80s asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Gravity 80s versus Skein: the parameters behind the verdict, then further details
ParameterGravity 80sSkein
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 days—
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size6 MB1 MB
Age rating4+4+
Developerkota morishitaThomas Masters

In-app purchases

None

Gravity 80s

No in-app purchases

4 purchases

Skein

One-time4
  • Floral Pack$1.99
  • Cosmic Pack$1.99
  • Geometric Pack$1.99
Show 1 more
  • Cosmetic Bundle$2.99

Questions

Is Gravity 80s free?
Gravity 80s is free to download, with no in-app purchases.
Is Skein free?
Skein is free to download, with in-app purchases available.
Do Gravity 80s or Skein have ads?
Neither Gravity 80s nor Skein shows ads.

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