Comparison

Gravity 80s vs GoBrain

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
Read full description

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

GoBrain

Features
Read full description

GoBrain is a clean, ad-free collection of brain and logic puzzles you can play completely offline. Open the Discover hub, pick a game, and start training your brain. PUZZLE GAMES INSIDE • 2048 — swipe to merge matching numbers and reach the 2048 tile. • Sudoku — fill every row, column and 3×3 box with 1–9. 100+ puzzles. • Zip — draw one continuous path through every cell, passing the numbered dots in order. 99 levels. • Patch — split the grid into rectangles so each number's region has the right size and shape (Shikaku-style). 99 levels. • Tango — fill the grid with two symbols so every row and column stays balanced and follows the clues. 99 levels. • Wend — trace hidden words through a grid of letters, using every tile exactly once. 99 levels. • Mend — restore the broken pattern by mirroring each tile back into symmetry. 99 levels. • Plus quick arcade breaks like Flap and a bubble shooter. WHY GOBRAIN • 100% offline — play anywhere, no internet needed. • No ads, no pop-ups, no tracking. Just the games. • Dozens of hand-tuned levels per puzzle, getting gradually harder. • A guided tutorial the first time you open each game. • Auto-saves your progress in every game. FEATURES • A Discover dashboard to browse and launch every game. • Dark, Light, and System themes. • 6 languages: English, Tiếng Việt, 한국어, 中文, 日本語, العربية. • Settings screen: theme, language, and quick links. • Tiny download, instant to start. Simple to learn, hard to master — perfect for a quick break or a long focus session. GOBRAIN PLUS (OPTIONAL) GoBrain Plus unlocks the full Brain Index with its 60-day trend, the Daily Archive, double coins, half-price shop items and exclusive tile skins. It is available as a one-time purchase or as a yearly auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; you can manage or cancel it any time in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gobrain.fighttech.vn/privacy/

Screenshots

Gravity 80s4 screens
GoBrain4 screens

Verdict

The call

The clearest difference is update cadence: Gravity 80s at every 2 days against GoBrain's every 4 days. GoBrain's advantage is iOS requirement (13.0 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Gravity 80s ships an update every 2 days, GoBrain every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
Gravity 80s versus GoBrain: the parameters behind the verdict, then further details
ParameterGravity 80sGoBrain
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 4 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size6 MB24 MB
Age rating4+4+
Developerkota morishitaTran Trung Hieu

In-app purchases

None

Gravity 80s

No in-app purchases

None

GoBrain

No in-app purchases

Questions

Is Gravity 80s free?
Gravity 80s is free to download, with no in-app purchases.
Is GoBrain free?
GoBrain is free to download, with no in-app purchases.
Do Gravity 80s or GoBrain have ads?
Neither Gravity 80s nor GoBrain shows ads.
Which is updated more often, Gravity 80s or GoBrain?
Gravity 80s ships an update every 2 days, and GoBrain every 4 days. Most recently, Gravity 80s was updated on October 28, 2026 and GoBrain on October 31, 2026.

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