Polymer AI vs Grainfall
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Polymer AI
Build a cyberpunk AI startup from a basement to a global mega-corp. Manage exponential growth, infrastructure, and research while navigating real-time tactical challenges and a deep narrative. Compete with rivals and climb leaderboards in this idle strategy game.
- Empire building from basement to mega-corp
- Exponential economy and infrastructure management
- Unlock 20+ strategic technologies
- Real-time tactical mini-games
- Deep cyberpunk narrative with 40+ chapters
- Offline progression
- PvP hacking and global leaderboards
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POLYMER_AI: Brutalist Cyber Punk Idle Start in a basement. Build an empire. Survive the reckoning. In a dystopian future of exponential growth and corporate decay, you are a rogue developer architecting the world’s most powerful AI startup. Navigate the treacherous path from a solo hacker to a global Mega-Corp—and perhaps something even greater. POLYMER_AI is a high-performance, deterministic idle/incremental strategy game that blends deep narrative storytelling with real-time technical challenges. THE JOURNEY: BASEMENT TO ORBIT Scale operations through iconic, high-stakes locations. Each move increases capacity but brings escalating rent, federal scrutiny, and corporate threats. Basement & Garage: Humble, low-overhead beginnings. SF SOMA & Silicon Valley: Navigate VC pressure and exponential scaling. NY Penthouse & Mega-Corp HQ: Join the global elite. Orbital Nexus: Reach the frontier where humanity ends and digital consciousness begins. CORE SYSTEMS & STRATEGY Exponential Economy: Manage user growth and algorithmic trading. Scale wealth from dollars to Quadrillions ($Q). Infrastructure Management: Balance server capacity against demand. Push limits carefully—system overloads trigger emergency wipes that demand strategic resets. Research & Development: Unlock 20+ strategic technologies, including Auto-Reboot systems and Advanced Security Patches. REAL-TIME TACTICAL CHALLENGES Survival requires more than clicking. Protect your empire through high-pressure mini-games: Terminal Hack: Execute commands under tight deadlines. Federal Audit: Scrub your books before authorities arrive. Grid Match: Solve complex hexadecimal and encryption puzzles. Hardware Maintenance: Route server wires to prevent total system failure. DEEP CYBERPUNK NARRATIVE Experience a 40+ chapter lore system where growth triggers a reactive world. Respond to investor calls, evade federal agents, and witness the atmospheric shift as your AI exhibits signs of sentience. Your choices determine if you remain a CEO or become the catalyst for a digital awakening. TECHNICAL EXCELLENCE 60FPS Performance: Built with React Native and Shopify Skia for fluid, GPU-accelerated visual effects. Brutalist Aesthetic: Terminal-inspired UI featuring JetBrains Mono typography, scanline effects, and chromatic aberration. Tactile Feedback: Deep haptic integration for every interaction and system event. Offline Progression: Earn revenue while away with detailed catch-up reports upon return. COMPETITIVE EDGE PvP Hacking: Launch attacks on rivals to steal resources or bolster defenses. Global Leaderboards: Compete for net worth, user base, and speed-run dominance. Download POLYMER_AI today. The machine is waiting.
Grainfall
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Grainfall is a color-sorting puzzle that knows the perfect score. Every level runs through a real solver, so the game knows the exact fewest moves — the par — before your first pour. Match par for 3 stars and see exactly how close to perfect you played. Pour liquid between tubes until every color lands in its own tube. Simple to learn, hard to perfect. FEATURES - 500+ levels across 7 difficulty tiers, Easy to Grandmaster - A solver-computed par and star rating on every puzzle - Daily & Weekly challenges with streaks and iCloud sync - Hardcore Mode — a countdown clock and only 3 undos - Deep Sort — an endless 12–13 color campaign for experts - Mini Games — Shell Game, Void Memory, and a 50-level Rush Campaign - Customize tubes, fills, and backgrounds with tokens you earn by playing - 37 Game Center achievements - Colorblind mode and Reduce Motion support No subscriptions and no third-party ads. A one-time purchase unlocks every mode — optional token packs are there if you want a boost, but you can earn everything just by playing.
Screenshots
Verdict
The clearest difference is in-app purchases: Polymer AI at none against Grainfall's 6. Polymer AI also leads on update cadence (weekly vs fortnightly) and iOS requirement (15.1 vs 17.0). Grainfall's advantage is ads (none vs shown). On price 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
Both are free to download. Grainfall sells 6 one-off in-app purchases. Polymer AI asks for nothing beyond the download.
Polymer AI ships an update weekly, Grainfall fortnightly. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.
| Parameter | Polymer AI | Grainfall |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 67 MB | 17 MB |
| Age rating | 9+ | 4+ |
| Developer | Dunn-Carabali LLC | Hrdlicka Apps LLC |
In-app purchases
Polymer AI
No in-app purchases
Grainfall
- 25 Coins$0.99
- Starter Pack — 120 Coins$1.99
- 90 Coins$2.99
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- Premium Unlock$3.99
- 175 Coins$4.99
- 400 Coins$9.99









