StringFusor vs openblocks
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
StringFusor
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Strings of colored energy fall into a reactor. Fuse them into patterns and release what they hold. StringFusor is a color-matching puzzle in the classic falling-piece family, rebuilt around one idea: patterns you can AIM for. Beyond rows and columns lies a book of named fusion patterns — THE BLOCK, THE ZIGZAG, THE X — each with a measured difficulty and a real payout. You are never matching by accident; you are hunting a shape you chose. TWO WAYS TO PLAY EXPERIMENT is the self-directed game. Choose your target pattern, set your own dials — how many colors, how long the strings — and the reactor pays you for difficulty honestly: harder hunts, bigger energy. When you outgrow the pattern book, the forge offers shapes designed by the game itself — symmetric, provably buildable, and never seen before. Skip what you like; the chooser is never a dead end. PROGRESSION is the shared game. Every day, one board, one seed, one bonus target — identical for every player on Earth. Same strings, same order, pure play. Your best lands on that day's leaderboard, and tomorrow is a fresh start for everyone at once. New here? A short optional ORIENTATION teaches the six easiest patterns on a fixed board, and its own leaderboard ranks your cleanest run. BUILT CALM ON PURPOSE No timers — think as long as you want. Unlimited undo — every move can come back. No ads, ever. Nothing pulses, nags, or flashes at you: the reactor hums, the planet turns, the strings fall when you say so. Every button carries a small accessibility feature: a tap filter tuned to the frequency of a resting hand tremor, so an unsteady hand registers one clean press — designed in from the start, not bolted on. REPLAY any run move by move. Watch the DEMO play itself when you would rather study than fuse. Compete on Game Center, or never sign in at all. ONE HONEST PRICE All of PROGRESSION — the daily board, the orientation, replays, and its leaderboard — is free, forever. A single one-time unlock opens the full EXPERIMENT track: the dials, the pattern chooser, the forge, and its leaderboard. No subscription. No ads. No consumables. Try EXPERIMENT free once per day before deciding. GIVING 2.5% of the net profit from halfmarble's software will go directly to support Team Fox, the grassroots fundraising program of The Michael J. Fox Foundation for Parkinson's Research. halfmarble is an independent Team Fox third-party fundraiser. 2.5% to Public Health Collaboration (PHC) - https://phcuk.org/ StringFusor is a halfmarble game.
openblocks
Experience a pure, classic block puzzle game with no distractions. Stack falling blocks, clear lines, and increase your score as gravity intensifies. Enjoy intuitive controls and a minimalist design for uninterrupted gameplay.
- Classic block stacking gameplay
- Line clearing for scoring
- Progressive difficulty
- Next-piece preview
- Soft and hard drop options
- Wall kicks for rotation
- Offline play
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Stack falling blocks, clear lines, and chase higher levels in a clean, classic block puzzle with none of the junk that clutters this genre. No ads. No tracking. No accounts. No in-app purchases. openblocks never touches the network. It's just the game. You can even play it in airplane-mode. PURE CLASSIC GAMEPLAY • Clear lines to score and level up, with gravity that ramps up as you go • Plan ahead with the next-piece preview • Soft drop for control, hard drop for speed • Wall kicks for smooth, forgiving rotation • Pause anytime and pick up where you left off CONTROLS THAT GET OUT OF THE WAY • Drag to slide a piece, tap to rotate • Flick down to drop it instantly, or drag down slowly to guide it • Prefer buttons? Turn on the on-screen control pad in the menu • Crisp, minimal visuals that stay out of your way FREE AND OPEN SOURCE openblocks is open source. Read the code, report a bug, or build it yourself: https://github.com/dannyheskett/openblocks No dark patterns, no "energy" timers, no paywalled pieces. Just the timeless falling-block puzzle, done properly.
Screenshots
Verdict
The clearest difference is in-app purchases: openblocks at none against StringFusor's 1. openblocks also leads on iOS requirement (15.0 vs 18.6). On price, ads 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. StringFusor sells 1 one-off in-app purchase. openblocks asks for nothing beyond the download.
| Parameter | StringFusor | openblocks |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | HaalfMaarble LLC | Daniel Heskett |
In-app purchases
StringFusor
- Fusion Core$4.99
openblocks
No in-app purchases
Questions
Is StringFusor free?
Is openblocks free?
Do StringFusor or openblocks have ads?
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