Comparison

Big Roller vs Circuit Keep

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Big Roller

Features
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Restore a forgotten city above the clouds. Big Roller: Skyfoundry is a single-player resource management and restoration game where you become the caretaker of a damaged floating settlement. Rebuild essential district modules, manage valuable resources, guide your crew, and bring the Skyfoundry back to life one system at a time. PLAN YOUR DISTRICT Place and upgrade specialized modules, including workshops, gardens, archives, docks, and markets. Organize your district carefully and improve its operational power as restoration progresses. MANAGE YOUR CREW Assign crew members to production, exploration, research, and recovery duties. Balance their energy, develop their experience, and recruit new specialists as the district expands. RUN PRODUCTION Choose production recipes, reserve resources, and manage active jobs. Turn gathered materials into the supplies needed for upgrades, research, and future expeditions. EXPLORE NEW ROUTES Prepare supplies, select a qualified crew member, and launch expeditions across distant cloud routes. Every decision affects duration, resource costs, and the chance of success. UNLOCK RESEARCH Develop a connected research network that improves production, exploration, and district capabilities. Complete milestones and discover new ways to operate the Skyfoundry. SHAPE EACH DAY Choose daily directives, complete objectives, respond to changing conditions, and steadily advance the restoration roadmap. TRACK YOUR PROGRESS Monitor district restoration, building levels, crew readiness, production cycles, expeditions, achievements, and research progress from one command center. PLAY AT YOUR OWN PACE Big Roller: Skyfoundry is designed for thoughtful, uninterrupted single-player play. Progress through the restoration roadmap at your own pace and make decisions based on the resources and crew available to you. YOUR PROGRESS, YOUR WAY Gameplay progress is stored locally on your device. You can export your save as a portable file, import a compatible save file, or restore a local backup when needed. All currencies and resources in the game are fictional virtual gameplay items. They have no real-world monetary value and cannot be purchased, transferred, exchanged, or redeemed for cash or goods. The future of the Cloud District depends on careful planning, capable crews, and the choices you make each day.

About

Circuit Keep

Features
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Circuit Keep is a tactical card puzzle game about building stable circuits from a constantly changing hand. Place cards into lanes, connect matching patterns, and balance three competing systems: Lock, Charge, and Stability. Every placement changes the shape of the board and can create new opportunities or dangerous overloads. Plan several moves ahead, manage your Alert level, and complete each stage's objectives before the workshop falls out of balance. FEATURES β€’ 48 campaign stages across six distinct workshop districts β€’ 30 fixed Blueprint puzzles built around pure logic and careful planning β€’ 6 Trials with special rules and unique scoring challenges β€’ Daily challenges with a consistent daily seed and Bronze, Silver, and Gold results β€’ Endless mode with escalating targets and multiple rounds β€’ Optional workshop tools that help you recover from difficult situations β€’ Cosmetic finishes that personalize the look of your cards and board β€’ Archive views for reviewing completed circuits and progress β€’ A guided introduction that teaches placement, circuits, alerts, and scoring EACH STAGE PLAYS DIFFERENTLY The workshop changes from district to district. Some stages focus on preserving cards between turns. Others reward color patterns, symmetry, sequences, or controlled Alert management. You will need to adapt your strategy instead of relying on a single pattern. A safe move in one district may be risky in another. BUILT FOR THOUGHTFUL PLAY Circuit Keep has no lives, no forced timers, and no required purchases. Take your time, experiment with different placements, and improve your result through better planning. Blueprint puzzles disable workshop tools so that every solution depends on your decisions. Daily challenges provide a shared puzzle for the day, while Endless mode tests how long you can keep the system stable as the targets continue to rise. Whether you enjoy solitaire-inspired card games, logic puzzles, or compact strategy challenges, Circuit Keep gives you a workshop full of systems to understand and master.

Screenshots

Big Roller4 screens
Circuit Keep4 screens

Verdict

The call

Big Roller and Circuit Keep are too close to call on the numbers: across 5 compared parameters β€” price, ads, in-app purchases and device support among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Big Roller versus Circuit Keep: the parameters behind the verdict, then further details
ParameterBig RollerCircuit Keep
PriceFreeFree
Update frequencyEvery 2 weeksβ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS16.016.0
Further details β€” not scored
Size38 MB16 MB
Age rating4+12+
DeveloperGREEN TECH PYROLYSIS, INC.Miles Sand & Gravel Company

In-app purchases

None

Big Roller

No in-app purchases

None

Circuit Keep

No in-app purchases

Questions

Is Big Roller free?
Big Roller is free to download, with no in-app purchases.
Is Circuit Keep free?
Circuit Keep is free to download, with no in-app purchases.
Do Big Roller or Circuit Keep have ads?
Neither Big Roller nor Circuit Keep shows ads.

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