Comparison

Jelle's Marble Runs vs Simon's Bacteria

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

Head to head
About

Jelle's Marble Runs

Build and race marble runs with interactive instructions and in-app race commentary. Experience various marble racing events like Marbula One and Marble League.

Highlights
  • Step-by-step building instructions
  • Interactive race announcing
  • Support for various marble racing events
  • Pre-race, in-race, and post-race commentary
  • Designed for Jelle's Skyway Chase Marble Runs
Features
Read full description

The Jelle's Marble Run App is designed to bring your Marble Run to life in a way that has never been done before! Designed specifically for Jelle's Skyway Chase Marble Runs, this app provides step-by-step instructions to help you build innovative racing tracks. Once the track is built, setup races and use the interactive app for pre-race, in-race, and post-race announcing. We have setup the app for Marble Rally, Marbula One, Marble League - Funnel Endurance, Marble League - Team Pursuit, and Marble Survival.

About

Simon's Bacteria

Features
Read full description

Simon's Bacteria is a turn-based strategy game built around one deceptively simple mechanic: rotate a stone, and watch the board change. HOW IT WORKS Each stone on the board points in one of four directions. On your turn, rotate one of your stones 90° clockwise — it moves into the cell it now points to, and can trigger a chain reaction of captures across the board. Read the board carefully: a single rotation can flip the momentum of the entire game. PLAY TOGETHER Challenge your friends through Game Center and play together across iPhone, iPad, and Mac. Choose your favorite game mode, compete for victories, unlock achievements, and jump straight into a rematch. Your first 3 multiplayer games are free — after that, a one-time purchase unlocks unlimited multiplayer for good. • Multiplayer across iPhone, iPad, and Mac • Three unique game modes • Game Center achievements and statistics • Quick rematches with friends PLAY YOUR WAY • Chaos Mode — a fully randomized board for a classic, unpredictable game every time. • Symmetry Mode — mirrored starting positions for a perfectly fair fight. • Balanced Mode — randomized but evenly distributed starting directions. THREE LEVELS OF AI (VINTAGE 1998) No neural networks, no cloud, no buzzwords — just an honest, old-school game AI in the spirit of 1998, built on classic move-search logic rather than anything fashionable. It adapts to the difficulty you choose — from a forgiving opponent that favors easy captures, to a sharp one that looks several moves ahead and plans around your counter-attacks. DESIGNED TO GET OUT OF YOUR WAY • Clean, focused board — no clutter, no timers pressuring your every move. • Three visual stone styles to match your taste. • Game Center leaderboards and achievements to track your wins. • Your games and stats are saved locally — pick up right where you left off. • No ads. No account required for single-player. No data collection beyond what Game Center itself handles. FREE TO PLAY, OPEN SOURCE Single-player is completely free, forever, with everything unlocked — it's an open-source passion project. Multiplayer includes 3 free games to try it out, then a small one-time purchase for unlimited play. If you'd like to say thanks separately, optional tips are available in the Tips menu; they simply help cover the cost of the Apple Developer license required to bring an open-source project like this one to the App Store. Whether you have two minutes or twenty, Simon's Bacteria rewards careful thinking over fast reflexes. COMING SOON We're actively working on additional board generation modes and new AI difficulty tiers.

Screenshots

Jelle's Marble Runs4 screens
Simon's Bacteria2 screens

Verdict

The call

The clearest difference is in-app purchases: Jelle's Marble Runs at none against Simon's Bacteria's 4. Jelle's Marble Runs also leads on iOS requirement (14.0 vs 17.6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Simon's Bacteria sells 4 one-off in-app purchases. Jelle's Marble Runs asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Jelle's Marble Runs versus Simon's Bacteria: the parameters behind the verdict, then further details
ParameterJelle's Marble RunsSimon's Bacteria
PriceFreeFree
Rating3.4 (18 ratings) — better—
Positive reviews16.7% of reviews—
Number of ratings18 — better—
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better17.6
Further details — not scored
Size72 MB15 MB
Age rating4+4+
DeveloperJelle's Marble Runs Limited LLPAndrei Kondratev

In-app purchases

None

Jelle's Marble Runs

No in-app purchases

4 purchases

Simon's Bacteria

One-time4
  • Multiplayer Unlock$0.99
  • Small Tip$0.99
  • Medium Tip$2.99
Show 1 more
  • Large Tip$4.99

Questions

Is Jelle's Marble Runs free?
Jelle's Marble Runs is free to download, with no in-app purchases.
Is Simon's Bacteria free?
Simon's Bacteria is free to download, with in-app purchases available.
Do Jelle's Marble Runs or Simon's Bacteria have ads?
Neither Jelle's Marble Runs nor Simon's Bacteria shows ads.

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