Comparison

ClusterSum vs When It Clicks

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

Head to head
About

ClusterSum

Features
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Number puzzle game

About

When It Clicks

Features
Read full description

When It Clicks is a cozy, chill puzzle game that tickles your brain in the best way. No rush - just you, stacked layers of blocks, and that lovely “aha!” when everything lines up. Yep, when it clicks, you’ll know. HOW IT WORKS Every puzzle is a 3D shape made of hand-crafted pixel art, split into layers that you rotate with a swipe. When the shape snaps into place: pure satisfaction. Easy to pick up, quietly rewarding to master. WHY IT FEELS GOOD • Play at your own speed; patience and a keen eye are rewarded. • Brain candy - Logic and a bit of spatial thinking, not twitchy reflexes. • That satisfying finish - Layers lock together with a clear, rewarding “done!” moment. • Hand-crafted pixel-art shapes - Each puzzle is a little work of art, from animals and objects to landmarks, transport, food, and nature. • Pretty 3D graphics - Clean isometric look with a cozy day/night theme. If you spot something in the sky tap it for a little boost. COLLECT & UNLOCK Solve puzzles to fill your collection. Unlock shapes across categories, earn stars as you go, and hit milestones for extra lives and bonus turns so you can keep the good vibes going. The collection will keep growing with future updates - always something new to discover. When It Clicks is free to play with optional rewarded ads. Perfect for a coffee break, a commute, or winding down when you want a puzzle that just feels good.

Screenshots

ClusterSum4 screens
When It Clicks4 screens

Verdict

The call

The clearest difference is in-app purchases: When It Clicks at none against ClusterSum's 10. When It Clicks also leads on iOS requirement (13.0 vs 16.0). ClusterSum'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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ClusterSum sells 10 one-off in-app purchases. When It Clicks asks for nothing beyond the download.

Scorecard3 real differences · 3 level
ClusterSum versus When It Clicks: the parameters behind the verdict, then further details
ParameterClusterSumWhen It Clicks
PriceFreeFree
Update frequency—Every 3 days
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size10 MB134 MB
Age rating4+4+
DeveloperSnake JohnsNikita Ovsyannikov

In-app purchases

10 purchases

ClusterSum

One-time10
  • Treasure Bag$4.99
  • Santa's Coin Sack$4.99
  • Vault Drop$9.99
Show 7 more
  • Holiday Weekend Boost$9.99
  • Long Weekend Vault$19.99
  • North Pole Mega Chest$19.99
  • King's Reserve$29.99
  • Royal Hoard$49.99
  • Imperial Vault$79.99
  • Mega Pack$99.99
None

When It Clicks

No in-app purchases

Questions

Is ClusterSum free?
ClusterSum is free to download, with in-app purchases available.
Is When It Clicks free?
When It Clicks is free to download, with no in-app purchases.
Do ClusterSum or When It Clicks have ads?
When It Clicks shows ads; ClusterSum does not.

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