Comparison

Key Maker 3D vs Letter Jam!

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

Head to head
About

Key Maker 3D

Forge a perfect key to unlock hidden treasures. This game challenges your precision and execution to create a key that precisely fits and turns a lock. Experience the satisfying challenge of crafting the ideal key.

Highlights
  • Simple controls
  • Realistic key forging experience
  • Unlock hidden treasures
  • Precision carving mechanics
  • Challenging gameplay
Features
Read full description

Simple controls, a real experience. Make a flawless key and open the lock. Forging a key is not as easy as it sounds. Only with perfect execution can you carve a key that fits in, slides each of the lock pins into position, and turns to reveal the treasures hidden inside. Are you up to the task?

About

Letter Jam!

Features
Read full description

Embark on a brain-teasing journey with a physics-based word challenge! Strategically remove screws to unveil letters and construct words on the bench. Choose screws and letters in a right order to clean the board and create words to complete the levels. Test yourself with amazing brain teaser!

Screenshots

Key Maker 3D4 screens
Letter Jam!4 screens

Verdict

The call

The clearest difference is ads: Key Maker 3D at none against Letter Jam!'s shown. Key Maker 3D also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (9.0 vs 12.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Key Maker 3D ships an update every 6 days, Letter Jam! every 3 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 6 level
Key Maker 3D versus Letter Jam!: the parameters behind the verdict, then further details
ParameterKey Maker 3DLetter Jam!
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size308 MB95 MB
Age rating9+4+
DeveloperTakashi HidaCan Hulagu

In-app purchases

None

Key Maker 3D

No in-app purchases

None

Letter Jam!

No in-app purchases

Questions

Is Key Maker 3D free?
Key Maker 3D is free to download, with no in-app purchases.
Is Letter Jam! free?
Letter Jam! is free to download, with no in-app purchases.
Do Key Maker 3D or Letter Jam! have ads?
Letter Jam! shows ads; Key Maker 3D does not.
Which is updated more often, Key Maker 3D or Letter Jam!?
Key Maker 3D ships an update every 6 days, and Letter Jam! every 3 weeks. Most recently, Key Maker 3D was updated on November 3, 2026 and Letter Jam! on November 4, 2026.

Other comparisons