Comparison

Killdoku vs Prism Lines

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

Head to head
About

Killdoku

Features
Read full description

Every room tells a story. Killdoku is a detective logic game where every clue matters. Place each person in the correct position, reconstruct the scene, and use pure deduction to determine who committed the murder. Investigate 480 carefully designed and validated cases across 14 distinctive dossiers. Four difficulty levels—from Easy to Extreme—let you choose between a quick deduction and a demanding 12×12 investigation. Features: - 480 cases: 120 Easy, 120 Medium, 120 Hard, and 120 Extreme - 14 distinctive detective dossiers - Progressive hints based on your current board - Theory Mode for safely testing a line of reasoning - Daily Case with a local archive - Local progress, statistics, and multiple in-progress cases - Dutch and English - High-contrast, large-text, Reduce Motion, coordinate, and high-visibility mark options - No ads, no account, and no in-app purchases Can you follow the clues, reconstruct the scene, and identify the murderer?

About

Prism Lines

A vibrant puzzle game offering multiple modes, from classic line-clearing to color-matching challenges. Master strategic moves, compete on leaderboards, and unlock new visual styles. Play offline or connect for online features.

Highlights
  • Classic line-clearing puzzles
  • Color-matching swipe challenges
  • Endless and daily game modes
  • Unlockable piece styles and effects
  • Game Center leaderboards and achievements
  • Optional hints and undo functionality
  • Offline play support
Features
Read full description

Make every move count in Prism Lines, a colorful puzzle game with several ways to play. CLASSIC LINES Place shapes to complete rows and columns. Build combos, chase level goals, and use helpful powers when you need them. PRISM CONNECT Swipe to slide matching colors together around obstacles. Plan your route, bank moves, and earn medals as you improve. PRISM RUSH Keep clearing lines in an endless Classic run and see how far your score can go. DAILY PRISM Play the same daily puzzle as everyone else and compete on the Game Center leaderboard. MORE TO DISCOVER Solve fixed-resource Workshop puzzles, two-color Connect Duets, a daily Connect challenge, and a six-stage Prism Journey. MASTER YOUR MOVES Earn five skill badges for clever play. Clear the board to advance through Fire, Ice, Water, Wood, and Diamond piece styles, with a higher score bonus at each step. Complete daily goals, collect fragments, and unlock colorful effects. • Game Center leaderboards and achievements • Optional powers, helpful hints, and undo • Progress saves automatically on your device • Play offline; online features require a connection • Choose Light, Dark, or follow your device's appearance Prism Lines is free to play. Optional rewarded videos offer a second chance or extra rewards at supported moments. You can skip videos and keep playing. Optional one-time purchases remove ads or unlock power items and cosmetic content. No subscription is required.

Screenshots

Killdoku4 screens
Prism Lines4 screens

Verdict

The call

The clearest difference is in-app purchases: Killdoku at none against Prism Lines's 2. Killdoku also leads on ads (none vs shown) and device support (3 vs 1). Prism Lines's advantage is update cadence (every 2 weeks vs every 5 weeks). On price 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. Prism Lines sells 2 one-off in-app purchases. Killdoku asks for nothing beyond the download.

UpkeepUpdate frequency

Killdoku ships an update every 5 weeks, Prism Lines every 2 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 4 level
Killdoku versus Prism Lines: the parameters behind the verdict, then further details
ParameterKilldokuPrism Lines
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size188 MB30 MB
Age rating12+12+
DeveloperTed MaertzdorfKyndlo LLC

In-app purchases

None

Killdoku

No in-app purchases

2 purchases

Prism Lines

One-time2
  • Ad-Free Forever$2.99
  • Supporter Pack$5.99

Questions

Is Killdoku free?
Killdoku is free to download, with no in-app purchases.
Is Prism Lines free?
Prism Lines is free to download, with in-app purchases available.
Do Killdoku or Prism Lines have ads?
Prism Lines shows ads; Killdoku does not.
Which is updated more often, Killdoku or Prism Lines?
Killdoku ships an update every 5 weeks, and Prism Lines every 2 weeks. Most recently, Killdoku was updated on October 31, 2026 and Prism Lines on October 25, 2026.

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