# Killdoku vs Prism Lines

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.

Both are free to download. Prism Lines sells 2 one-off in-app purchases. Killdoku asks for nothing beyond the download.

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.

## The numbers

| Metric | Killdoku | Prism Lines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/prism-lines/id6802463384/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 188 MB | 30 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Ted Maertzdorf](https://appshunter.io/developer/6800499130) | [Kyndlo LLC](https://appshunter.io/developer/1878300995) |

## What reviewers say

### Killdoku

[App page](https://appshunter.io/ios/app/killdoku/id6800499128)

**Features:** Vision Pro support

**In-app purchases:** none


### Prism Lines

[App page](https://appshunter.io/ios/app/prism-lines/id6802463384)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Forever | $2.99 | one-time |
| Supporter Pack | $5.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*