# Cold Case Bureau vs ONE KILLER LEFT

The clearest difference is in-app purchases: Cold Case Bureau at none against ONE KILLER LEFT's 2. Cold Case Bureau also leads on ads (none vs shown). ONE KILLER LEFT's advantage is update cadence (every 4 days vs every 2 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. ONE KILLER LEFT sells 2 one-off in-app purchases. Cold Case Bureau asks for nothing beyond the download.

Cold Case Bureau ships an update every 2 months, ONE KILLER LEFT every 4 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Cold Case Bureau | ONE KILLER LEFT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (9 ratings)](https://appshunter.io/ios/app/cold-case-bureau/id6775644891/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 21 MB | 41 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [Thomas Masters](https://appshunter.io/developer/6773804308) | [RICARDO GONZALEZ ESCALERA](https://appshunter.io/developer/6804354567) |

## What reviewers say

### Cold Case Bureau

[App page](https://appshunter.io/ios/app/cold-case-bureau/id6775644891)

Engage in a slow-paced mystery game where you analyze case files, evidence, and suspect testimonies to uncover contradictions. Piece together clues on your investigation board to solve crimes and advance your detective career through increasingly challenging tiers.

**Highlights:** Analyze case files and evidence, Identify contradictions in testimonies, Use an investigation board, Progress through difficulty tiers, Offline play, Reputation system

**In-app purchases:** none


### ONE KILLER LEFT

[App page](https://appshunter.io/ios/app/one-killer-left/id6804354565)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Discards | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Cold Case Bureau free?

Cold Case Bureau is free to download, with no in-app purchases.

### Is ONE KILLER LEFT free?

ONE KILLER LEFT is free to download, with in-app purchases available.

### Do Cold Case Bureau or ONE KILLER LEFT have ads?

ONE KILLER LEFT shows ads; Cold Case Bureau does not.

### Which is updated more often, Cold Case Bureau or ONE KILLER LEFT?

Cold Case Bureau ships an update every 2 months, and ONE KILLER LEFT every 4 days. Most recently, Cold Case Bureau was updated on October 23, 2026 and ONE KILLER LEFT on October 8, 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.*