# Singleton Quest vs Backdoor Dilemma

The clearest difference is in-app purchases: Singleton Quest at none against Backdoor Dilemma's 2. Singleton Quest also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Backdoor Dilemma sells 2 one-off in-app purchases. Singleton Quest asks for nothing beyond the download.

Singleton Quest ships an update monthly, Backdoor Dilemma every 2 weeks. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Singleton Quest | Backdoor Dilemma |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 453 MB | 1.4 GB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Homo Ludens GmbH](https://appshunter.io/developer/1521470669) | [Ahmed Alblowi](https://appshunter.io/developer/1893161840) |

## What reviewers say

### Singleton Quest

[App page](https://appshunter.io/ios/app/singleton-quest/id1585786497)

**Features:** macOS Compatibility

**In-app purchases:** none


### Backdoor Dilemma

[App page](https://appshunter.io/ios/app/backdoor-dilemma/id6762157014)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins 50 pack | $0.99 | one-time |
| Coins 500 pack | $7.99 | one-time |


## Frequently asked questions

### Is Singleton Quest free?

Singleton Quest is free to download, with no in-app purchases.

### Is Backdoor Dilemma free?

Backdoor Dilemma is free to download, with in-app purchases available.

### Do Singleton Quest or Backdoor Dilemma have ads?

Neither Singleton Quest nor Backdoor Dilemma shows ads.

### Which is updated more often, Singleton Quest or Backdoor Dilemma?

Singleton Quest ships an update monthly, and Backdoor Dilemma every 2 weeks. Most recently, Singleton Quest was updated on October 9, 2026 and Backdoor Dilemma on October 14, 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.*