# Number Spy vs The Quest for Knowledge

The clearest difference is update cadence: The Quest for Knowledge at every 11 days against Number Spy's every 5 weeks. The Quest for Knowledge also leads on iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Number Spy ships an update every 5 weeks, The Quest for Knowledge every 11 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Number Spy | The Quest for Knowledge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/number-spy/id1645702377/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Monetization | Free | — |
| Size | 20 MB | 6 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Neil Rohan](https://appshunter.io/developer/1522614743) | [NapTech Lab](https://appshunter.io/developer/1561520677) |

## What reviewers say

### Number Spy

[App page](https://appshunter.io/ios/app/number-spy/id1645702377)

A number guessing game where players hunt for a mystery number between 1 and 999. Compete against friends or AI opponents using visual clues and hint arrows to find the target number first.

**Highlights:** Mystery number hunt, AI opponents (Average, Smart, Peeking), WiFi multiplayer mode, Customizable game settings, Hint arrows and range indicators, Parental peek feature

**Features:** macOS Compatibility

**In-app purchases:** none


### The Quest for Knowledge

[App page](https://appshunter.io/ios/app/the-quest-for-knowledge/id6504160543)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Number Spy free?

Number Spy is free to download, with no in-app purchases.

### Is The Quest for Knowledge free?

The Quest for Knowledge is free to download, with no in-app purchases.

### Do Number Spy or The Quest for Knowledge have ads?

Neither Number Spy nor The Quest for Knowledge shows ads.

### Which is updated more often, Number Spy or The Quest for Knowledge?

Number Spy ships an update every 5 weeks, and The Quest for Knowledge every 11 days. Most recently, Number Spy was updated on October 18, 2026 and The Quest for Knowledge on October 15, 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.*