# What's the difference? Online vs Difference Detective

The clearest difference is in-app purchases: Difference Detective at none against What's the difference? Online's 19. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. What's the difference? Online sells 16 one-off in-app purchases. Difference Detective asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 19, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | What's the difference? Online | Difference Detective |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 173 MB | 185 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ganza Games](https://appshunter.io/developer/1752461961) | [长城 缪](https://appshunter.io/developer/1815974426) |

## What reviewers say

### What's the difference? Online

[App page](https://appshunter.io/ios/app/whats-the-difference-online/id6737412773)

Engage in a classic spot-the-difference puzzle game with millions of players worldwide. Compete online, complete missions, and participate in weekly tournaments for prizes. Enjoy a vast collection of high-quality images across various themes.

**Highlights:** Online multiplayer mode, Thousands of levels and missions, Weekly tournaments with prizes, Diverse image themes, Family-friendly gameplay

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium gift 1 | $0.99 | one-time |
| Wheel of fortune | $1.99 | one-time |
| Gold lottery | $1.99 | one-time |
| Infinite Treasures | $2.79 | one-time |
| Explorer pack | $3.99 | one-time |
| Infinite Treasures | $4.19 | one-time |
| Infinite Treasures | $5.59 | one-time |
| Adventure Pack | $5.99 | one-time |
| Remove Ads | $7.89 | one-time |
| Elite Pack | $7.99 | one-time |
| Infinite Treasures | $9.59 | one-time |
| Champion Pack | $9.99 | one-time |
| Great gift 8 | $10.99 | one-time |
| Legendary Pack | $11.99 | one-time |
| Great gift 9 | $12.99 | one-time |
| Infinite Treasures | $15.90 | one-time |


### Difference Detective

[App page](https://appshunter.io/ios/app/difference-detective-spot-it/id6746324070)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is What's the difference? Online free?

What's the difference? Online is free to download, with in-app purchases available.

### Is Difference Detective free?

Difference Detective is free to download, with no in-app purchases.

### Do What's the difference? Online or Difference Detective have ads?

Neither What's the difference? Online nor Difference Detective shows ads.

### Which is updated more often, What's the difference? Online or Difference Detective?

What's the difference? Online ships an update every 3 weeks, and Difference Detective every 3 weeks. Most recently, What's the difference? Online was updated on October 19, 2026 and Difference Detective on September 21, 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.*