# Spot the Differences vs Riddle test

The clearest difference is in-app purchases: Spot the Differences at none against Riddle test's 10. Spot the Differences also leads on ads (none vs shown) and iOS requirement (6.0 vs 15.0). Riddle test's advantage is update cadence (every 2 days vs every 7 months) and review sentiment (100% vs 87%). On price and device support there is nothing between them.

Both are free to download. Riddle test sells 7 one-off in-app purchases. Spot the Differences asks for nothing beyond the download.

Spot the Differences ships an update every 7 months, Riddle test every 2 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Spot the Differences | Riddle test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (16 ratings)](https://appshunter.io/ios/app/spot-the-differences-find-hidden-object-games/id805395943/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 87.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 221 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [StarRiver Co., Ltd.](https://appshunter.io/developer/563494178) | [KATAPS, TOO](https://appshunter.io/developer/1767618987) |

## What reviewers say

### Spot the Differences

[App page](https://appshunter.io/ios/app/spot-the-differences-find-hidden-object-games/id805395943)

Engage in an addictive puzzle experience with over 1000 challenging stages and three distinct gameplay modes. Discover hidden objects within beautifully designed, high-definition images for hours of fun.

**Highlights:** 1000+ puzzle stages, 3 gameplay modes, Hidden object challenges, High-definition images, Addictive puzzle design

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

**In-app purchases:** none


### Riddle test

[App page](https://appshunter.io/ios/app/riddle-test/id6670793549)

This game challenges your mind with unique riddles that defy conventional logic. Prepare to question your assumptions and think unconventionally to solve tricky puzzles. It's a test of adaptability and intellect, where the most unexpected answers are often the correct ones.

**Highlights:** Unique and unconventional riddles, Challenging puzzles that defy logic, Tests adaptability and unconventional thinking, Unexpected and surprising answers, Engaging brain game experience

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crystals | $3.99 | one-time |
| Unlock all Riddles | $3.99 | one-time |
| No Ads | $3.99 | one-time |
| Crystals Pack #2 | $4.99 | one-time |
| Crystals + No Ads | $4.99 | one-time |
| Crystals Pack #3 | $5.99 | one-time |
| Crystals Pack #4 | $6.99 | one-time |


## Frequently asked questions

### Is Spot the Differences free?

Spot the Differences is free to download, with no in-app purchases.

### Is Riddle test free?

Riddle test is free to download, with in-app purchases available.

### Do Spot the Differences or Riddle test have ads?

Riddle test shows ads; Spot the Differences does not.

### Which is updated more often, Spot the Differences or Riddle test?

Spot the Differences ships an update every 7 months, and Riddle test every 2 days. Most recently, Spot the Differences was updated on October 15, 2026 and Riddle test 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.*