# What's The Difference? Spot Hidden Differences vs Poly Worlds

The clearest difference is rating: Poly Worlds at 5.0 against What's The Difference? Spot Hidden Differences's 1.0. Poly Worlds also leads on in-app purchases (none vs 2) and update cadence (weekly vs every 3 months). What's The Difference? Spot Hidden Differences's advantage is ads (none vs shown) and iOS requirement (9.0 vs 15.0). On price, ratings volume and device support there is nothing between them.

Both are free to download. What's The Difference? Spot Hidden Differences sells 2 one-off in-app purchases. Poly Worlds asks for nothing beyond the download.

Poly Worlds holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

What's The Difference? Spot Hidden Differences ships an update every 3 months, Poly Worlds weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | What's The Difference? Spot Hidden Differences | Poly Worlds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/whats-the-difference-spot-hidden-differences/id523509202/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/poly-worlds-hidden-object/id6749450133/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 21 MB | 191 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Digital Bananas, LLC](https://appshunter.io/developer/424070738) | [BugFix Games Entertainment](https://appshunter.io/developer/1689361525) |

## What reviewers say

### What's The Difference? Spot Hidden Differences

[App page](https://appshunter.io/ios/app/whats-the-difference-spot-hidden-differences/id523509202)

A highly addictive matching game where players must find hidden objects and spot differences in pictures before time runs out. Successfully finding differences increases your time, while incorrect guesses decrease it. It's a fun puzzle game suitable for all ages.

**Highlights:** Timed challenges, Hidden object hunting, Spot the difference gameplay, Increasing time with correct guesses, Decreasing time with incorrect guesses, Sliding images for easy photohunting

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Answers | $0.99 | one-time |


### Poly Worlds

[App page](https://appshunter.io/ios/app/poly-worlds-hidden-object/id6749450133)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is What's The Difference? Spot Hidden Differences free?

What's The Difference? Spot Hidden Differences is free to download, with in-app purchases available.

### Is Poly Worlds free?

Poly Worlds is free to download, with no in-app purchases.

### Which has better reviews, What's The Difference? Spot Hidden Differences or Poly Worlds?

Poly Worlds is rated higher. What's The Difference? Spot Hidden Differences averages 1.0 out of 5 from 1 ratings, while Poly Worlds averages 5.0 from 1 ratings.

### Do What's The Difference? Spot Hidden Differences or Poly Worlds have ads?

Poly Worlds shows ads; What's The Difference? Spot Hidden Differences does not.

### Which is updated more often, What's The Difference? Spot Hidden Differences or Poly Worlds?

What's The Difference? Spot Hidden Differences ships an update every 3 months, and Poly Worlds weekly. Most recently, What's The Difference? Spot Hidden Differences was updated on October 23, 2026 and Poly Worlds on October 24, 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.*