# Differences Online vs ColorEcho

The clearest difference is in-app purchases: ColorEcho at none against Differences Online's 10. ColorEcho also leads on ads (none vs shown) and update cadence (every 4 days vs monthly). Differences Online's advantage is iOS requirement (13.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Differences Online sells 10 one-off in-app purchases. ColorEcho asks for nothing beyond the download.

Differences Online ships an update monthly, ColorEcho every 4 days. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Differences Online | ColorEcho |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/differences-onlinefind-games/id1499112966/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 23.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 158 MB | 3 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Brightika, Inc.](https://appshunter.io/developer/1545142276) | [pouya zarpak](https://appshunter.io/developer/1844500168) |

## What reviewers say

### Differences Online

[App page](https://appshunter.io/ios/app/differences-onlinefind-games/id1499112966)

Compete with others to find differences in images and earn rewards. Enjoy bright pictures, various difficulty levels, and the ability to zoom in for detail. Play with family or friends, or relax without time limits.

**Highlights:** Spot differences in images, Compete with real players, Earn rewards and collections, High-quality pictures, Adjustable difficulty, Zoom in/out for detail, No time limits option

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 coins | $0.99 | one-time |
| 20 coins | $1.99 | one-time |
| 110 coins | $4.99 | one-time |
| 230 coins | $9.99 | one-time |
| Special offer! | $14.99 | one-time |
| 580 coins | $24.99 | one-time |
| Special offer! | $29.99 | one-time |
| 1200 coins | $49.99 | one-time |
| Special offer! | $59.99 | one-time |
| 2450 coins | $99.99 | one-time |

**What reviewers like**

- 🚀 Fast-paced and competitive
- 🤯 Challenging and mind-stimulating
- 🥳 Fun and exciting

**What reviewers complain about**

- 🐛 Frequent freezing and crashing issues
- 🤬 Frustrating glitches and bugs
- ⏳ Long loading times and connection problems
- 💰 Issues with in-app purchases and rewards

**Reported bugs**

- Game freezes during rounds and between rounds
- Incorrect ranking and rewards displayed
- Purchased coins not credited
- Levels and progress not loading properly
- Accounts and progress being reset or lost

**Requested features**

- Fix freezing and crashing issues
- Improve stability and performance
- Reduce duration of notification popups
- Provide better customer support


### ColorEcho

[App page](https://appshunter.io/ios/app/colorecho-memory/id6753874173)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Differences Online free?

Differences Online is free to download, with in-app purchases available.

### Is ColorEcho free?

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

### Do Differences Online or ColorEcho have ads?

Differences Online shows ads; ColorEcho does not.

### Which is updated more often, Differences Online or ColorEcho?

Differences Online ships an update monthly, and ColorEcho every 4 days. Most recently, Differences Online was updated on October 15, 2026 and ColorEcho on October 6, 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.*