# Abacus' brain Lite vs 3D Find the Differences

The clearest difference is review sentiment: 3D Find the Differences at 100% against Abacus' brain Lite's 56%. 3D Find the Differences also leads on rating (5.0 vs 2.0). Abacus' brain Lite's advantage is in-app purchases (none vs 7) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. 3D Find the Differences sells 7 one-off in-app purchases. Abacus' brain Lite asks for nothing beyond the download.

3D Find the Differences holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 56% of Abacus' brain Lite's written reviews are positive against 100% of 3D Find the Differences's.

Abacus' brain Lite ships an update every 9 days, 3D Find the Differences every 2 months. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Abacus' brain Lite | 3D Find the Differences |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/abacus-brain-lite/id382584167/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/3d-find-the-differences/id6670149693/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 56.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 247 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [POPPO STUDIO](https://appshunter.io/developer/304529440) | [ACTIONFIT](https://appshunter.io/developer/1516168822) |

## What reviewers say

### Abacus' brain Lite

[App page](https://appshunter.io/ios/app/abacus-brain-lite/id382584167)

This application helps users improve their mental calculation speed by simulating abacus use. It offers various levels of difficulty, progressing from single digits with longer time limits to faster calculations.

**Highlights:** Abacus simulation for mental calculation, Sequential addition of numbers, Adjustable difficulty levels, Flash mental calculation practice, Improve calculation speed

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

**In-app purchases:** none


### 3D Find the Differences

[App page](https://appshunter.io/ios/app/3d-find-the-differences/id6670149693)

Experience a unique twist on finding differences with this immersive 3D puzzle game. Rotate objects and explore detailed environments to spot subtle discrepancies, enhancing concentration and problem-solving skills.

**Highlights:** Immersive 3D environment, Rotate 3D objects to find differences, Enhances concentration and problem-solving, Brain training and observation skills, Various levels and difficulty, Collect items and build collections, Hint system for difficult puzzles

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads+500 coins | $0.99 | one-time |
| 500 Coins | $0.99 | one-time |
| 1,500 Coins | $4.99 | one-time |
| 3,800 Coins | $8.99 | one-time |
| 8,200 Coins | $14.99 | one-time |
| 17,000 Coins | $34.99 | one-time |
| 35,000 Coins | $59.99 | one-time |


## Frequently asked questions

### Is Abacus' brain Lite free?

Abacus' brain Lite is free to download, with no in-app purchases.

### Is 3D Find the Differences free?

3D Find the Differences is free to download, with in-app purchases available.

### Which has better reviews, Abacus' brain Lite or 3D Find the Differences?

3D Find the Differences is rated higher. Abacus' brain Lite averages 2.0 out of 5 from 1 ratings, while 3D Find the Differences averages 5.0 from 2 ratings.

### Do Abacus' brain Lite or 3D Find the Differences have ads?

3D Find the Differences shows ads; Abacus' brain Lite does not.

### Which is updated more often, Abacus' brain Lite or 3D Find the Differences?

Abacus' brain Lite ships an update every 9 days, and 3D Find the Differences every 2 months. Most recently, Abacus' brain Lite was updated on September 30, 2026 and 3D Find the Differences on October 10, 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.*