# Bigbrain Soroban vs Onllearning 4.0

The clearest difference is in-app purchases: Onllearning 4.0 at none against Bigbrain Soroban's 1. Onllearning 4.0 also leads on iOS requirement (12.0 vs 15.0). Bigbrain Soroban's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Bigbrain Soroban sells 1 one-off in-app purchase. Onllearning 4.0 asks for nothing beyond the download.

Bigbrain Soroban ships an update every 4 days, Onllearning 4.0 every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bigbrain Soroban | Onllearning 4.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/bigbrain-soroban/id1563917231/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 234 MB | 66 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TAM TRI LUC TRAINING JOINT STOCK COMPANY](https://appshunter.io/developer/1448811815) | [Binh Nguyen](https://appshunter.io/developer/1659967996) |

## What reviewers say

### Bigbrain Soroban

[App page](https://appshunter.io/ios/app/bigbrain-soroban/id1563917231)

This educational app helps children develop super-fast mental calculation skills and comprehensive brain thinking. Designed by leading experts, it uses lessons to foster a love for math, improve concentration, and enhance creativity and memory.

**Highlights:** Develop super-fast mental calculation, Enhance comprehensive brain thinking, Improve concentration and focus, Stimulate and balance brain hemisphere development, Boost creativity and memory, Interactive lessons with visual aids

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phiên bản đầy đủ | $89.99 | one-time |


### Onllearning 4.0

[App page](https://appshunter.io/ios/app/onllearning-40/id1592060835)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bigbrain Soroban free?

Bigbrain Soroban is free to download, with in-app purchases available.

### Is Onllearning 4.0 free?

Onllearning 4.0 is free to download, with no in-app purchases.

### Do Bigbrain Soroban or Onllearning 4.0 have ads?

Neither Bigbrain Soroban nor Onllearning 4.0 shows ads.

### Which is updated more often, Bigbrain Soroban or Onllearning 4.0?

Bigbrain Soroban ships an update every 4 days, and Onllearning 4.0 every 2 weeks. Most recently, Bigbrain Soroban was updated on October 24, 2026 and Onllearning 4.0 on October 25, 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.*