# The Harvard School vs Smart Abacus

The clearest difference is update cadence: Smart Abacus at every 11 days against The Harvard School's every 12 months. The Harvard School's advantage is iOS requirement (12.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Harvard School ships an update every 12 months, Smart Abacus every 11 days. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | The Harvard School | Smart Abacus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-abacus-mental-math/id6761702036/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 11 days** |
| Monetization | — | Free |
| Size | 41 MB | 50 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Waqas Dilshad Chohan](https://appshunter.io/developer/1612217863) | [ZerwOne Network, LLC](https://appshunter.io/developer/1792742872) |

## What reviewers say

### The Harvard School

[App page](https://appshunter.io/ios/app/the-harvard-school/id6602895263)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Abacus

[App page](https://appshunter.io/ios/app/smart-abacus-mental-math/id6761702036)

Master mental math using the Japanese Soroban method with interactive practice and structured lessons. Improve speed, focus, and accuracy through gamified milestones and progress tracking.

**Highlights:** Digital Soroban with realistic bead movement, Step-by-step learning paths, Flash Tests for speed and accuracy, Voice dictation for training, Progress tracking and insights, Gamified milestones and achievements

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

**In-app purchases:** none


## Frequently asked questions

### Is The Harvard School free?

The Harvard School is free to download, with no in-app purchases.

### Is Smart Abacus free?

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

### Do The Harvard School or Smart Abacus have ads?

Neither The Harvard School nor Smart Abacus shows ads.

### Which is updated more often, The Harvard School or Smart Abacus?

The Harvard School ships an update every 12 months, and Smart Abacus every 11 days. Most recently, The Harvard School was updated on October 27, 2026 and Smart Abacus on October 23, 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.*