# そろばん学習ドリル Ext vs SOLOPRA

The clearest difference is price: そろばん学習ドリル Ext at Free against SOLOPRA's $4.99. そろばん学習ドリル Ext also leads on iOS requirement (12.0 vs 16.2). On ads, in-app purchases and device support there is nothing between them.

そろばん学習ドリル Ext is free to download; SOLOPRA costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | そろばん学習ドリル Ext | SOLOPRA |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/solopra/id6449710640/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | **Free** | Paid |
| Size | 24 MB | 1 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ryo itou](https://appshunter.io/developer/1435019729) | [Naoki Fujimura](https://appshunter.io/developer/1690172052) |

## What reviewers say

### そろばん学習ドリル Ext

[App page](https://appshunter.io/ios/app/ext/id1449114393)

This app offers four courses to help beginners learn abacus calculation. It includes exercises for placing numbers, simple addition, addition of ten numbers, and auditory addition. Progress is tracked, and difficulty increases with proficiency.

**Highlights:** Placing numbers on the abacus, Two-digit addition practice, Addition of ten numbers, Auditory addition exercises, Progress tracking, Adaptive difficulty levels

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

**In-app purchases:** none


### SOLOPRA

[App page](https://appshunter.io/ios/app/solopra/id6449710640)

Create custom math problems for abacus and mental calculation practice. Supports addition, subtraction, mixed addition/subtraction, multiplication, division, and flash mental arithmetic with adjustable difficulty and speed.

**Highlights:** Customizable addition and subtraction problems, Adjustable difficulty for mixed addition/subtraction, Flexible multiplication and division settings, High-speed flash mental arithmetic mode, Personalizable display options for flash mode

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

**In-app purchases:** none


## Frequently asked questions

### Is そろばん学習ドリル Ext free?

そろばん学習ドリル Ext is free to download, with no in-app purchases.

### Is SOLOPRA free?

SOLOPRA costs $4.99, with no in-app purchases.

### Do そろばん学習ドリル Ext or SOLOPRA have ads?

Neither そろばん学習ドリル Ext nor SOLOPRA shows ads.

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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.*