# SOLOPRA vs フラッシュ暗算練習

The clearest difference is price: フラッシュ暗算練習 at Free against SOLOPRA's $4.99. フラッシュ暗算練習 also leads on iOS requirement (13.0 vs 16.2). SOLOPRA's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

フラッシュ暗算練習 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 | SOLOPRA | フラッシュ暗算練習 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/solopra/id6449710640/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 9 days |
| Monetization | Paid | — |
| Size | 1 MB | 28 MB |
| Requires iOS | 16.2 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Naoki Fujimura](https://appshunter.io/developer/1690172052) | [Katsuyuki Hayashi](https://appshunter.io/developer/1597263179) |

## What reviewers say

### 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


### フラッシュ暗算練習

[App page](https://appshunter.io/ios/app/id6477322637)

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

**In-app purchases:** none


## Frequently asked questions

### Is SOLOPRA free?

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

### Is フラッシュ暗算練習 free?

フラッシュ暗算練習 is free to download, with no in-app purchases.

### Do SOLOPRA or フラッシュ暗算練習 have ads?

フラッシュ暗算練習 shows ads; SOLOPRA does not.

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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.*