# SOLOPRA vs ちょこ暗 算数

The clearest difference is price: ちょこ暗 算数 at Free against SOLOPRA's $4.99. SOLOPRA's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

ちょこ暗 算数 is free to download; SOLOPRA costs $4.99 up front. ちょこ暗 算数 sells 2 in-app purchases, starting at $0.99 per month. SOLOPRA asks for nothing beyond the download.

## The numbers

| Metric | SOLOPRA | ちょこ暗 算数 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/solopra/id6449710640/reviews)** | — |
| Number of ratings | **10** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | Paid | — |
| Size | 1 MB | 15 MB |
| Requires iOS | **16.2** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Naoki Fujimura](https://appshunter.io/developer/1690172052) | [Always Sunny Ltd.](https://appshunter.io/developer/572443468) |

## 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


### ちょこ暗 算数

[App page](https://appshunter.io/ios/app/id6469766855)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン | $0.99 | per month |
| 年額プラン | $4.99 | per year |


## Frequently asked questions

### Is SOLOPRA free?

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

### Is ちょこ暗 算数 free?

ちょこ暗 算数 is free to download, with in-app purchases available.

### Do SOLOPRA or ちょこ暗 算数 have ads?

Neither SOLOPRA nor ちょこ暗 算数 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.*