# DDRハイスピ計算機 vs Ritmi・Just Dance Now・Challenge

The clearest difference is in-app purchases: DDRハイスピ計算機 at none against Ritmi・Just Dance Now・Challenge's 10. Ritmi・Just Dance Now・Challenge's advantage is device support and iOS requirement (12.0 vs 16.0). On price there is nothing between them.

Both are free to download. Ritmi・Just Dance Now・Challenge sells 10 one-off in-app purchases. DDRハイスピ計算機 asks for nothing beyond the download.

## The numbers

| Metric | DDRハイスピ計算機 | Ritmi・Just Dance Now・Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (6 ratings)](https://appshunter.io/ios/app/ritmijust-dance-nowchallenge/id6453470245/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 319 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Koichi Umekawa](https://appshunter.io/developer/1680447783) | [Ritmi Games](https://appshunter.io/developer/1699349512) |

## What reviewers say

### DDRハイスピ計算機

[App page](https://appshunter.io/ios/app/ddr/id6447161158)

**In-app purchases:** none


### Ritmi・Just Dance Now・Challenge

[App page](https://appshunter.io/ios/app/ritmijust-dance-nowchallenge/id6453470245)

Engage in exciting dance battles and win prizes in this motion-based rhythm game. Follow on-screen prompts to match dance moves with the music, customize your avatar, and compete in weekly challenges.

**Highlights:** Motion-based dance gameplay, Dance battles and challenges, Avatar customization, Leaderboard system, PVP and Co-op modes, Weekly events and prizes

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CookieCoin | $0.99 | one-time |
| Red CATSbro | $0.99 | one-time |
| Pink CATSbro | $0.99 | one-time |
| Blue EnergUP | $0.99 | one-time |
| ChocoCoin | $0.99 | one-time |
| Standard Kit | $1.99 | one-time |
| Newbie Starter Kit | $2.99 | one-time |
| Advanced Kit | $3.99 | one-time |
| Dance Pass Premium | $8.99 | one-time |
| Premium Kit | $11.99 | one-time |


## Frequently asked questions

### Is DDRハイスピ計算機 free?

DDRハイスピ計算機 is free to download, with no in-app purchases.

### Is Ritmi・Just Dance Now・Challenge free?

Ritmi・Just Dance Now・Challenge is free to download, with in-app purchases available.

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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.*