# CIRCULATING KIND WORLD vs NumRush

The clearest difference is in-app purchases: NumRush at none against CIRCULATING KIND WORLD's 1. NumRush also leads on update cadence (every 2 months vs every 18 months) and device support. CIRCULATING KIND WORLD's advantage is iOS requirement (13.0 vs 15.1). On price there is nothing between them.

Both are free to download. CIRCULATING KIND WORLD sells 1 one-off in-app purchase. NumRush asks for nothing beyond the download.

CIRCULATING KIND WORLD ships an update every 18 months, NumRush every 2 months. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | CIRCULATING KIND WORLD | NumRush |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | Yes |
| Update frequency | Every 18 months | **Every 2 months** |
| Size | 49 MB | 51 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wada System, K.K](https://appshunter.io/developer/576215741) | [Waffle, LCC](https://appshunter.io/developer/1777946699) |

## What reviewers say

### CIRCULATING KIND WORLD

[App page](https://appshunter.io/ios/app/circulating-kind-world/id6670584574)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove restrictions | $9.99 | one-time |


### NumRush

[App page](https://appshunter.io/ios/app/numrush/id6760337718)

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

**In-app purchases:** none


## Frequently asked questions

### Is CIRCULATING KIND WORLD free?

CIRCULATING KIND WORLD is free to download, with in-app purchases available.

### Is NumRush free?

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

### Which is updated more often, CIRCULATING KIND WORLD or NumRush?

CIRCULATING KIND WORLD ships an update every 18 months, and NumRush every 2 months. Most recently, CIRCULATING KIND WORLD was updated on November 8, 2026 and NumRush on November 9, 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.*