# Brain vs CircleKick

Brain and CircleKick are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Brain sells 8 one-off in-app purchases and CircleKick sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Brain ships an update every 8 days, CircleKick fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Brain | CircleKick |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Size | 163 MB | 13 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sungkyu Gil](https://appshunter.io/developer/1875909091) | [ROKONTECH LLC](https://appshunter.io/developer/1347808056) |

## What reviewers say

### Brain

[App page](https://appshunter.io/ios/app/brain-rush/id6758946157)

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 연필 5자루 | $0.49 | one-time |
| 연습노트 10개 | $0.49 | one-time |
| 연필 20개 | $0.99 | one-time |
| 연필 20자루 | $1.99 | one-time |
| 광고 제거 | $1.99 | one-time |
| 닉네임 변경권 | $2.99 | one-time |
| 연습노트 100개 | $5.99 | one-time |
| 연필 100자루 | $9.99 | one-time |


### CircleKick

[App page](https://appshunter.io/ios/app/circlekick/id6762089329)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $0.99 | one-time |
| Pro | $2.99 | one-time |
| Legend | $4.99 | one-time |


## Frequently asked questions

### Is Brain free?

Brain is free to download, with in-app purchases available.

### Is CircleKick free?

CircleKick is free to download, with in-app purchases available.

### Do Brain or CircleKick have ads?

Neither Brain nor CircleKick shows ads.

### Which is updated more often, Brain or CircleKick?

Brain ships an update every 8 days, and CircleKick fortnightly. Most recently, Brain was updated on October 25, 2026 and CircleKick on October 28, 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.*