# Minimum Circle vs ATISwim

The clearest difference is iOS requirement: Minimum Circle at 13.4 against ATISwim's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Minimum Circle ships an update weekly, ATISwim every 4 days. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Minimum Circle | ATISwim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Size | 1 MB | 1 MB |
| Requires iOS | **13.4** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Nishijima](https://appshunter.io/developer/1389796249) | [TAKUYA HIGUCHI](https://appshunter.io/developer/579952589) |

## What reviewers say

### Minimum Circle

[App page](https://appshunter.io/ios/app/minimum-circle/id1510203613)

**Features:** macOS Compatibility

**In-app purchases:** none


### ATISwim

[App page](https://appshunter.io/ios/app/atiswim/id6763877896)

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

**In-app purchases:** none


## Frequently asked questions

### Is Minimum Circle free?

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

### Is ATISwim free?

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

### Do Minimum Circle or ATISwim have ads?

Neither Minimum Circle nor ATISwim shows ads.

### Which is updated more often, Minimum Circle or ATISwim?

Minimum Circle ships an update weekly, and ATISwim every 4 days. Most recently, Minimum Circle was updated on October 3, 2026 and ATISwim on September 29, 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.*