# Bubble Calm vs Kanso

The clearest difference is update cadence: Bubble Calm at daily against Kanso's every 4 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Bubble Calm sells 1 one-off in-app purchase and Kanso sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Bubble Calm ships an update daily, Kanso every 4 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bubble Calm | Kanso |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 days |
| Size | 10 MB | 29 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [picturing bits](https://appshunter.io/developer/1799046832) | [Yutaro Kawahara](https://appshunter.io/developer/6776284160) |

## What reviewers say

### Bubble Calm

[App page](https://appshunter.io/ios/app/bubble-calm/id6757302485)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bubble Calm Plus | $1.99 | one-time |


### Kanso

[App page](https://appshunter.io/ios/app/kanso-minimal/id6798272712)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Koyomi | $3.99 | one-time |


## Frequently asked questions

### Is Bubble Calm free?

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

### Is Kanso free?

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

### Do Bubble Calm or Kanso have ads?

Neither Bubble Calm nor Kanso shows ads.

### Which is updated more often, Bubble Calm or Kanso?

Bubble Calm ships an update daily, and Kanso every 4 days. Most recently, Bubble Calm was updated on October 28, 2026 and Kanso on October 25, 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.*