# Pust Focus vs Undulate

The clearest difference is update cadence: Undulate at every 9 days against Pust Focus's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Pust Focus ships an update every 2 months, Undulate every 9 days. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Pust Focus | Undulate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 21 MB | 1 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michael Justesen](https://appshunter.io/developer/1170835629) | [Abhishek Gawde](https://appshunter.io/developer/1853271112) |

## What reviewers say

### Pust Focus

[App page](https://appshunter.io/ios/app/pust-focus-breathing/id6757482354)

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $4.99 | one-time |


### Undulate

[App page](https://appshunter.io/ios/app/undulate/id6758805133)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Undulate Premium | $3.99 | one-time |


## Frequently asked questions

### Is Pust Focus free?

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

### Is Undulate free?

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

### Do Pust Focus or Undulate have ads?

Neither Pust Focus nor Undulate shows ads.

### Which is updated more often, Pust Focus or Undulate?

Pust Focus ships an update every 2 months, and Undulate every 9 days. Most recently, Pust Focus was updated on October 20, 2026 and Undulate on October 18, 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.*