# Interlude vs Calm SOS

The clearest difference is update cadence: Interlude at every 3 weeks against Calm SOS's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Interlude sells 3 in-app purchases, starting at $0.99 per month and Calm SOS sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Interlude ships an update every 3 weeks, Calm SOS every 3 months. The most recent releases landed on September 12, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Interlude | Calm SOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 11 MB | 65 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Timothee Jouve](https://appshunter.io/developer/1755399050) | [THIERRY VICTOR E DE BELDER](https://appshunter.io/developer/1831371632) |

## What reviewers say

### Interlude

[App page](https://appshunter.io/ios/app/interlude-mindful-wait/id6508167679)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Lifetime | $1.99 | one-time |
| Premium Lifetime | $4.99 | one-time |


### Calm SOS

[App page](https://appshunter.io/ios/app/calm-sos/id6751938184)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $5.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is Interlude free?

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

### Is Calm SOS free?

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

### Do Interlude or Calm SOS have ads?

Neither Interlude nor Calm SOS shows ads.

### Which is updated more often, Interlude or Calm SOS?

Interlude ships an update every 3 weeks, and Calm SOS every 3 months. Most recently, Interlude was updated on September 12, 2026 and Calm SOS on September 17, 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.*