# CalmCast vs REMAIN

The clearest difference is in-app purchases: CalmCast at none against REMAIN's 3. CalmCast also leads on update cadence (weekly vs monthly) and iOS requirement (18.5 vs 26.1). On price, ads and device support there is nothing between them.

Both are free to download. REMAIN sells 3 in-app purchases, starting at $2.49 per 7 days. CalmCast asks for nothing beyond the download.

CalmCast ships an update weekly, REMAIN monthly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CalmCast | REMAIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calmcast/id6751739279/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | — |
| Size | 270 MB | 29 MB |
| Requires iOS | **18.5** | 26.1 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Delattre](https://appshunter.io/developer/1804616372) | [Nahyun Park](https://appshunter.io/developer/1827041619) |

## What reviewers say

### CalmCast

[App page](https://appshunter.io/ios/app/calmcast/id6751739279)

Transform your environment into a sanctuary with a curated collection of nature and focus sounds. Enhance productivity, relaxation, and sleep with authentic recordings and background playback. Customize your sound library for a personalized experience.

**Highlights:** Authentic nature sound recordings, Focus and productivity ambient sounds, Sleep and relaxation soundscapes, Background playback functionality, Personalized sound library customization, Elegant light and dark themes

**Features:** macOS Compatibility

**In-app purchases:** none


### REMAIN

[App page](https://appshunter.io/ios/app/remain-days-left/id6793470752)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REMAIN Pro Weekly | $2.49 | per 7 days |
| REMAIN Pro Yearly | $29.99 | per year |
| REMAIN Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is CalmCast free?

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

### Is REMAIN free?

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

### Do CalmCast or REMAIN have ads?

Neither CalmCast nor REMAIN shows ads.

### Which is updated more often, CalmCast or REMAIN?

CalmCast ships an update weekly, and REMAIN monthly. Most recently, CalmCast was updated on October 28, 2026 and REMAIN on October 31, 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.*