# One Second View vs Jamnyeom

The clearest difference is in-app purchases: Jamnyeom at none against One Second View's 3. Jamnyeom also leads on update cadence (weekly vs every 4 weeks) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. One Second View sells 3 in-app purchases, starting at $2.90 per month. Jamnyeom asks for nothing beyond the download.

One Second View ships an update every 4 weeks, Jamnyeom weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | One Second View | Jamnyeom |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 49 MB | 51 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHANG HAO LI](https://appshunter.io/developer/1882627276) | [youngjun yun](https://appshunter.io/developer/6778038340) |

## What reviewers say

### One Second View

[App page](https://appshunter.io/ios/app/one-second-view/id6760181098)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Second View Pro Monthly | $2.90 | per month |
| Annual Sanctuary (Save 50%) | $22.00 | per year |
| Lifetime Nirvana Access | $56.00 | one-time |


### Jamnyeom

[App page](https://appshunter.io/ios/app/jamnyeom-zen-sleep-sounds/id6778038338)

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

**In-app purchases:** none


## Frequently asked questions

### Is One Second View free?

One Second View is free to download, with in-app purchases available.

### Is Jamnyeom free?

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

### Do One Second View or Jamnyeom have ads?

Neither One Second View nor Jamnyeom shows ads.

### Which is updated more often, One Second View or Jamnyeom?

One Second View ships an update every 4 weeks, and Jamnyeom weekly. Most recently, One Second View was updated on October 31, 2026 and Jamnyeom 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.*