# YOUKAMI vs 3 Second

The clearest difference is rating: YOUKAMI at 4.8 against 3 Second's 4.0. YOUKAMI also leads on ratings volume (77 vs 4) and device support (3 vs 1). 3 Second's advantage is ads (none vs shown) and update cadence (daily vs every 2 weeks). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. YOUKAMI sells 4 one-off in-app purchases and 3 Second sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

YOUKAMI holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: YOUKAMI has 77 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 92% of YOUKAMI's written reviews are positive against 95% of 3 Second's, so the app with the better star average is not the one people write more warmly about.

YOUKAMI ships an update every 2 weeks, 3 Second daily. The most recent releases landed on September 19, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | YOUKAMI | 3 Second |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (77 ratings)](https://appshunter.io/ios/app/youkami/id1207147864/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/3-second-diary-short-form/id6740769130/reviews) |
| Number of ratings | **77** | 4 |
| Positive reviews | 91.5% of reviews | **94.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 266 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NOTEGG Corp.](https://appshunter.io/developer/1090697757) | [Cheol Kim](https://appshunter.io/developer/1252540990) |

## What reviewers say

### YOUKAMI

[App page](https://appshunter.io/ios/app/youkami/id1207147864)

Create a personal picture diary with custom drawings and hashtags. This app allows you to express emotions through visual journaling and offers a simple interface for freeform entries. New illustrations are added regularly.

**Highlights:** Picture diary creation, Custom drawings by illustrators, Hashtag functionality, Emotional journaling, Freeform entries, Regular updates with new art

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited drawing | $0.99 | one-time |
| Unlimited number of daily diar | $0.99 | one-time |
| Unlimited number of diary page | $0.99 | one-time |
| Unlimted regist photo | $0.99 | one-time |


### 3 Second

[App page](https://appshunter.io/ios/app/3-second-diary-short-form/id6740769130)

Easily capture and organize daily moments with short video clips. This app simplifies journaling by focusing on brief recordings, offering features like automatic sorting, mood filters, and time-lapse views to help you revisit memories and track your personal growth.

**Highlights:** Quick 3-second video recording, Automatic calendar view, Mood-enhancing filters, Monthly & yearly timelapse, Time Machine for past dates

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| YesToDay Premium | $3.99 | per month |
| YesToDay Premium | $19.99 | per year |
| Yearly Special Price | $19.99 | per year |
| Upgrade Lifetime | $19.99 | one-time |
| Upgrade Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is YOUKAMI free?

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

### Is 3 Second free?

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

### Which has better reviews, YOUKAMI or 3 Second?

YOUKAMI is rated higher. YOUKAMI averages 4.8 out of 5 from 77 ratings, while 3 Second averages 4.0 from 4 ratings.

### Do YOUKAMI or 3 Second have ads?

YOUKAMI shows ads; 3 Second does not.

### Which is updated more often, YOUKAMI or 3 Second?

YOUKAMI ships an update every 2 weeks, and 3 Second daily. Most recently, YOUKAMI was updated on September 19, 2026 and 3 Second on September 1, 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.*