# 3 Second vs My Mark

The clearest difference is update cadence: 3 Second at daily against My Mark's fortnightly. My Mark's advantage is iOS requirement (15.1 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 3 Second sells 5 in-app purchases, starting at $3.99 per month and My Mark sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

3 Second ships an update daily, My Mark fortnightly. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 3 Second | My Mark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/3-second-diary-short-form/id6740769130/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 94.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 266 MB | 41 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cheol Kim](https://appshunter.io/developer/1252540990) | [MANOGARAN P](https://appshunter.io/developer/1224912486) |

## What reviewers say

### 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 |


### My Mark

[App page](https://appshunter.io/ios/app/my-mark-shadow-work-ai-diary/id6757134974)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $29.99 | one-time |


## Frequently asked questions

### Is 3 Second free?

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

### Is My Mark free?

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

### Do 3 Second or My Mark have ads?

Neither 3 Second nor My Mark shows ads.

### Which is updated more often, 3 Second or My Mark?

3 Second ships an update daily, and My Mark fortnightly. Most recently, 3 Second was updated on October 21, 2026 and My Mark on October 12, 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.*