# 3sec Diary vs MODE Notes

The clearest difference is ads: MODE Notes at none against 3sec Diary's shown. MODE Notes also leads on update cadence (every 4 months vs every 26 months). 3sec Diary's advantage is iOS requirement (12.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 3sec Diary sells 1 one-off in-app purchase and MODE Notes sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

3sec Diary ships an update every 26 months, MODE Notes every 4 months. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 3sec Diary | MODE Notes |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 26 months | **Every 4 months** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 2 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KENJI KANEMOTO](https://appshunter.io/developer/402720982) | [ImagineSpark Inc.](https://appshunter.io/developer/1517195068) |

## What reviewers say

### 3sec Diary

[App page](https://appshunter.io/ios/app/3sec-diary/id985967203)

Quickly log daily activities and feelings in just three seconds. Your entries are securely stored in your iPhone Calendar, ensuring data safety and easy access. This tool helps you preserve memories and makes research and sharing effortless.

**Highlights:** 3-second daily logging, Calendar integration, Secure data storage, Easy research and sharing, Memory preservation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Eliminate Ads | $0.99 | one-time |


### MODE Notes

[App page](https://appshunter.io/ios/app/mode-notes-plaintxtbulletjnl/id6746349947)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Entitlement | $0.99 | per month |
| Yearly Entitlement | $9.99 | per year |


## Frequently asked questions

### Is 3sec Diary free?

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

### Is MODE Notes free?

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

### Do 3sec Diary or MODE Notes have ads?

3sec Diary shows ads; MODE Notes does not.

### Which is updated more often, 3sec Diary or MODE Notes?

3sec Diary ships an update every 26 months, and MODE Notes every 4 months. Most recently, 3sec Diary was updated on October 4, 2026 and MODE Notes on October 3, 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.*