# 3sec Diary vs REaD EyE

The clearest difference is review sentiment: REaD EyE at 100% against 3sec Diary's 60%. REaD EyE also leads on update cadence (every 5 weeks vs every 26 months). 3sec Diary's advantage is iOS requirement (12.0 vs 14.5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 3sec Diary sells 1 one-off in-app purchase and REaD EyE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

3sec Diary ships an update every 26 months, REaD EyE every 5 weeks. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 3sec Diary | REaD EyE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/read-eye/id1475074071/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 26 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 9 MB |
| Requires iOS | **12.0** | 14.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [KENJI KANEMOTO](https://appshunter.io/developer/402720982) | [Sasagawa Yoshihiro](https://appshunter.io/developer/1475074070) |

## 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 |


### REaD EyE

[App page](https://appshunter.io/ios/app/read-eye/id1475074071)

This app redefines reading by adapting text flow to an eye-shaped path, offering a more natural and comfortable experience. It supports various reading needs, from speed reading training to assistance for visual impairments.

**Highlights:** Eye-shaped text flow, Embedded web browser, Adjustable text movement, Speed reading training, Support for visual impairments, Customizable text assortment

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REaD EyE Upgrade | $9.99 | one-time |


## Frequently asked questions

### Is 3sec Diary free?

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

### Is REaD EyE free?

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

### Do 3sec Diary or REaD EyE have ads?

Both 3sec Diary and REaD EyE show ads.

### Which is updated more often, 3sec Diary or REaD EyE?

3sec Diary ships an update every 26 months, and REaD EyE every 5 weeks. Most recently, 3sec Diary was updated on October 4, 2026 and REaD EyE on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*