# 极简备忘录 vs Secret Diary

The clearest difference is price: 极简备忘录 at Free against Secret Diary's $0.99. 极简备忘录 also leads on iOS requirement (10.0 vs 15.6). Secret Diary's advantage is update cadence (monthly vs every 17 months). On ads, in-app purchases and device support there is nothing between them.

极简备忘录 is free to download; Secret Diary costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

极简备忘录 ships an update every 17 months, Secret Diary monthly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 极简备忘录 | Secret Diary |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Monthly** |
| Monetization | — | Paid |
| Size | 38 MB | 8 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ma chunjing](https://appshunter.io/developer/1190765576) | [景 刘](https://appshunter.io/developer/1887860900) |

## What reviewers say

### 极简备忘录

[App page](https://appshunter.io/ios/app/id1243982801)

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

**In-app purchases:** none


### Secret Diary

[App page](https://appshunter.io/ios/app/secret-diary-notebook/id6761122036)

A secure, offline digital journal that prioritizes your privacy. Store thoughts locally with robust encryption and multimedia support. Export entries as PDFs for complete data ownership.

**Highlights:** True offline functionality, Local encryption with Face ID/Touch ID, Multimedia entries with multiple images, Calendar heatmap for recording frequency, Gentle, customizable writing reminders, One-click encrypted PDF export

**In-app purchases:** none


## Frequently asked questions

### Is 极简备忘录 free?

极简备忘录 is free to download, with no in-app purchases.

### Is Secret Diary free?

Secret Diary costs $0.99, with no in-app purchases.

### Do 极简备忘录 or Secret Diary have ads?

Neither 极简备忘录 nor Secret Diary shows ads.

### Which is updated more often, 极简备忘录 or Secret Diary?

极简备忘录 ships an update every 17 months, and Secret Diary monthly. Most recently, 极简备忘录 was updated on November 6, 2026 and Secret Diary 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.*