# DuoCal vs 10年日記

The clearest difference is review sentiment: DuoCal at 100% against 10年日記's 0%. DuoCal also leads on iOS requirement (12.0 vs 18.0). 10年日記's advantage is update cadence (every 6 days vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. DuoCal sells 2 one-off in-app purchases and 10年日記 sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

DuoCal ships an update every 3 months, 10年日記 every 6 days. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | DuoCal | 10年日記 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duocal/id1502205499/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 39 MB | 163 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WAZAnauts LLC](https://appshunter.io/developer/1452730041) | [LFT Inc.](https://appshunter.io/developer/1776796858) |

## What reviewers say

### DuoCal

[App page](https://appshunter.io/ios/app/duocal/id1502205499)

Compare monthly calendars side-by-side from different years or months. Organize events with customizable labels and share your schedule with others. Syncs with iOS and Google calendars.

**Highlights:** Side-by-side calendar view, Multiple calendar creation, Calendar sharing via Dropbox, iOS and Google Calendar sync, Customizable labels with colors and sizes, Label templates, Memos separate from dates

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Import Palu calendars | $0.99 | one-time |
| Remove Ads | $8.99 | one-time |


### 10年日記

[App page](https://appshunter.io/ios/app/10/id6746846382)

This app helps you track your personal growth over a decade by visualizing journal entries from the same date across 10 years. It offers comprehensive recording options, including voice input, photos, mood, and weather tracking, with robust privacy features and AI-powered analysis.

**Highlights:** 10-Year Timeline View, Voice recognition and photo attachments, Weather and mood tracking, Face ID/Touch ID authentication, AI emotion analysis and text summarization, PDF export

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Years Diary Premium Monthly | $1.99 | per month |
| 10 Years Diary Premium Yearly | $14.99 | per year |


## Frequently asked questions

### Is DuoCal free?

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

### Is 10年日記 free?

10年日記 is free to download, with in-app purchases available.

### Do DuoCal or 10年日記 have ads?

Both DuoCal and 10年日記 show ads.

### Which is updated more often, DuoCal or 10年日記?

DuoCal ships an update every 3 months, and 10年日記 every 6 days. Most recently, DuoCal was updated on October 2, 2026 and 10年日記 on October 19, 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.*