# SIDO vs 더닝

The clearest difference is in-app purchases: 더닝 at none against SIDO's 2. SIDO's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. SIDO sells 2 in-app purchases, starting at $3.99 per month. 더닝 asks for nothing beyond the download.

SIDO ships an update every 6 days, 더닝 every 5 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | SIDO | 더닝 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 days | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 70 MB | 25 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AEJIN SEO](https://appshunter.io/developer/1896585301) | [JIHO PARK](https://appshunter.io/developer/6801068146) |

## What reviewers say

### SIDO

[App page](https://appshunter.io/ios/app/sido/id6768559309)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SIDO Pro 월간 | $3.99 | per month |
| SIDO Pro 연간 | $29.99 | per year |


### 더닝

[App page](https://appshunter.io/ios/app/id6801068144)

This app simplifies note-taking by allowing users to jot down thoughts and attach files. It automatically extracts titles, tasks, and deadlines, and provides timely reminders. Notes can be synced to your calendar and are stored locally for privacy.

**Highlights:** Effortless note-taking with AI organization, Automatic title, task, and deadline extraction, Intelligent reminders for deadlines and inactive notes, Calendar integration for deadlines, Local storage with optional cloud sync, Customizable reminder settings

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

**In-app purchases:** none


## Frequently asked questions

### Is SIDO free?

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

### Is 더닝 free?

더닝 is free to download, with no in-app purchases.

### Do SIDO or 더닝 have ads?

더닝 shows ads; SIDO does not.

### Which is updated more often, SIDO or 더닝?

SIDO ships an update every 6 days, and 더닝 every 5 days. Most recently, SIDO was updated on October 31, 2026 and 더닝 on November 6, 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.*