# echor｜Idea Notes & Quotes vs 밑줄

The clearest difference is in-app purchases: echor｜Idea Notes & Quotes at none against 밑줄's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 밑줄 sells 2 in-app purchases, starting at $2.99 per month. echor｜Idea Notes & Quotes asks for nothing beyond the download.

echor｜Idea Notes & Quotes ships an update every 8 days, 밑줄 every 9 days. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | echor｜Idea Notes & Quotes | 밑줄 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 9 days |
| Size | 24 MB | 53 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [dannpen](https://appshunter.io/developer/1896768853) | [yosep lim](https://appshunter.io/developer/6792509203) |

## What reviewers say

### echor｜Idea Notes & Quotes

[App page](https://appshunter.io/ios/app/echoridea-notes-and-quotes/id6771013945)

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

**In-app purchases:** none


### 밑줄

[App page](https://appshunter.io/ios/app/id6801996052)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 월간 이용권 | $2.99 | per month |
| 연간 이용권 | $29.99 | per year |


## Frequently asked questions

### Is echor｜Idea Notes & Quotes free?

echor｜Idea Notes & Quotes is free to download, with no in-app purchases.

### Is 밑줄 free?

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

### Do echor｜Idea Notes & Quotes or 밑줄 have ads?

Neither echor｜Idea Notes & Quotes nor 밑줄 shows ads.

### Which is updated more often, echor｜Idea Notes & Quotes or 밑줄?

echor｜Idea Notes & Quotes ships an update every 8 days, and 밑줄 every 9 days. Most recently, echor｜Idea Notes & Quotes was updated on October 11, 2026 and 밑줄 on September 30, 2026.

---

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