# SMART PCB vs 이씨오 범용뷰어 3.0

The clearest difference is ads: 이씨오 범용뷰어 3.0 at none against SMART PCB's shown. 이씨오 범용뷰어 3.0 also leads on update cadence (every 2 months vs every 4 months). SMART PCB's advantage is iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SMART PCB ships an update every 4 months, 이씨오 범용뷰어 3.0 every 2 months. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SMART PCB | 이씨오 범용뷰어 3.0 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 7.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 39 MB | 98 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [The Coder](https://appshunter.io/developer/1205397694) | [(주)이씨오](https://appshunter.io/developer/371073988) |

## What reviewers say

### SMART PCB

[App page](https://appshunter.io/ios/app/smart-pcb/id1569390286)

**Features:** macOS Compatibility

**In-app purchases:** none


### 이씨오 범용뷰어 3.0

[App page](https://appshunter.io/ios/app/30/id6738065791)

This application allows users to read eBooks from ECO, Inc. Download and access your borrowed books anytime, anywhere. Essential for re-reading loaned digital content.

**Highlights:** Read eBooks, Download books, Access borrowed books, Anytime, anywhere access

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SMART PCB free?

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

### Is 이씨오 범용뷰어 3.0 free?

이씨오 범용뷰어 3.0 is free to download, with no in-app purchases.

### Do SMART PCB or 이씨오 범용뷰어 3.0 have ads?

SMART PCB shows ads; 이씨오 범용뷰어 3.0 does not.

### Which is updated more often, SMART PCB or 이씨오 범용뷰어 3.0?

SMART PCB ships an update every 4 months, and 이씨오 범용뷰어 3.0 every 2 months. Most recently, SMART PCB was updated on September 30, 2026 and 이씨오 범용뷰어 3.0 on October 16, 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.*