# STSS ePaper vs 4D2U Live

The clearest difference is update cadence: 4D2U Live at every 3 weeks against STSS ePaper's every 5 months. 4D2U Live also leads on iOS requirement (11.0 vs 15.6). On price, ads, 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.

STSS ePaper ships an update every 5 months, 4D2U Live every 3 weeks. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | STSS ePaper | 4D2U Live |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 73 MB | 33 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Code Squad Company](https://appshunter.io/developer/1565737933) | [Mun Hong Yam](https://appshunter.io/developer/1679152524) |

## What reviewers say

### STSS ePaper

[App page](https://appshunter.io/ios/app/stss-epaper/id6443798671)

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

**In-app purchases:** none


### 4D2U Live

[App page](https://appshunter.io/ios/app/4d2u-live/id6467018137)

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

**In-app purchases:** none


## Frequently asked questions

### Is STSS ePaper free?

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

### Is 4D2U Live free?

4D2U Live is free to download, with no in-app purchases.

### Do STSS ePaper or 4D2U Live have ads?

Neither STSS ePaper nor 4D2U Live shows ads.

### Which is updated more often, STSS ePaper or 4D2U Live?

STSS ePaper ships an update every 5 months, and 4D2U Live every 3 weeks. Most recently, STSS ePaper was updated on September 18, 2026 and 4D2U Live on September 20, 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.*