# 3lines.org vs Roller Short

The clearest difference is update cadence: 3lines.org at every 4 days against Roller Short's every 2 months. 3lines.org also leads on iOS requirement (9.0 vs 14.0). 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.

3lines.org ships an update every 4 days, Roller Short every 2 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 3lines.org | Roller Short |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (66 ratings)](https://appshunter.io/ios/app/3linesorg/id1352194221/reviews)** | — |
| Number of ratings | **66** | — |
| Positive reviews | 84.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | Free | — |
| Size | 66 MB | 45 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jon Hargett](https://appshunter.io/developer/1087189196) | [梦吉 张](https://appshunter.io/developer/1816571497) |

## What reviewers say

### 3lines.org

[App page](https://appshunter.io/ios/app/3linesorg/id1352194221)

Convert Chinese ePub files and web pages into a three-line format, adding romanization and translation. The converted documents can be saved as PDFs or copied for further use.

**Highlights:** ePub to three-line conversion, Add romanization (pinyin, Sidney Lau, Yale), Add native language translation (English, Spanish), Convert to PDF, Paste Chinese text, Import from URL

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

**In-app purchases:** none


### Roller Short

[App page](https://appshunter.io/ios/app/roller-short/id6748004767)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3lines.org free?

3lines.org is free to download, with no in-app purchases.

### Is Roller Short free?

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

### Do 3lines.org or Roller Short have ads?

Neither 3lines.org nor Roller Short shows ads.

### Which is updated more often, 3lines.org or Roller Short?

3lines.org ships an update every 4 days, and Roller Short every 2 months. Most recently, 3lines.org was updated on October 15, 2026 and Roller Short on October 14, 2026.

---

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