# 3lines.org vs Lightning Sync

The clearest difference is review sentiment: 3lines.org at 85% against Lightning Sync's 33%. 3lines.org also leads on rating (4.6 vs 1.0) and in-app purchases (none vs 3). Lightning Sync's advantage is update cadence (every 2 days vs every 4 days). On price, ads and device support there is nothing between them.

Both are free to download. Lightning Sync sells 3 in-app purchases, starting at $3.99 per 3 months. 3lines.org asks for nothing beyond the download.

3lines.org holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: 3lines.org has 66 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of 3lines.org's written reviews are positive against 33% of Lightning Sync's.

3lines.org ships an update every 4 days, Lightning Sync every 2 days. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 3lines.org | Lightning Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (66 ratings)](https://appshunter.io/ios/app/3linesorg/id1352194221/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/lightning-sync/id6742749461/reviews) |
| Number of ratings | **66** | 1 |
| Positive reviews | **84.8% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 66 MB | 4 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jon Hargett](https://appshunter.io/developer/1087189196) | [振强 劳](https://appshunter.io/developer/1515679559) |

## 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


### Lightning Sync

[App page](https://appshunter.io/ios/app/lightning-sync/id6742749461)

Access your iOS device's photos from your PC's web browser. Easily browse, convert images to JPG/PNG, and download them in batches. Unlock premium features with a subscription for enhanced functionality.

**Highlights:** Access photos from PC web browser, Convert images to PNG/JPG, Batch download photos/videos, Preview photos/videos, Setup web server on iOS device

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months Premium Access | $3.99 | per 3 months |
| 6 Months Premium Access | $4.99 | per 6 months |
| Yearly Premium Access | $9.99 | per year |


## Frequently asked questions

### Is 3lines.org free?

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

### Is Lightning Sync free?

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

### Which has better reviews, 3lines.org or Lightning Sync?

3lines.org is rated higher. 3lines.org averages 4.6 out of 5 from 66 ratings, while Lightning Sync averages 1.0 from 1 ratings.

### Do 3lines.org or Lightning Sync have ads?

Neither 3lines.org nor Lightning Sync shows ads.

### Which is updated more often, 3lines.org or Lightning Sync?

3lines.org ships an update every 4 days, and Lightning Sync every 2 days. Most recently, 3lines.org was updated on October 6, 2026 and Lightning Sync on September 24, 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.*