3lines.org vs Lightning Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3lines.org
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.
- 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
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Import ePub files that are in Simplified or Traditional Chinese and then have them converted to add a romanization line (pinyin, Sidney Lau, Yale), and a native language line (English, Spanish). The document can then be converted to PDF. It is also possible to copy Chinese text and paste it into the app. In addition, you can copy a URL from the Safari web browser, and paste in the URL to pull up the entire web page in the app and then convert it to 3 lines.
Lightning Sync
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.
- Access photos from PC web browser
- Convert images to PNG/JPG
- Batch download photos/videos
- Preview photos/videos
- Setup web server on iOS device
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Lightning Sync helps you access your photos from your PC web browser.It setup a web server on your iOS device, and you can easily browse and download photos via web page.Its core features includes: convert image to PNG/JPG format, batch download, preview photos/videos. we offer three subscriptions: yearly,3 months,6 months, each subscription unlock all premium functions, such as batch images/videos download, and many new features that coming soon. terms of use: https://gitee.com/vctr/support/raw/master/termsOfUse
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | 3lines.org | Lightning Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (66 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 84.8% of reviews — better | 33.3% of reviews |
| Number of ratings | 66 — better | 1 |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 66 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Jon Hargett | 振强 劳 |
Customer experience
3lines.org
Lightning Sync
In-app purchases
3lines.org
No in-app purchases
Lightning Sync
- 3 Months Premium Access$3.993 Months
- 6 Months Premium Access$4.996 Months
- Yearly Premium Access$9.991 Year
