3lines.org vs Heel2Toe Mobile Dock Station
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.
Heel2Toe Mobile Dock Station
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Heel2Toe is a therapeutic wearable that attaches to the side of your shoe and delivers positive auditory feedback each time you make a good step. Heel2Toe automates a physiotherapy gait training strategy: place your heel first when walking. This simple strategy lengthens your stride and changes a stooped, shuffling gait pattern to one that is upright and striding. Walk-BEST (BEtter, Faster, Longer, STronger) with Heel2toe, led by physiotherapy professionals and professors from McGill University in Canada, and University of Exeter in the UK.
Screenshots
Verdict
The clearest difference is update cadence: 3lines.org at every 4 days against Heel2Toe Mobile Dock Station's every 3 months. 3lines.org also leads on iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
3lines.org ships an update every 4 days, Heel2Toe Mobile Dock Station every 3 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.
| Parameter | 3lines.org | Heel2Toe Mobile Dock Station |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (66 ratings) — better | — |
| Positive reviews | 84.8% of reviews | — |
| Number of ratings | 66 — better | — |
| Update frequency | Every 4 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 66 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Jon Hargett | Edward Hill |
In-app purchases
3lines.org
No in-app purchases
Heel2Toe Mobile Dock Station
No in-app purchases
Questions
Is 3lines.org free?
Is Heel2Toe Mobile Dock Station free?
Do 3lines.org or Heel2Toe Mobile Dock Station have ads?
Which is updated more often, 3lines.org or Heel2Toe Mobile Dock Station?
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