LectionX vs Ledor
LectionX
lectionx.comLedor
ledor.appSide by side
| Figure | LectionX | Ledor |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Speed Reading Apps | 7.5 (#19) | 8.7 (#3) |
| Languages | LectionX supports English and Spanish text and describes itself as designed for English and Spanish speakers. | The interface is available in English and Brazilian Portuguese. |
| Privacy | The maker says reading content stays on the user's device and is not stored or uploaded. | The privacy policy says Ledor collects no data and has no analytics, ads, tracking, accounts of its own, or servers of its own. |
| Reading controls | The reader offers adjustable words-per-minute speed, pause and resume controls, and focus-word highlighting. | TTS uses system voices, has lock-screen controls, and supports speeds from 0.5× to 3×. |
| What it does | LectionX is a science-based RSVP speed-reading app designed to help people read faster, stay focused, and understand more. | Ledor is an open-source speed reader for EPUB books and web articles using rapid serial visual presentation with an Optimal Recognition Point highlight. |
Plans
In their own words
Ledor
Ledor is a free, open-source reader for RSVP, EPUB files, and web articles, available on Android, iOS, Linux, and the web. It offers RSVP, text-to-speech narration, and a traditional e-reader mode. Readers can import EPUBs or save articles by URL; Android users can also share a page with the app. Text-to-speech uses system voices, provides lock-screen controls, and supports speeds from 0.5× to 3×. Appearance settings cover colors, fonts, sizes, and positions, with light and dark themes and a live preview.
Ledor works offline, storing books and progress on the device. Optional Google Drive sync can carry the library, progress, bookmarks, ratings, sessions, and display settings across devices. The privacy policy says the app collects no data and has no analytics, ads, tracking, accounts, or servers of its own. Weekly and monthly reading charts and a shareable monthly recap are calculated on the device. The MIT-licensed free plan includes all features, with no ads or account required.