ReadFocus+ Reading Ruler

ReadFocus+ is an Android reading assistance app that overlays a semi-transparent band on the screen to make "the line you're currently reading" clear and easy to follow. It's not limited to a specific reader app—it works on top of any app including e-books, PDFs, browsers, news apps, and manga.

It's a tool for doing on your smartphone screen what you would do with a ruler or bookmark when reading a paper book—keeping track of your place on the page.

Two Modes

• Line Highlight (Reading Ruler): Emphasizes the line you're reading by overlaying a band on it
• Reading Mask: Darkens the area outside your reading range, making surrounding lines less noticeable

You can adjust the height, transparency, and color of the band.

For People Like:

• Those who skip lines or re-read the same line while reading
• People with dyslexia or ADHD who find it difficult to track long text visually
• Those who frequently read long-form content on smartphones (papers, e-books, articles)

※ This is a tool to help you keep track of where you're reading, not a treatment or cure.

Pricing

• Free to use (with ads, up to 60 minutes per session)
• Pro (subscription or one-time purchase): Ad-free, unlimited time, all color themes
• Watch a short video ad to try Pro features for 24 hours
• No account registration required

Links

• Windows version (Microsoft Store): https://apps.microsoft.com/detail/9NMSHKKX3R5C
• Background on how it was created (note): https://note.com/codedac/n/n5a834bcfd827
• Overlay implementation notes (Qiita): https://qiita.com/CodeDAC/items/eee4232f9890ffee01f3
• Introduction page: https://codedac.com/ja/apps/readfocus.html