If you are here, you probably opened your Kindle app one day and the Word Runner button was not there any more. It was quietly removed, and Amazon never replaced it. The searches that lead to this page — “kindle word runner alternative”, “kindle word runner going away” — are mostly people trying to get a habit back.

This page is written by the people who make one of the alternatives, so take the recommendation with that in mind. The rest of it is not a sales pitch: it is what the research says, including the parts that argue against us.

What Word Runner actually did

It showed one word at a time in a fixed position, so your eyes did not move across the line. The technique predates Kindle by decades and is called RSVP — rapid serial visual presentation. Removing eye movement is the whole idea: instead of your gaze jumping between words, the words come to your gaze.

Some implementations, including ours, also align each word at its optimal recognition point — roughly the spot slightly left of centre where a reader identifies a word fastest. That alignment is the difference between words flashing at you and words landing in the same place.

What it did not do

It has not been shown to make people read three times faster with the same understanding. The studies differ in texts, speeds and questions:

  • In one Italian experiment, higher RSVP settings produced lower comprehension scores. Its displayed 400 words per minute was about 305 words per minute in actual reading time because of pauses.
  • A small English-language study found losses at very high RSVP settings, but did not establish that second-language readers were affected more than first-language readers.
  • Literal and inferential questions do not show a single universal order of failure. The kind of question matters.
  • “No eye movement means no eye strain” is not established. One study of a similar reader found the opposite: comprehension fell and visual fatigue rose alongside a lower blink rate. That observation does not establish one cause of the fatigue.

Normal text lets you look back at a difficult sentence; a one-word stream does not do that automatically. Some readers may prefer the fixed position, but it is not a proven attention treatment or a general comprehension improvement. If dense material does not stick, slow down or return to normal text.

What to look for in a replacement

  • A sane default speed. Anything that opens at 600 words per minute is selling a number, not a reading experience.
  • Your own files. Word Runner only worked on Kindle books. A replacement that opens EPUB, PDF and TXT is not tied to one store.
  • Punctuation pauses. Without a pause at sentence ends, sentences run together and comprehension drops for a reason that has nothing to do with speed.
  • Where your files go. Some readers upload your book to convert it. Check before you feed it a book you care about.

What we built

Punctum is an RSVP reader for your own TXT, PDF, EPUB, DOCX and DRM-free MOBI files. It cannot open Kindle books bought from Amazon, which are DRM-protected. It starts at 300 words per minute, offers adjustable language defaults, warns you above 400 as a product guardrail, and reads book files on your device without an upload. We wrote more about the trade-off in what RSVP reading actually does and whether speed reading hurts comprehension.

If you want the short version: it will not make you read three times faster. It will keep your eyes in one place, which for a lot of people is the thing that was missing.

References