Losing your place
Long paragraphs and dense pages make it easy to drift and re-read the same line.
Listening and reading together
Many readers find it easier to follow a hard text when they hear it and see it at the same time. Aethel highlights each sentence as it is read, lets you change the speed precisely, and reads equations in words instead of skipping them.
Five books and an hour of narration free. No card needed.
Long paragraphs and dense pages make it easy to drift and re-read the same line.
Screen readers and generic voices often handle equations badly, which shuts readers out of STEM material.
Some passages need to be slower than others.
The current sentence is highlighted as it is read. Tap any sentence to continue from there.
Choose any speed from 0.8× to 2.5×, in small steps.
Formulas are spoken, and figures and tables get a short description.
A dark theme and a warm paper theme reduce glare during long sessions.
These are produced live by the same speech engine the app uses. Press Listen to hear them in your device's voice; in the app you choose a studio or ElevenLabs voice.
x = (−b ± √(b² − 4ac)) / 2a
Aethel says
x equals the quantity negative b plus or minus the square root of the quantity b squared minus 4ac, over 2a
P(A|B) = P(B|A) P(A) / P(B)
Aethel says
P of A given B equals P of B given A, times P of A, over P of B
No. It is a reading tool for long technical texts and works alongside assistive technology. If something in the app doesn't work with your setup, please tell us.
Yes. Accessibility offices and libraries can contact us through the partners page.
Free to start: five books and an hour of narration, no card needed.