Built for readers the web forgets.

• Typeface — including OpenDyslexic, Atkinson Hyperlegible and Lexend, all designed for readers who find ordinary type hard.
• Size, letter spacing, word spacing and line height, independently. Spacing is often what helps most, and most apps only offer size.
• Colour and contrast — several themes and tints, with the live contrast ratio shown so you can see whether a choice is still readable.
• Colour-vision preview — check any theme as it appears with protanopia, deuteranopia or tritanopia.
• Reading mask, word guide and syllable splitting, for holding a line or breaking a long word down.
• Plain words — swaps dense vocabulary for simpler equivalents without changing what a passage says.
• Read aloud, using the voices your device already has.

• Motion is optional. If your system asks for reduced motion, animation is switched off — including the page refraction and the drawing effects.
• Keyboard throughout. Every control can be reached and operated by keyboard, with a visible focus ring, and a skip link on each page.
• Colour is never the only signal. Highlight colours are named as well as shown, and the marker in use is stated in text.
• Touch targets are at least 44 px on phones.
• Nothing is timed. No control disappears on a timer, and auto-scroll only moves when you turn it on.
• It works offline, which matters if your connection is unreliable or metered.

Said plainly, because you will find these anyway and it is better to know first.

• Drawings are not described to a screen reader. Ink you draw on a page is visual only — a screen reader will not announce it. Highlights and notes are available as text.
• A PDF that is only scanned images has no text to read. NeuroLens does not do character recognition, so those pages are shown as pictures and cannot be reformatted, read aloud, or searched.
• Read-aloud quality depends on your device, not on us. Voices differ a great deal between platforms.
• Very old browsers are not supported. Reading a PDF in particular needs a reasonably current browser.

The app is built against WCAG 2.2 Level AA. That is the target it is designed and reviewed against; it has not been audited by an independent third party, and claiming conformance without one would be a stronger statement than the evidence supports.

Tell us — a specific barrier is worth more than any checklist. Get in touch and say what you were trying to do and what stopped you. Accessibility faults are treated as faults, not as feature requests.