An accessibility tool for dyscalculia

Numbers on the web,
translated.

Assistive technology for adults with dyscalculia and the math anxiety that often comes with it. It turns prices, percentages, dates, and codes into plain context as you browse.

Add to Chrome — free See it working

What is dyscalculia?→

Grounded in dyscalculia research and built with adults who live with the condition.

adād on Spotify's premium page showing $12.99 per month translated to about $155.88 per year

The yearly cost, surfaced instantly.

$12.99 a month is really $155.88 a year. adād does the sum the moment you see the price, so a subscription can't look smaller than it is.

adād on Tripadvisor: an $825 price compared to anchors with bars, plus a pinned-numbers panel holding two saved, labelled prices

Built around your life.

Set the anchors that map to your life: a coffee, your rent, a favourite dinner, a streaming bill. Pin the numbers that matter to keep them on screen while you compare. Track time spans the same way.

adād reading back a tracking number on FedEx as 'seven six six, eight six six', with a type selector showing Code/ID, Money, Phone, Date, Quantity, and 'Check before submitting'

Read it back before you send it.

Long codes, account numbers, amounts, tracking IDs. adād shows them grouped, reads them aloud, and catches a wrong digit before submit.

adād on an Amazon product page: a $45 price opened into a compare panel showing it as smaller than a nice dinner out, about 30% of it, with bars against coffee, dinner and groceries

Every price, measured against your life.

$45 becomes "smaller than a nice dinner out, about 30% of it." Numbers stop being abstract and start meaning something.

An Amazon deals grid with adād tagging every price and reading every discount in plain scale

Quiet tags under every price.

Compare twenty products without holding numbers in your head. adād tags each one in plain scale.

adād annotating a Wikipedia article, turning percentages into plain scale and years into relative time

Plain context, anywhere on the web.

Percentages turned into "about a third". Years into "about 18 years ago". adād works on any page, not just shopping.

Also inside

The rest of the toolkit.

Pick numbers off the page

Click any number you see, then click another. adād compares them, totals them, or runs the math you need, right there.

Built-in calculator

A simple calculator on tap, so you never have to leave the page to do the sum.

Time calculator

Add and subtract durations, work out arrival times, convert minutes to hours without the headache.

Hover details

Read any single number in context without leaving the page.

Read aloud

Hear any number or comparison spoken back to you.

Time + dates

Turn dates, durations, and "how long ago" into usable distance.

Per-site control

Turn adād on only where you want it. Off everywhere else.

Your numbers stay yours

Nothing leaves your browser.

adād works entirely on your computer. It does not send your data anywhere.

Everything is processed locally, on your own computer.
Page text and form entries are never sent to a server.
What you type into a form is never saved.
No browsing history collected. No data sold. No ads.

Read the full privacy policy →

We ran the price through adād
$9 a month, translated.
The same plain-context treatment adād gives every number on the web. Turned on our own price.
vs. your life
about two coffeesless than a single takeaway lunch, every month
what it prevents
one misread numbera wrong amount or code can cost far more than adād
Access

The price of an accommodation, not a luxury.

adād is assistive technology. Practical support that makes a daily task workable, every time you open a browser.

Individual
$9/month

Full access across the web. Page Translate, compare-to-your-life, ongoing-cost translation, form read-back, pinned numbers, custom anchors, calculator, time calculator, and read-aloud.

Try every feature free for 7 days. Cancel anytime.

Add to Chrome — free
Gift adād

Know someone who freezes when numbers appear?

A partner, a parent, an adult child, a student, a friend. The people who'd use adād most often won't go looking for it, but you can hand it to them. Prepaid months, sent as a simple link.

3 months
$24
one-time
6 months
$48
one-time
Stay in touch

Get launch updates and feature news.

One short email a month. New features, what's in development, and what people with dyscalculia are asking for next.

Email us to subscribe

Or just send a quick note to adad.support@gmail.com