Retia — for iPhone Paris · 42 School · 2026
Read like always.Understand like never.
Retia slips into the iOS share menu and gives you, in a single tap, the missing background of an article — the thread, the related ideas, the keywords worth digging into. Without leaving your reading.
Download on theApp Store Soon See the demo →
Follow the thread
01
The problem
“We read a huge amount, and we understand half as much as we think we do.” Tristan — co-founder of Retia
A name that rings no bell. An acronym never spelled out. A claim you can't quite place. The article assumes you already know — and moves on without you.
So you open tabs. Five, ten. You search, you drift, and you never quite make it back to the article.
02
The gesture
- 01
Read
An article, anywhere — Safari, your news app, a link someone sent.
- 02
Share
Tap Share, pick Retia. It's the only gesture to learn — and you already know it.
- 03
Understand
The sheet slides up: the background, the essentials, the keywords. Without ever leaving the page.
Retia 03
The result
Context
What the article assumes you already know: the background, placed and sourced, before you even judge the text.
Synthesis
What to take away — crossing the article with its context, blind spots included.
The article, reread
The text itself, lit up: every keyword opens with a tap, definition attached.
Try it here
In the app, key notions respond to a tap — like in this example.
Keyword
Universal income
A regular payment, unconditional and with nothing asked in return, to every member of a political community. The idea runs through political philosophy since Thomas More; it is back today, carried by the automation debate.
04 · Meanwhile
The analysis follows you, even locked.
Put your phone away: the analysis keeps going, and its progress shows live on the Lock Screen and in the Dynamic Island. A notification tells you when the context is ready.
LIVE ACTIVITY · DYNAMIC ISLAND · NOTIFICATION
05
When?
Every time you read.
No account. No ads. Without leaving your reading.
Coming soon
Give your reading some context.
Retia is coming to the App Store. Meanwhile, the demo shows you exactly what the app does.
Download on theApp Store Soon Try the demo →
iOS · Free · No account