It reads the sources so you don't
Litmus continuously ingests trusted changelogs, blogs, and curated news topics across tech, AI, design, politics, science, health, and markets.
Litmus · A Kan Labs app
Learn what matters.
Remember what you learn.
Litmus is a personal educator for curious professionals. It finds the signal, explains it at your level, gives you a short chance to apply it, and brings it back before you forget.
See Free & Pro
Free to start · Pro $9.99/month
A complete learning loop
A feed should build you,
A feed should build you,
not bury you.
Litmus uses your goals, role, starting level, available time, and feedback to choose less—and make each choice count.
- 01Choose
One relevant next step, ranked for your goal and time.
- 02Learn
A concise explanation with the original evidence attached.
- 03Apply
A short scenario or explanation that tests usable judgment.
- 04Retain
Adaptive recall before the idea fades from memory.
Goals with milestones
Mastery by concept
Recall scheduled intelligently
Evidence from real application
How it works
Feeds are broken.
Feeds are broken.
Litmus reads them for you.
The signal is buried in noise, hot takes, and 2,000-word posts — and the summarizers that promise to help are fast but shallow and unsourced. Litmus is built on the opposite premise: distilled but verifiable, and shaped to the reader.
It distills each story to its essence
The gist, what changed, and the key concepts — in a two-minute read. And it keeps the receipts: every summary carries its sources and the verbatim quotes behind each claim.
It explains things the way you learn
Tell Litmus your fields, your format — checklist, narrative, code-first, or visual — and your depth, TL;DR to deep. It renders each story for you, and re-explains any story differently in one tap.
Provenance is the product
Summaries that
Summaries that
show their work.
Every Litmus summary keeps the receipts. Open "Sources & what was simplified" on any story to see the verbatim quotes behind each claim, linked to the originals. Personalized reads are verified against the sources before you ever see them.
Signature feature
Don't just read it.
Don't just read it.
Understand it.
Tap Understand this on any story for a layered briefing that goes exactly as deep as you want — grounded in the cited sources, with the jargon explained plainly.
The perspectives layer is deliberately steelmanned: it presents the strongest version of each side — a progressive and a conservative reading of a court ruling, a bull and a bear case on a market story — without picking a winner.
Every briefing is footed with "Educational briefing — not advice."
- 1The gist — a 10-second read
- 2What happened
- 3Why it matters
- 4The perspectives — the strongest case on each side
- 5Established vs. contested
- 6The jargon — each term explained plainly
Fine-tuned to one person: you
Useful context in.
Useful context in.
Less noise out.
Your real goal is the filter
Role, industry, skills, target outcome, weekly time, current level, and blocked topics shape what reaches you—and what does not.
Apple Intelligence, on device
On supported devices, Litmus can turn a résumé or LinkedIn export into an editable learning profile locally. It does not use your cloud allowance.
It learns from evidence
“More like this,” “already know,” confidence, recall, and applied practice continuously tune difficulty, novelty, and the next best action.
Simple, sustainable pricing
Start free. Upgrade when
Start free. Upgrade when
you want the full educator.
No promo code. No trial clock. Free is an ongoing, useful preview; Pro expands the learning loop with clear limits that keep it fast and sustainable.
Free
A focused daily glimpse
$0 forever
- 3-item daily sourced briefing
- 1 active learning goal and basic progress
- 3 guided lessons and 3 cited Ask questions / month
- 1 new deep dive, live topic, and link import / month
- 10 saved items
- On-device Apple Intelligence where supported
Litmus Pro
Your full personal educator
$9.99 / month
or $89.99/year · about 25% less
- Up to 12 prioritized briefing items
- 3 goals and a full mastery, application, recall, and retention report
- 30 guided lessons / month · max 3/day
- 100 cited Ask questions / month · max 10/day
- 20 new deep dives / month · max 5/day
- 10 live topics / month · max 2/day
- 3 active topic monitors and 20 followed sources
- 10 imports / month · max 2/day · 500 saved items
Cached reads, reviews, and on-device features do not count against AI allowances. Prices shown in USD; App Store pricing may vary by region.
Who it's for
For people who refuse to
For people who refuse to
trade rigor for speed.
Engineers
Track framework releases, breaking changes, and tooling shifts without living in a dozen changelogs — with the exact quotes when you need to be sure.
Designers & creatives
Follow the tools and the craft — what shipped, what changed, and why it matters to your work, rendered visually if that's how you think.
Curious professionals
Actually understand politics, science, health, and markets — the strongest case on each side, what's settled vs. still contested — instead of skimming headlines.
Questions
Fair things to ask.
Where does the information come from?
From trusted changelogs, official blogs, and curated news topics. Every summary links its sources and quotes them verbatim — you can always read the original.
Why put limits on Pro?
Clear guardrails protect speed and quality—and make $9.99 sustainable. Cached reads, reviews, and on-device features remain available without using an allowance.
What does Apple Intelligence do?
On supported devices it helps turn your résumé or LinkedIn export into an editable learning profile locally. Core Litmus features work without it.
Learn deliberately
A calmer way to get smarter.
Litmus is in beta on iOS. Start with a useful Free account—no promo code—and decide whether the full Pro learning loop earns its place.
Litmus provides educational summaries and briefings, not professional, legal, medical, or financial advice.