Free
Enough for everyday, moderate reading.
$0free
- Saves per month
- 30
- AI units per day
- 10
- Library
- Unlimited
- All features
- Included
Personal knowledge library
LociArc keeps the links you read online, then extracts the content, writes a summary, classifies it by topic and builds a semantic index. When you need it, search in plain language and get answers cited from your own library.
Coming to iOS and Android. The Free plan needs no payment card.
- topics assigned automatically
- 13topics assigned automatically
- dimensions in each item's semantic vector
- 1,536dimensions in each item's semantic vector
- sources at most behind a single answer
- 8sources at most behind a single answer
- minute steps for scheduling the daily brief
- 15minute steps for scheduling the daily brief
Figure 01 · Processing pipeline
From a link to knowledge you can query
Every link passes through five stages. Each stage is recorded so the app can show progress in real time.
capture
Capture
Share from any app, save from the browser extension or send the link to the Telegram bot.
scraping
Extract
Fetch the page and pull out the main text, title and cover image. Articles, YouTube, X and images are recognised.
summarizing
Summarise and classify
Write a short summary, assign one of 13 topics, infer why it was saved and estimate reading time.
embedding
Index
Convert the content into a 1,536-dimension vector stored in PostgreSQL with an HNSW index.
succeeded
Ready
The item appears in your library, searchable by meaning and available as a source for questions.
iEach save uses 2 AI units. If processing stops part-way, unused units are refunded.
Figure 02 · Cited answers
Answers based only on what you have saved
Your question is matched semantically against the whole library. Only sufficiently relevant items are used as context, and every point in the answer links back to its source.
Says so when it does not know
If no item passes the similarity threshold, the system replies that your library has no information on it and refunds the question. No answers invented from outside knowledge.
- 01 · embed(q)Vectorise the question
- 02 · top_k = 8Retrieve the 8 nearest items
- 03 · cos > 0.4Filter by similarity threshold
- 04 · answer + [n]Compose with citations
Illustrative example
Summarise what I have saved about sleep and productivity.
top_kcos
- 10.82
- 20.74
- 30.61
- 40.38
- 50.33
- 60.27
- 70.22
- 80.18
Your saved articles agree on one point: getting 7 to 9 hours of sleep has a clearer effect on focus than working longer hours12. Two other pieces suggest a fixed wake-up time and limiting screen light in the hour before bed3.
Sources
- 1Does sleeping less let you get more done?0.82 similarity
- 2Evening habits of deep workers0.74 similarity
- 3Circadian rhythm and blue light0.61 similarity
Features
Every feature serves one job: finding and understanding again
Every plan includes all of the features below. Paid plans only extend capacity and usage limits.
01
Semantic search
Search by meaning rather than exact keywords. Typing “managing my time” still finds an article with a completely different title.
02
Ask your library
Ask in natural language and get an answer composed from several items, with numbered citations.
03
Knowledge Planet
Each topic is a bookshelf on a planet. One glance shows what you read most and what has been left behind.
04
Daily brief
A selection of unread items, led by the topic cluster you care about this week. Delivered by Telegram or email at your chosen time.
05
Memory Box and time capsule
Freeze a note on an article and get it back on the date you choose. The time capsule resurfaces what you saved exactly one year ago.
06
Save from anywhere
The share sheet on iOS and Android, an extension for Chrome, Edge and Brave, and a Telegram bot. One action and it is saved.
07
Sharing and export
Create a public link for a single item when needed. Export the whole library to JSON or Markdown at any time.
08
A structured library
Collections, stars and filters for today, unread and read. Read state is recorded when you open an item.
Figure 03 · Knowledge Planet
Your library, seen as a map
The Knowledge Planet encodes your library in three visual variables. You can see at once which topics take up your reading time and which have not been opened in a while.
- 1Shelf heightNumber of items in the topic
- 2BrightnessHow recently you saved
- 3SatellitesItems saved this week
Pricing
Three plans, one feature set
The difference is monthly saves and daily AI units. Saving an item uses 2 units; asking a question uses 2; a semantic search uses 1.
Pro
PopularFor people who read and save a lot every day.
$19.99/ year
≈ $1.67 / month
- Saves per month
- Generous (fair use 1,000)
- AI units per day
- 60
- Library
- Unlimited
- All features
- Included
AI units per day
The app is free to download; plans are bought on lociarc.com and sold yearly only. In Vietnam: VietQR from any banking app, once a year. Internationally: Pro by card via Dodo Payments, renewing yearly — cancel any time. Refunds within the first 7 days.
- Free10
- Student30
- Pro60
Security
Your data stays yours
LociArc runs no advertising SDKs, does not sell data and does not use your content to train models.
Encrypted in transit
Every connection uses TLS 1.2 or later, with HSTS.
Passwordless sign-in
A one-time email code that expires after 10 minutes, or sign in with Google or Apple.
Tokens stored securely
Kept in the iOS Keychain and Android encrypted storage, rotated on every refresh.
Full control
Export to JSON or Markdown. Delete your account and all its data from inside the app.
FAQ
Frequently asked questions
A bookmark only stores the address. LociArc reads the content, summarises, classifies and indexes each item semantically, so you can search by meaning and ask questions across your whole library instead of remembering titles.
Coming soon
Get notified when LociArc arrives on the App Store and Google Play
One email on release day. No marketing, and your address is never shared.
