X Brain vs Readwise for X/Twitter Saves (2026 Comparison)
X Brain vs Readwise for X/Twitter Saves
TL;DR: These tools solve different halves of the same problem. Readwise is a highlights system for everything you read: books, articles, podcasts, and tweets you save going forward. X Brain is a one-purpose tool that imports your entire X like history from the official data archive and makes it searchable by meaning. The deciding question is whether you want your saves from here on, or the thousands you already have. Readwise is a subscription, X Brain is $19 once.
Pricing and integration behaviour below were checked against both vendors' own pages on 6 August 2026. Both products change, so verify before you buy.
The one difference that decides it
Readwise's X integration imports bookmarks after you connect it, on a once-a-day sync. Readwise's own documentation is explicit about the boundary: only new bookmarks saved after you enable the feature will import, and to get your old ones in you have to go back and re-bookmark them.
There is no path in Readwise for the archive of things you already saved. If you have liked four thousand posts over six years, Readwise starts you at zero.
X Brain works the other way. It reads the official X data archive, which contains your complete like history in one file, and processes all of it in a single pass. It has no live sync at all: when you want newer likes included, you download a fresh archive and upload it again.
So:
- Everything you save from now on, automatically: Readwise
- Everything you already saved, in one import: X Brain
Neither does both well, and no amount of feature comparison changes that.
What actually gets in
Readwise accepts tweets three ways: reply to a post with @readwiseio save, DM it to the account, or connect your X account so bookmarks import daily. Individual posts land as highlights. Threads go to Reader as articles.
X Brain accepts one thing: the ZIP file X gives you when you request your data archive. Inside it, like.js holds every post you have ever liked, with the post ID, its text, and a URL.
That file is also the source of X Brain's hard limits, and they are worth knowing before you pay:
- No author filtering.
like.jshas no author field. Filtering by who wrote a post is impossible without paid per-post X API lookups, which X Brain does not do. - No "date I liked it". The archive does not record it. Dates come from the post's publication time, recovered from the post ID.
- Bookmarks are unreliable. Newer archives export bookmarks as bare IDs with no text, and text is what makes a post searchable. Likes are the dependable source.
Readwise is not subject to any of this, because it captures posts live and keeps the author. If author filtering is the feature you actually want, Readwise is the better answer and this is the honest place to say so.
Pricing
| X Brain | Readwise Lite | Readwise Full | |
|---|---|---|---|
| Price | $19 one-time | $5.59/mo billed annually | $9.99/mo billed annually, $12.99 monthly |
| Trial | Free preview before paying | 30 days | 30 days |
| Obsidian export | Yes | No | Yes |
| AI provider cost | Your own key, typically $1 to $3 per archive | Included | Included |
X Brain's $19 buys the pipeline, not the AI. You bring an OpenAI, Anthropic, or Gemini key and pay that provider directly for embedding and classifying your archive. For most libraries that runs $1 to $3. It means the cost scales with your archive rather than being averaged across everyone, and it means the keys stay yours.
Over three years, Readwise Full billed annually comes to roughly $360. X Brain comes to $19 plus a few dollars of provider cost. That gap is real, but it buys different things: Readwise keeps working on everything you read, forever, and X Brain processes one archive.
Where Readwise is genuinely better
Comparison pages that find no merit in the competitor are not worth reading, so, plainly:
- Breadth. Kindle, Apple Books, articles, podcasts, PDFs, newsletters. X Brain reads one file format from one website.
- Spaced repetition. The daily review that resurfaces old highlights is Readwise's core idea and X Brain has no equivalent.
- It keeps the author. Because it captures live rather than from an archive.
- Reader. A genuinely good read-later app is bundled with Full.
- It is not a one-shot. Set it up once and new saves keep arriving.
If you want a reading system, buy Readwise. This is not a close call.
Where X Brain is genuinely better
- Your back catalogue. The years of likes Readwise structurally cannot reach.
- Semantic search over that catalogue. Ask for "that thread about hiring engineers" and get it without remembering a single exact word.
- Classification you did not do by hand. 15 knowledge domains and 65+ subcategories, assigned automatically, plus a key takeaway per post.
- An MCP server. Connect the library to Claude and ask questions about your own saved posts in conversation. Readwise has no equivalent.
- One payment. No renewal, no seat, no cancellation to remember.
Can you use both
Yes, and it is a reasonable setup. Run X Brain once on your archive to recover and organise the back catalogue, export it as an Obsidian vault, and let Readwise handle everything you save from that day forward. They do not conflict, because they are reading different things.
Frequently Asked Questions
Does Readwise import my old Twitter likes?
No. Readwise's X integration imports bookmarks saved after you connect the integration, on a daily sync, and its documentation states that older bookmarks require re-bookmarking to import. It does not read the X data archive, so historical likes are not reachable through it.
Does X Brain sync new likes automatically?
No. X Brain is archive-based, so new likes appear only when you download a fresh archive from X and upload it again. The trade is deliberate: it means no browser extension to break and no ongoing access to your account, but it also means there is no live sync.
Is X Brain cheaper than Readwise?
For a one-time import, substantially. X Brain is $19 once plus roughly $1 to $3 in AI provider costs using your own key. Readwise Full is $9.99 per month billed annually or $12.99 month to month. The comparison is only fair if you want what X Brain does, because Readwise keeps ingesting from every source you read.
Can both export to Obsidian?
Yes. Readwise Full includes Obsidian export, and so does X Brain. The difference is what ends up in the vault: Readwise exports the highlights it has collected since you connected it, while X Brain exports your whole like history as one Markdown note per post, with YAML frontmatter, tags, and category index notes.
Which one keeps the author of each tweet?
Readwise. It captures posts live, so the author travels with the post. X Brain reads the X archive, whose like.js file contains no author field at all, so author filtering is not available at any price short of per-post X API lookups.