A webpage shows 404
You see: 404 Not Found
Start with “the page could not be found,” then add likely causes and the next step—not a lecture on web terminology.
iPhone app released · Mac in development
Seamless AI in your flow
Learn as you build
Select the text or image that’s blocking you. The app keeps the original in scope and turns it into the core meaning, a plain-language explanation, and an example—so you can clear the blocker without interrupting your work.
Synthetic walkthrough · Not a real capture
Four everyday blockers
Not one more AI question—one less interruption.
These are simple examples of the situations the product is designed for. Answers depend on the source you provide; they are not canned results.
A document uses an unfamiliar term
You select: the unfamiliar phrase
Explain what it means in this passage, within the selected source—not just a dictionary definition.
The system rejects an action
You see: permission or access denied
Separate what happened, which permission is missing, and which safe next steps are worth trying.
The logic jumps too fast
You point to: the step that skips the reasoning
State the author's intent, contrast it with what actually happens, and fill in the skipped steps between.
Six workflow reinforcements
Keep work moving with understanding that stays on task.
Start exactly where you point
Selected text or a shared screenshot sets the scope, so you can move straight to the relevant explanation.
Context is already connected
The source, your angle, and the previous turn stay together, so a follow-up does not require another recap.
Get the shortest answer that moves work forward
Meaning, plain language, an example, and key points come first, keeping attention on the task in progress.
Keep the answer from sending work off course
Answers stay within the source and topic; weak screenshot evidence stops the flow before guessing sends work in the wrong direction.
Let the next question continue the same path
Follow-ups go one level deeper from the source and latest answer, carrying the current task forward.
Return to work on your terms
There is no separate AI workspace to manage; the understanding ledger and AI settings live right in the panel—understand, follow up, or return to the task at your own pace.
Product walkthrough
Watch 40 seconds, see the whole workflow.
One video walks through both the Mac and iPhone entry points using real settings and ledger screens—not an illustrated mockup.
Real app screenshots · Made locally with HyperFrames
Read the full transcript
- Ever stare at an error message and have no idea what it's actually telling you?
- Just select it, right click, and ask What Does This Mean.
- You get the core meaning, a plain explanation, and a real example, right where you're working.
- On iPhone, share a screenshot instead, and the explanation appears on its own.
- On supported devices, Apple's on-device model needs no setup. On Mac, Codex and Claude Code are optional after their official command-line tools are installed and signed in.
- Saved explanations are stored locally, searchable, and organized by topic. The ledger keeps the latest two thousand entries, and you can export them.
- Improve your workflow. Don't let blockers slow your progress.
Three uninterrupted steps
From what’s in front of you to the understanding you need to continue.
- 01
Point to what needs explaining
Select text on Mac, or screenshot and share on iPhone (text works too)—without first leaving the work at hand.
- 02
Get an explanation you can use
The app structures a short answer within the source boundary, then goes one level deeper only when needed.
- 03
Continue at your own pace
Once the explanation is enough, choose to follow up or return to what you were doing.
Mac and iPhone entry points
Use the shortest entry point for where the blocker appears.
Mac
Select text in an app that supports macOS Services, then open the explanation from the Services menu.
Current limit
The first release requires selectable text. Whether the Services menu appears still depends on the source app.
iPhone
Screenshot any screen and share it, or share selected text; the Share Extension receives only that item and explains on open.
Current limit
Screenshot understanding is still beta: the default path is on-device OCR plus visual cues; with per-share consent it can go to a cloud AI you configure.
Screenshot understanding (beta)
When the evidence is weak it stops instead of guessing.
The default path runs on device: OCR reads the text, visual cues assist, and weak evidence stops the answer instead of inviting a guess. With your explicit per-share consent, the image can also go to a cloud AI you configure yourself for direct visual analysis.
Privacy boundary
Process only what you provide, without pulling in the rest of your work.
No clipboard, screen, or Photo Library monitoring. Content is processed on device by default; an image leaves the device only after your explicit per-share consent. This site has no ads or behavioral analytics; its language cookie stores only zh-Hant, en, or ja and expires after 180 days.
Short FAQ
Know where it fits before you download.
Current status
The iPhone app is out; the Mac app is still a preview.
The iPhone app is a free download. Apple's on-device model is fully usable without any purchase; a one-time in-app purchase unlocks three cloud sources. The Mac direct-sale version is still being built and validated, and nothing can be bought on this site yet; screenshot understanding remains beta. The Mac price and terms of sale are already published on the pricing page and the seller information page.
01How is this different from opening a chat AI?
The difference is the entry point and answer constraints: your selected source becomes the question boundary, context stays with the same topic, and the first answer is kept short enough to continue working. It does not claim a smarter model or replace deep research and long-form chat.
02How is this different from a Chrome extension—and what if text cannot be selected?
It is designed around macOS Services and the iPhone Share Sheet rather than browser pages alone. The first Mac release depends on selectable text in the source app; on iPhone, screenshots are the primary path—capture any screen and ask, or share text when selection is available.
03Which AI sources can I use?
Apple's on-device model is the zero-setup default. You can also use an existing subscription through the official Codex, Claude Code, or Grok Build clients, and iPhone can connect your own official API. Every answer names the AI that produced it, and you can switch sources for just the current question without changing your default. The Mac app never accepts or stores a third-party API key.