Explore

Remember what you read.
Use it when it matters.

For nonfiction readers whose highlights and notes still aren’t becoming usable knowledge.

Use it for the chapters worth remembering. A focused check takes about six minutes.

After a chapter worth remembering
  1. 01
    Close the book and explain it

    Start with what you can recall in your own words.

  2. 02
    Find out what you actually understood

    Get feedback grounded in the source, not a generic summary.

  3. 03
    Work through one weak spot

    Take a focused challenge before the missing connection fades.

  4. 04
    Bring the idea back later

    Review what matters until you can explain and use it.

For readers with a system already

Your highlights aren’t the problem. Retrieval is.

01

Stop losing the useful framework

Recover the argument before it becomes another highlight you never revisit.

02

Know whether you understood it

Compare your explanation with the source and see the exact connection that needs work.

03

Use more of what you read

Bring important ideas back when you’re ready to explain, recommend, decide, or lead.

Built for people who already highlight, annotate, or keep notes, but still struggle to explain the book a month later.

Beyond notes and highlights

Turn a finished chapter into knowledge you can explain.

Ember adds the missing layer after reading: retrieval, evidence-grounded feedback, focused practice, and review.

01 · Recall

Explain it before you look back.

Your own words reveal what recognition can hide.
02 · Compare

See the strongest thread and the useful gap.

✓Central idea recovered
↗Relationship needs another pass
03 · Challenge

Push the one idea that matters.

How do these two ideas depend on one another?
Take the challenge →
04 · Review

Return before the idea fades.

Previous gapRecovered
Central claimDeveloping
Next review adapts to the weaker result.
05 · Practice

Build the skill behind the gap.

✓You got itCentral claim found
Short exercises improve transferable reading skills.
Make your reading system earn its keep

See what your notes app can’t tell you.

Kindle, Readwise, Notion, and Obsidian help you save ideas. Ember helps you discover whether you can still explain them and what to strengthen next.

  • ✓ Find the framework you would otherwise forget
  • ✓ See recurring weak spots across chapters
  • ✓ Practice the reading skill behind the gap
  • ✓ Build proof that an idea lasted
What’s sticking?

You consistently recover central claims.

Your next opportunity is making the relationship between supporting ideas more explicit.

Central claims · strong
Recommended practice

Connect two ideas

This pattern appeared in three chapter checks. Try a focused three-minute activity.

Start practice →
Delayed proof

You remembered this two weeks later.

The central argument from your earlier chapter check returned strongly.

14 days ✓
Build the skill, not just the memory

Become a more precise, durable reader.

Ember notices the kinds of comprehension work that repeatedly give you trouble, then reinforces one skill at a time until it holds up in your real reading.

01

Find the central claim

Separate what a chapter discusses from what the author actually wants you to believe.

02

Connect ideas

Explain how two concepts support, cause, limit, or contradict one another.

03

Evaluate evidence

Recognize which examples and reasons truly support an argument and which merely sound related.

04

Build clear explanations

Move from claim to reason to example in language you can use in a meeting, memo, or decision.

05

Calibrate your confidence

Learn when your sense of understanding matches what you can actually retrieve and explain.

06

Apply ideas with judgment

Test where an argument is useful, where it breaks, and how it should change what you do.

1Spot the patternChapter checks reveal a recurring gap.
2Practice dailyOne focused question builds the skill.
3Prove it holdsLater chapters and reviews test transfer.
Questions serious readers ask

Useful effort, without another complicated system.

Ember is intentionally selective. It should earn the extra minutes it asks from you.

Do I need to check every chapter?

No. Use Ember for high-value chapters containing ideas you want to remember, explain, or apply.

Does this replace Kindle, Readwise, Notion, or Obsidian?

No. Those tools help you capture and organize. Ember helps you test whether the captured ideas became usable knowledge.

Is this an AI book-summary tool?

No. You begin with your own recall. Feedback is compared with source material you provide and points back to its evidence.

How much time does a chapter check take?

The target is about six minutes. Daily skill practice takes roughly three minutes, and you can skip or reschedule reviews.

Can I trust the evaluation?

Treat it as directional guidance, not an objective grade. Ember exposes evidence, labels partial sources, and lets you disagree or edit.

For the books you want to change how you work

The next time a chapter matters, don’t just highlight it.

Find out whether you can explain it before it becomes another idea you know you read somewhere.

© 2026 Ember. All rights reserved.
Up next

Review queue

Recent

Chapter checks

Skill focus

Find the central claim

Learn to separate what a passage discusses from what its author actually argues.

0 of 3 successful days
Delayed proof

Reviews

Start with what is ready now. Everything else is grouped so it can wait.

One skill at a time

Daily practice

One focused question each day. Build reliable skill before moving to the next one.

Today’s skill

Find the central claim

Practice separating what a passage discusses from what its author actually argues.

0 of 3 successful days
3 min
Your sequence

Build one skill at a time

Recommended order
Quick lesson

Topic is not the same as claim

A topic names what a passage is about. A central claim tells you what the author wants you to believe about that topic.

Worked example

Topic: Public transportation

Claim: Cities should prioritize reliable bus service before investing in more expensive transit projects.

Today’s question

What is this passage arguing?

Many workplaces treat fast replies as evidence of commitment. Yet constant responsiveness fragments attention and pushes demanding work into evenings. Teams should establish shared response windows so employees can protect focused time without leaving colleagues uncertain.
How it works

A small learning loop for the chapters that matter.

You do not need to process every page. Use Ember when a chapter contains an argument, framework, or idea you want to carry into your work.

01

Recall before looking

Close the book and explain the chapter in your own words. This reveals what you can retrieve, not merely recognize.

02

Compare with the source

Ember identifies the strongest part of your explanation and one consequential gap, with evidence from the text you supplied.

03

Take a study challenge

Work through one question aimed at the missing claim, connection, or evidence while the chapter is still fresh.

04

Return without looking

An adaptive review separately tests the previous gap and the chapter’s central claim.

05

Strengthen the underlying skill

If the same gap appears across chapters, daily practice helps build the transferable reading skill behind it.

Designed for selective effort

The goal is not another daily obligation. It is a reliable process for the books and chapters worth remembering.

Reading skills

Build abilities that transfer beyond one book.

Ember turns recurring comprehension gaps into a sequenced practice path. One skill remains active until it succeeds across multiple days.

01

Find the central claim

Distinguish the subject of a chapter from the argument the author wants you to accept.

02

Connect ideas

Explain whether one idea causes, supports, limits, or contradicts another.

03

Evaluate evidence

Recognize which examples genuinely support a claim and which are merely related.

04

Build explanations

Move clearly from claim to reason to example in language you can use at work.

05

Calibrate confidence

Compare how well you thought you understood something with what you could actually retrieve.

06

Apply with judgment

Identify where an argument is useful, where it breaks, and what it should change.

One daily questionFocused practice stays lightweight.
→
Three successful daysPerformance must hold up over time.
→
Next skill unlocksCompleted skills remain available.
Why it works

Saving an idea is not the same as learning it.

Ember combines established learning principles in one practical workflow, without pretending every result is an objective grade.

Retrieval practice

Trying to reconstruct an idea strengthens access to it and reveals gaps that rereading can conceal.

Used in chapter recall and delayed review

Spacing

Returning after time has passed provides stronger evidence of durable memory than an immediate repeat.

Used in adaptive review timing

Elaboration

Explaining relationships, reasons, and examples gives an idea more meaningful connections.

Used in study challenges

Metacognitive calibration

Comparing confidence with demonstrated recall helps readers judge their own understanding more accurately.

Used in confidence tracking

Transfer

Practicing the same reading skill across new passages tests whether improvement extends beyond one chapter.

Used in daily skill practice
What Ember does not claim

A text comparison cannot perfectly measure understanding. Results are directional, source-dependent, and designed to support the reader’s judgment.

Worked example

See what a chapter check actually produces.

This simplified example shows the difference between a summary tool and a source-grounded learning loop.

Your recall
Deep work matters because focused effort helps people learn difficult things and produce more valuable work. Shallow tasks can feel productive but are easier to copy.
What came through

The central thread is intact.

You connected focused effort with learning difficult skills and producing high-value work.

Useful gap

The relationship could be more explicit.

Why does sustained concentration make deliberate practice more effective?

Study challenge
Explain how concentration, deliberate practice, and valuable output depend on one another.
Three days later
Previous gapRecovered
Central claimDeveloping

The weaker result determines when this chapter returns.

Trust & privacy

AI feedback should show its work.

Your reading is personal, and evaluative feedback can feel authoritative. Ember is designed to make its evidence, uncertainty, and limits visible.

Evidence

Feedback points back to the source.

Strengths and gaps include the passage used in the comparison, so you can inspect the reasoning yourself.

Uncertainty

Partial sources are labeled.

Highlights and notes cannot represent a whole chapter. Ember reduces confidence rather than hiding that limitation.

Control

Your interpretation remains yours.

Edit responses, disagree with feedback, inspect the source, reschedule reviews, and remove material.

Privacy

Clear handling before clever features.

A production version should plainly disclose storage, model providers, training policy, export, and deletion before asking for source material.

Prototype note

This prototype stores reading data locally in your browser. A production privacy policy and account-level data controls are still required before launch.

Changes save automatically
  1. 1 Add reading
  2. 2 Explain it
  3. 3 See feedback
  4. 4 Strengthen it
  5. 5 Save
Set the ground truth

What did you just read?

Add the chapter and enough source material for feedback to stay anchored to the text.

Where should this chapter live?
What are you adding?
Source hiddenRetrieval works best when you resist looking back.
Recall · without looking

Explain the chapter in your own words.

What was the central claim, and which supporting ideas mattered most? Bullets and fragments are fine.

How free recall is evaluated

Central claimMeasures your ability to capture what the author wanted you to believe, not just the topic.

Essential supportMeasures how well your answer recovered the reasons, examples, or evidence that made the claim work.

Idea relationshipsMeasures whether your answer explained how the chapter’s important ideas connect or depend on one another.

Source fidelityMeasures whether your answer stayed faithful to the source while using your own words.

Before feedback

How well do you think you understood it?

Your estimate stays separate from the evaluation. Over time, the comparison helps sharpen your judgment.

Confidence
Challenge · one useful stretch

Push this idea one step further.

Immediate check complete

That gap is clearer now.

Adaptive review

FSRS will bring this back at the right time.

Ember uses the official FSRS scheduler with your recall quality and confidence.

Scheduled after save Based on today’s response
Source and prior answer hiddenThis is a check of what lasted.
1 of 2 · Previous gap
Before you answer

Re-enter the chapter.

Use the context below to get situated, then answer from memory.

Revisit the gap

What do you remember now?

How confident are you?
Source material

Chapter source
Learning snapshot

What “Common gap” means

This reflects the pattern that appears most often across your completed chapter checks. It is a direction for practice, not a grade.

No pattern yet
There are not enough repeated signals to name a trustworthy pattern.
Insufficient response
The response was too brief to compare meaningfully with the source.
Weak relationship between ideas
Important ideas were recalled, but the connection between them was left unclear.
Missed central claim
The topic was present, but the author’s main argument was not yet reconstructed.
Missed supporting evidence
The central direction was present, but an important reason or example was missing.
Your result

How the initial check is calculated

Your response is compared with the source you provided. The check considers how much of the chapter’s important language and argument you recovered, whether you explained relationships between ideas, and whether there is enough detail to evaluate responsibly.

Strong
The central argument and meaningful support were recovered with enough detail.
Developing
The broad direction is accurate, but one useful idea or connection needs more attention.
Needs another pass
The topic may be present, but the central thread is not yet clear enough.
Not enough evidence
The response or supplied source is too brief for a responsible comparison.

This is guidance, not an objective grade. Feedback is less certain when only a summary or excerpt is supplied.
Your estimate

What confidence means

Confidence is the estimate you chose before seeing feedback. Ember does not calculate or change it.

Partly
You remembered fragments or felt unsure about the chapter’s main argument.
Mostly
You believed the important ideas were present, with some uncertainty or missing detail.
Very well
You felt you could explain the chapter clearly without looking back.

Comparing confidence with demonstrated recall over time helps you judge your own understanding more accurately.
Your reading system

Log in to Ember

Keep your chapter checks, scheduled reviews, and reading-skill progress connected to you.

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