HomeStart the real assignment
Best free homework helper app
AI Homework Helperfor Every Subject.Learn it. Don’t just solve it.
Take a photo of your homework and get clear, step-by-step help. Lirno explains difficult questions and turns what you learn into quizzes, flashcards, and a study plan.
- Your AI homework and study companion
- Available on iOS for iPhone and iPad
- No registration required—start for free
TutorChoose how you want help
StudyBuild understanding that lasts
PlanMake the next task obvious
ProgressSee what is getting stronger
One connected workflow
One homework helper app from assignment to exam prep.
Lirno is designed around the real sequence of schoolwork: understand what arrived, choose the right amount of help, and preserve the useful part for later.
01
Bring the real workStart with the assignment
Type the question, photograph the worksheet, or open the file. Lirno keeps the instructions, diagrams, due date, and subject together instead of treating one line in isolation.
02
Choose a useful routeDecide what help means
A hint, a full explanation, a reasoning check, and a 30-second answer are different tools. Pick the smallest one that helps you move again.
03
Keep the learningCarry the idea forward
Turn the useful part into a mission, study set, mistake note, focus block, or exam check so the session does more than clear tonight’s page.
Made for the difficult moment
Useful when “just start” is not useful enough.
Homework rarely fails because a student has no intention of working. It usually stalls because the task is unclear, the missing idea is hard to name, or the week has no sensible order.
When the page feels too big
Find one first move
Separate a mixed worksheet into small tasks and begin with the item that unlocks the rest.
When an answer looks wrong
Check the reasoning, not just the result
Compare the setup with the class method and locate the first step where the logic changes course.
When tomorrow is the exam
Reveal the weak topics quickly
Use short no notes questions before spending another hour rereading everything.
When five deadlines collide
Turn pressure into an order
See what is due, what takes real concentration, and what fits into the time left tonight.
The learning loop
Finish the assignment. Keep the method.
Lirno is organized around a simple sequence that works beyond one subject: understand what the task needs, try the next move, check the reasoning, then retrieve it again.
Understand
Name the idea and see the setup.
Try
Work the next step yourself.
Check
Find the first wrong move.
Remember
Turn it into retrieval practice.
Photo, worksheet, or fileHomework scanner & Missions
Scan homework. Turn the whole assignment into a clear route.
Bring in the whole assignment. Lirno helps separate the work into smaller tasks, keeps the subject and level in context, and gives every step a learning purpose.
- See what was detected. Confirm the task before asking AI to explain it.
- Choose the right support. Start with a hint, explanation, or check.
- Continue past completion. Save the idea for review, a study set, or an exam plan.
Keep the task in context
A question is more useful when the rest of the page comes with it.
One cropped equation or sentence can hide the most important instruction. Lirno works best when the whole task is visible: the subject, level, source material, diagram, required method, and what you already tried.
That context changes the help. A geometry proof needs different support from a calculation. A literature response needs the prompt and evidence requirements, not a generic summary of the book.
Take a better homework photoDetected assignmentPhysics · Forces
Task 4 of 7Explain why both objects accelerate equally in a vacuum.
Use the diagram and refer to air resistance in your answer.
1Identify the comparison2Remove air resistance3Explain the effect of gravity
AI homework tutor
Ask for the kind of homework help you need—not the longest answer.
Tell Lirno where you are stuck, then choose the depth. You can begin with a nudge, build the whole idea, check work you already attempted, or keep the reply quick.
HintOne useful nudgeExplainBuild the ideaCheckFind the first mistakeQuickKeep it concise
Meet Lirno Tutor Why do a feather and a ball fall at the same rate in a vacuum?
BUILD THE IDEA
Remove air resistance from the comparison.
- Gravity accelerates both objects toward Earth.
- In normal air, drag slows the feather much more.
- In a vacuum, only gravity remains, so both fall together.
Explain further30-sec check
Four ways to ask
Choose the smallest response that gets you moving.
Good tutoring changes depth with the situation. Lirno makes that decision visible so a quick nudge does not automatically become a complete solution.
Hint
Keep ownership of the next step
Use one directional clue when you understand the topic but cannot see how to begin.
Explain
Rebuild the missing idea
Ask for the concept, why the method works, and a simple example before returning to your task.
Check
Find the first wrong move
Share what you tried. Lirno can inspect the reasoning without replacing the whole solution.
Quick
Resolve a small question fast
Use a concise response for a definition, reminder, or final clarification that does not need a lesson.
The goal is not answer volume
A hint can protect the part of learning that only you can do.
The most useful support leaves a meaningful next step in your hands. It can name the missing concept, ask a better question, or point to the first mismatch without taking over the whole task.
First: show what you understand so far.Then: request the smallest useful intervention.Finally: explain or retrieve the idea without the help visible.
Use Lirno Tutor step by step Study is not one activity
Use a different learning move when the problem changes.
Understanding a process, building an argument, practicing recall, and preparing for an exam should not all look like the same chat window.
Close the notes and retrieve
A short attempt from memory tells you more than another passive reread.
Turn a process into a sequence
Use steps, relationships, and simple diagrams to make a dense topic easier to explain.
Organize the claim before the paragraph
Keep the argument, evidence, and final voice yours while improving the structure around them.
Practice where recall is weakest
Use small checks to decide what deserves the next round instead of reviewing every topic equally.
AI study app
Build flashcards, quizzes, and lessons from what you are learning.
Turn one useful explanation into a lesson, a recall set, an exam check, a writing plan, or a mistake note—without rebuilding the context every time.
CORE IDEA
Plants turn light energy into stored chemical energy.
Follow the inputs, the transformation inside the chloroplast, and the outputs the plant can use or release.
01Light→02Water + CO₂→03Glucose + O₂
Explain visually Make flashcards Start a quick quiz
CHECK YOURSELFWhich two substances enter the process?Answer without looking back
Visual learning
Lesson Studio
Open a dense topic as a guided lesson, step sequence, quiz, cards, or an explorable visual.
Active recall
Study sets
Keep summaries, flashcards, and quizzes together so review starts from material you already understand.
Exam preparation
Exam Coach
Define the scope, diagnose weak topics, practice deliberately, and retest without notes.
Your own voice
Writing Lab
Plan claims, organize evidence, and revise clarity without handing your thinking over to AI.
Targeted review
Mistake Book
Save the misconception, the correction, and the clue that will help you catch it next time.
Learning signals
Knowledge map
See which subjects are active and choose the next focused block from evidence, not panic.
From help to independent recall
Do not stop when the explanation finally makes sense.
Recognition is not the same as recall. After a worked explanation, close it and reproduce the essential step, definition, diagram, or argument from memory. That short attempt is where confidence becomes evidence.
- 01Reduce the lesson
Keep the central idea, one useful example, and the mistake most likely to return.
- 02Practice without the answer
Use a flashcard, quiz, short response, or blank diagram that requires retrieval.
- 03Review the miss
Save why the answer failed and what clue will help you notice it next time.
TODAY · 3 TASKS25 minBiology lab questions35 minEnglish essay evidence20 minAlgebra review
Homework planner
Plan assignments and make tonight smaller without losing the week.
A good plan does more than collect due dates. It shows the next action, gives demanding work enough space, and keeps tomorrow visible while you focus on today.
- Capture what is due. Keep the assignment, subject, date, and expected effort together.
- Break down heavy work. Turn “finish the project” into steps that can actually begin.
- Start a focused block. Choose 15, 25, or 50 minutes based on the work—not the pressure.
Focus with a reason
Choose a block that matches the work in front of you.
A timer is useful only when it protects a clear task. Pick a short restart, a standard homework block, or a deeper session—and define what “done” means before it begins.
15min
Quick reset
Restart
One small task, a quick review, or the first step after getting stuck.
Best for getting unstuck
25min
Everyday focus
Focus
A complete homework block with one subject and a defined stopping point.
Best for one clear assignment
50min
Deep session
Deep work
Writing, exam practice, or a multi-step assignment that needs sustained attention.
Best for complex work
Progress
See what improved—and what needs one more pass.
Progress is not a streak for its own sake. Questions, completed tasks, focused minutes, mistakes, and subject activity help you see what happened and choose a more useful next block.
12Questions explored4Tasks completed75Focused minutes3Study days
Explore review and progress 
MISTAKE BOOKThe sign changed during distribution.Next clue: circle the negative before expanding.
Homework help for every subject
Science, writing, languages, and exam prep need different first moves.
Use one familiar learning loop while the subject, format, and deadline change.
Find the first wrong step
Ask Lirno to check the setup and show where your reasoning changed course.
Build the process in order
Turn vocabulary and diagrams into a sequence you can explain back without notes.
Strengthen the argument
Shape claims and evidence while keeping the reasoning and final wording yours.
Test recall before rereading
Use short no notes checks to reveal what is ready and what still needs a pass.
Start with the decision
Choose what you need to do—not just the subject name.
“Help with math” is too broad to produce a useful learning route. Begin with the action: understand, repair, check, practice, plan, or prepare.
01
Understand the prompt
Identify the action word, required format, given information, and what a complete response must include.
Explore 02Repair one gap
Ask for the prerequisite idea or smallest useful example instead of opening a completely new lesson.
Explore 03Check an attempt
Show your reasoning and look for the earliest mismatch in units, signs, evidence, assumptions, or method.
Explore 04Build a study set
Save the concepts, questions, examples, and mistakes that will matter when the worksheet is no longer in front of you.
Explore 05Plan the workload
Break a large assignment into realistic blocks and place the hard thinking where your time and attention are strongest.
Explore 06Prepare for the exam
Define the scope, diagnose weak areas, practice without notes, and retest before deciding you are ready.
ExploreRead AI help critically
A confident answer still needs four checks.
AI can be clear and still be incomplete, use the wrong method, or miss an instruction. Treat every response as something to inspect, connect to class, and make your own.
Does it answer the actual task?
Compare the response with every instruction, diagram, unit, source requirement, and constraint on the page.
Can you explain the method back?
If you cannot restate why the next step works, ask for a smaller explanation before moving on.
Does it match your class rules?
Check the method, notation, citation style, calculator policy, and teacher expectations before relying on it.
Will you remember it tomorrow?
Create a short retrieval question, mistake note, or example that lets you test the idea later without the answer visible.
Useful and honest
Built to support your thinking—not replace it.
Start with learning intent
Ask for the concept, setup, first wrong step, or a way to test recall.
Check what AI gives you
Verify calculations, facts, citations, and the method expected in class.
Follow school rules
Use Lirno for understanding and practice, especially where AI use is restricted.
The short answer
What is an AI homework helper?
Useful AI helpUnderstand → Try → Verify → Remember
The best result is not an answer on screen. It is a next step you can explain and repeat yourself.
An AI homework helper can interpret a question or assignment and respond with explanations, hints, examples, checks, or practice. The useful part is adapting support to the exact place where a student is stuck—not simply producing text faster.
Lirno connects that support with the rest of the learning workflow. A worksheet can become a Homework Mission, an explanation can become flashcards or a quiz, and a large assignment can become realistic focus blocks.
It is not a teacher, source of truth, or permission to ignore school rules. Verify calculations and facts, compare the method with class instruction, protect personal information, and keep graded work genuinely your own.
AI homework help & study guides
Practical ways to scan, understand, practice, and plan.
What is an AI homework helper?
A plain-English look at how an AI study companion can explain homework, when it helps, and where students still need judgment.
Read guideHow to take the best photo for a homework scan
A practical camera checklist so Lirno can read worksheets, textbook pages, and handwritten problems more clearly.
Read guideHow to use Lirno Tutor for step-by-step homework help
Prompt patterns that get clearer explanations, better hints, and more useful checks of your own work.
Read guideHow to turn homework into practice that sticks
Move from “I finished the worksheet” to flashcards, quizzes, missions, and Lesson Studio review.
Read guideHow to plan homework and due dates without the Sunday spiral
Use Lirno’s homework inbox, today-first focus, and missions to keep assignments visible and actionable.
Read guideHow to study for exams with Lirno
Build an exam plan from weak topics, practice quizzes, Lesson Studio reviews, and focused study blocks.
Read guideThree routes beyond tonight
Leave with something you can study again.
A strong session leaves a useful artifact behind: a model, an argument map, a study set, a mistake note, or a review cycle based on what recall actually revealed.
A science process you can explain in order
Move from vocabulary to cause, sequence, and a diagram that makes the relationships visible.
An essay plan with evidence attached to each claim
Use AI to question the structure while the interpretation and final language stay yours.
A focused review cycle based on retrieval
Test, inspect the gap, review only what is needed, and test again without notes.
Good to know
AI homework helper questions students and parents ask first.
Straight answers about supported subjects, homework scanning, AI limits, school rules, and availability.
What is the Lirno AI homework helper app?
Lirno is an AI homework helper and study app for iPhone and iPad. It combines a homework scanner, guided AI tutoring, Homework Missions, Lesson Studio, flashcards, quizzes, planning, exam practice, and progress tools.
Which school subjects can Lirno help with?
Lirno supports homework across science, English, writing, history, languages, literature, geography, computer science, math, and more. The help adapts to the subject and the kind of task you bring in.
Can the homework scanner read a worksheet photo or file?
Yes. You can type a question, take a homework photo, or bring in a supported file. Always confirm that the full task, units, diagrams, and instructions were captured correctly.
What are Homework Missions?
A Homework Mission turns an assignment into smaller learning steps. The goal is to understand, try, check, and remember—not just clear a page as quickly as possible.
Can AI homework help be wrong?
Yes. Lirno is a learning aid, not an authority. Check calculations and sources, compare with the method taught in class, and ask a teacher when something conflicts.
Can I use Lirno on graded work?
Follow your school and teacher rules. Use Lirno to understand, practice, and check your reasoning—not to submit work that is not yours.
Where is Lirno available?
Lirno is designed for compatible iPhone and iPad devices and is distributed through Apple’s App Store.