Opens on what matters today.
Your classes with Present and Bunked right there, what is due, your streak — and one honest line about the subject that needs you most.
- One tap a class
- Works offline
- Your streak
A product of ArvelicFor Indian colleges
Your whole semester, sorted.
Attendance maths, notes and past papers, a plan for every exam and a calm one for the night before. Built around the 75% rule, internals and the syllabus you actually have.
See it in action
B.Tech · CSE / ITBCABBA / BMSB.Com / B.Com (Hons)MBBSLL.B / BA LL.BB.Sc NursingB.PharmB.Tech · AI / Data ScienceB.Sc · Computer ScienceB.A. (Arts & Humanities)MBA / PGDMMCAB.ArchB.DesDiploma / PolytechnicB.EdBDSBJMC · Journalism & Mass Comm.BHM · Hotel ManagementB.Sc · AgricultureM.Tech · CSE / ITM.ComMSW · Social Work
160+universities in the list — or add your own
39courses, ready to pick
587subjects built in, first year to electives
₹0for the core app — and no ads, ever
01Inside the app
One app for the whole semester.
Built around how college in India actually works — the 75% rule, internals, past papers, the date sheet that changes twice, and the night before. Scroll through the real screens.
Every subject, worst first.
Each subject against your college’s rule — 75% unless you change it — with exactly how many you can miss, or how many in a row it takes to climb back.
- Scan the portal once
- Holidays don’t count
- Share to WhatsApp
Plan the bunk before you take it.
Tap the days you want off and every subject’s percentage updates before you commit. The one that would fall below 75% turns red.
- Tap a day to skip
- Tap again for a holiday
Study what the paper actually asks.
Collect past papers and Backbench counts what keeps coming back — which units carry the marks, which questions repeat. Exam mode counts you down to the paper.
- Question bank
- Paper predictor
- Exam mode
02Bunk maths
Can I bunk tomorrow? Now you know.
Backbench does the attendance maths for every subject — how many classes you can still miss, or how many in a row it takes to get back to 75%. Try it: this is the same arithmetic the app runs.
- Your college’s rule75% unless you change it — per subject, never a guess.
- Holidays don’t countMark a day off and nobody’s percentage drops.
- Send it to the groupShare the answer to WhatsApp as a clean picture.
Try it
Operating Systems
After next week
Safe — you can miss 1 more
Right now: 31 of 40 · 78%
Next week — tap a day to bunk it
03Everything else
Everything a semester throws at you.
Small tools, each done properly, so you are not juggling five apps and a WhatsApp group.
Flashcards
Spaced, so it sticks.
Each card comes back just before you would forget it.
Focus
25, 45 or 50 minutes.
A timer that counts the week, not just the session.
Timetable
Photograph it. Done.
Reads even a handwritten timetable, on your college’s own periods.
Marks & CGPA
SGPA, CGPA, and what next semester needs.
Library & notes
Every file, in its subject.
Offline on the phone, synced everywhere you sign in.
Exam mode
One paper. Nothing else.
Countdown, units left, starred questions, a cheat sheet to print.
Free shelf
39 sources that are genuinely free.
No sponsored links. Ever.
Five looks
Paper, Ink, and three more.
Try two of them on this page.
Premium GlassPro
Sticker ClubPro
04AI Studio Coming soon
Sample papers, written from your notes.
AI Studio reads what you study from — your notes, your PDFs and the past papers you collected — and writes for your exam, in your university’s pattern. Not the internet’s.
- AI sample paperSections, marks and “attempt any five”, likely questions starred, answer hints, a timed attempt.
- Ask my notesAnswers from your notes — and says so when it goes beyond them.
- Quiz me & revision sheetMCQs with a score, wrong answers turn into flashcards; one printable page of what matters.
Free accounts get 1 sample paper per subject and a few tries of each tool every month. Pro gives more.
Section AAnswer any five · 5 × 2
1.Define the coefficient of variation.2
2.What is a scatter diagram? Likely2
3.Distinguish between correlation and regression.2
Section BAnswer any three · 3 × 10
7.Calculate Karl Pearson’s coefficient of correlation for the data given and interpret the result. Likely10
HintFind both means, the deviations and their products; r = Σxy ⁄ √(Σx² · Σy²).
8.Explain the method of least squares for fitting a regression line.10
Why is r always between −1 and +1?
From your Unit 3 notesr is the covariance divided by the product of the two standard deviations, so it is a scaled measure that can never pass ±1.
05Cram mode
The night before, handled.
Pick the paper and the hours you have left. Backbench lays out the night — the topics that carry the most marks first, real breaks, the last stretch for saying it out loud — and keeps the clock for you.
34:00
Now · block 1 of 6
Correlation & regression
Carried the most marks across five years. First.
- Correlation & regressionThe heaviest unit, first
- BreakFive minutes. Water, not your phone.
- Index numbers & time seriesThe second heaviest unit
- Starred past questionsThe ones that came back more than once
- Say it out loudTwenty minutes of recall, eyes off the page
- Before you sleepAdmit card, two pens, calculator, alarm
60-second blitz
Quick-fire questions from your own bank. One minute, as many as you can.
Cheat sheet
One A4 page of the whole paper, ready to print or keep on the phone.
Panic mode
A two-minute reset for when the page stops making sense.
Short on time?
It drops topics on purpose — and tells you which ones it dropped.
06Your class
One CR. One link. The whole class, set up.
The CR fills in the semester once — subjects, units, timetable, exam dates — and shares one link. Everyone who taps it gets their app filled in. Attendance, marks and notes never travel with it.
- Class space Coming soonPinned notices, deadlines that land in everyone’s planner, files up to 20 MB — and the CR sees who has read what.
- Study rooms Coming soonOne shared timer with friends, who is studying right now, and a weekly board.
- CircleBoards by university and course. Ask a doubt, upvote the answer that helped.
07Marketplace
Good notes are worth paying for.
Sell your notes, solved papers and lab files to students on your syllabus. Every file is checked before it goes live, payments run through Razorpay and are verified on our server, and no file ever gets a public link.
- UploadPDF, photos, Word or slides, up to 25 MB
- We check itYour own work only — then it goes live
- Students buyYou set the price, ₹10 to ₹500
- Withdraw to UPIFrom ₹300, three days after a sale
If you price your notes at
₹
You keep ₹Backbench ₹
On every sale. Buyers also get 5 credits for backing a classmate.
Pricing
Free for the semester. Pro for exam season.
Everything you use every day is free and stays free. Pro adds more AI, more cloud space and two premium looks — paid once, never renewed behind your back.
FreeFor every student
₹0forever
No card, no trial, no catch.
Start freeOpen Backbench- Attendance, bunk planner, timetable, deadlines
- Notes, library, flashcards, question bank
- Paper predictor, exam mode, cram mode
- Class pack, class space, study rooms, Circle
- Sell notes on the marketplace
- 1 AI sample paper per subject
- 5 AI scans a day · 200 MB cloud
Backbench Pro Coming soonFor exam season
₹199for 30 days
About ₹6.6 a day — the cheapest way to have Pro
Get Pro in the app- Everything in Free
- 3 AI sample papers per subject
- 200 Ask my notes · 60 quizzes a month
- 30 AI flashcard decks · 30 revision sheets
- 20 AI scans a day · 2 GB cloud
- Premium Glass and Sticker Club looks
- One-time payment via Razorpay, no auto-renew
Compare every limit
| Each month | Free | Pro |
|---|---|---|
| AI sample paper (per subject) | 1 | 3 |
| Ask my notes | 5 | 200 |
| Quiz me | 2 | 60 |
| AI flashcards | 2 | 30 |
| Revision sheet | 3 | 30 |
| AI scans (a day) | 5 | 20 |
| Cloud storage | 200 MB | 2 GB |
Past the free tries, a free account can also use AI with credits. Prices and limits are set in the app and may change; the app always shows the current ones before you pay.
Install
On your phone in a minute.
On Android, download the app straight from here — about 11 MB, no Play Store needed. On iPhone it installs from Safari. On a laptop or PC, Backbench simply runs in your browser. Open it and a short welcome walks you in, then you sign up.
You are inside another app’s browser. Open the menu and choose Open in Chrome or Open in Safari — installing only works there.
Download for Android
- 1Tap Download for Android. It saves to your Downloads.
- 2Open the file. Android asks once, because the app comes from this site and not the Play Store: tap Settings, turn on Allow from this source, go back.
- 3Tap Install, then Open, and sign up.
Every detail, and the checksum: joinbackbench.com/android. Rather not download anything? .
- 1Open this page in Safari.
- 2Tap Share in the bottom bar.
- 3Scroll down and tap Add to Home Screen .
- 4Open Backbench from your home screen and sign up.
Notifications on iPhone work once Backbench is on the home screen (iOS 16.4 or later).
Open Backbench
- 1On a laptop or PC, Backbench runs right in Chrome, Edge, Safari or Firefox — nothing to download.
- 2Want it in its own window? .
- 3For your phone, scan the code — the Android app downloads there.
Scan to get the Android app
Installed. Open Backbench from your home screen — or open it here.
Our promise
Your semester is yours.
Backbench earns from Pro and a share of marketplace sales — never from your attention or your data.
No ads. Ever.
Not in the app, not on this site, not in the free plan.
No tracking
No ad networks and no trackers following you around the web. Your notes are read by nobody but you.
Take it, or delete it
Download a full copy of your semester any time, or delete your account and everything personal on it — from inside the app.
Locked down where it counts
Passwords are hashed on the server, payments are verified with Razorpay, and credits are counted where they cannot be faked.
FAQ
Questions, answered.
Something else? Write to support@joinbackbench.com, or use Help & feedback inside the app.
Is Backbench really free?
Yes. Attendance, the bunk planner, timetable, notes, library, flashcards, the question bank, paper predictor, exam and cram mode, class pack and the community features are free and stay free, with no ads. Pro is optional and adds more AI, more cloud storage and two premium looks.
Do I need the Play Store or App Store?
No. On Android, download the app from joinbackbench.com/android — about 11 MB, and Android asks once to allow it. On iPhone, open joinbackbench.com in Safari and tap Share → Add to Home Screen. On a laptop or PC it runs in your browser. Your account and semester are the same everywhere.
Does it work without internet?
Yes. Everything you do is saved on your phone first, so the app opens and works with no signal. When you are back online it syncs to your account, so the same semester is on every device you sign in on. AI features and payments need a connection.
Is my university and course on it?
Backbench lists 160+ universities and 39 courses with their subjects built in — from MAKAUT, Calcutta and Jadavpur to AKTU, VTU, Anna and Delhi University. Not on the list? Pick “Other” and add your own subjects; everything works the same.
What is a class pack?
One person — usually the CR — sets up the semester once: subjects, units, timetable and exam dates. They share one link, and everyone who taps it gets their app filled in. Attendance, marks, notes and names never travel in a class pack.
What are credits? Can I cash them out?
Credits are a thank-you for helping other students — your notes being accepted, a past paper verified, an answer marked solved, a friend who stays. You spend them on themes, extra AI and merch. They are not money and cannot be exchanged for cash.
How does selling notes work?
Upload your file, set a price between ₹10 and ₹500, and Backbench checks it before it goes live. When a student buys it you keep 70%. Earnings wait three days, then you can withdraw to your UPI ID once you have ₹300 or more. See the refund policy and terms.
Does Pro renew automatically?
No. Pro is a one-time payment for a week, a month, or an Exam Pass that covers exactly your exam dates. Nothing renews and there is nothing to cancel. Buying again while Pro is active adds the days on after it.
Is my data safe?
Your password is hashed on the server, payments are verified with Razorpay before they count, and files you keep in the cloud are private to your account. You can download a copy of your data or delete your account from the app at any time. Read the privacy policy.
Who makes Backbench?
Backbench is made by Arvelic, an independent studio in India that makes careful, private software.