An operating system built for UPSC aspirants who think clearly, study deeply, and want every minute of preparation to count.
Most aspirants don't fail because they didn't work hard. They fail because their preparation was scattered — notes in WhatsApp, PYQs in PDFs, mocks in registers, doubts in their head.
PrepOS exists for a different kind of aspirant. The one who understands that systems beat motivation, that data reveals what feelings hide, and that the best time to revise something is exactly when your brain is about to forget it.
We didn't build another question bank. We built an environment where your preparation finally makes sense to itself — with an AI mentor named Ally who knows your strengths, weaknesses, and exactly what to study today.
Your personal AI mentor who knows your data, speaks your language, and shows up every single day.
Your UPSC Study Buddy
Hey ZalaZ! 👋 Based on your data:
Today's plan: 30 Polity MCQs + revisions. Let's go! 🎯
Ally reads your stats, knows your weak areas, remembers your conversations, and gives advice that's actually personal to you.
Knows YOUR data
References your accuracy, streak, revisions due — not generic advice
Speaks your language
English, हिंदी, और Hinglish — Ally adapts to how you talk
Voice in & out
Talk to Ally during walks — get spoken replies back
UPSC-only focus
Politely blocks off-topic questions — stays focused on your prep
✨ 12+ Specialized Modes
From strategy planning to mains evaluation, mnemonic creation to mock interviews — Ally does it all.
Chat
Strategy
Daily Plan
Doubt Solver
Mnemonic
MCQ Gen
Mains Eval
Summarize
Personal Search
Weak Drill
Progress
Mock Interview
19+
AI Modes
3
Languages
24/7
Available
Free
To start
No credit card • Start in 30 seconds
What to solve today, decided for you.
No more analysis paralysis. Based on your target date, weak areas, and revision schedule, we generate exactly what you should solve today. You just show up.
Today's Mission
Designed for your target exam date
Polity
5
History
4
Economy
5
Never forget what you've learned.
Every wrong answer is automatically scheduled for revision on Sunday using spaced repetition. By exam day, you'll remember what others have forgotten three times over.
Sunday Revision
Article 32 vs Article 226
Mastered ✓
Battle of Plassey causes
Revising...
Monetary policy tools
Mastered ✓
🧠 Reviewed at day 1, 3, 7, 21
See what UPSC actually tests.
Our system analyzes years of PYQs to surface the themes that repeat, the topics that dominate, and the trends that matter. Study what counts, ignore what doesn't.
Trend Analysis
Appears every year — 30 total in 5 years
🎯 Study what UPSC actually loves
Notes that breathe across devices.
Store every PDF, screenshot, and handwritten scan in your private vault. Share with the community if you want. Access anywhere, anytime. Forever yours.
Your Vault
Polity
23 files
History
18 files
Geography
15 files
Economy
12 files
🔒 Private by default. Shareable anytime.
A rich note-taking experience built for UPSC aspirants. Organize, share, and collaborate with your study partners — all in one place.
Key Provisions:
"No person shall be deprived of his life or personal liberty except according to procedure established by law."
Landmark Cases:
Take rich notes with formatting, tags, and notebooks. Then share with your prep partner and study together — without leaving the platform.
Rich editor with everything
Headings, lists, checkboxes, highlights, code blocks, links — built for fast note-taking
Organize with notebooks & tags
Group by subject, filter by tag, pin important ones, favorite the gold
Share with study partners
Invite anyone via email. They see your updates in near real-time.
Private by default
Only you can see your notes unless you explicitly share.
Premium features powered by AI that analyze your data, predict your scores, plan your weeks, and keep you on track.
AI analyzes your last 30 days of practice and predicts your Prelims, Mains scores and Final Rank with confidence levels.
90%+ accuracyPersonalized weekly study plans generated by Ally based on your weak areas, target date, and available hours.
Custom plansEvery Monday, Ally sends you a progress briefing with insights, what to focus on, and motivational nudges.
Every MondayDeep-dive PDF reports on your preparation — subject heatmaps, time analysis, readiness scores, and more.
PDF reportsScore Predictor • Study Plans • Briefings • Reports • Collaborative Notes
0
Days of preparation tracked
0+
Questions analyzed per session
0
AI Ally modes available
0%
Yours forever
Everything a serious aspirant needs — no app-switching, no missing pieces, no excuses.
Your personal AI tutor — chat, evaluate Mains, generate MCQs, and more.
Rich note editor with notebooks, tags & email sharing for study partners.
AI predicts your Prelims/Mains score and rank from your practice data.
Smart MCQ sessions calibrated to your exam date.
GS1–GS4, Essay & Optional answer-writing practice.
Wrong answers auto-scheduled for review.
Years of pattern analysis on what UPSC actually asks.
Official UPSC syllabus + your progress, side by side.
Plan your week, build habits, never miss a topic.
Capture insights, formulas & key facts. Always at hand.
100MB encrypted storage for notes, PDFs & scans.
Shared notes from aspirants who've cracked it.
Subject-wise accuracy, time trends, readiness score.
Compete with serious aspirants. Stay motivated.
NCERTs, standard books, monthly current affairs.
Stage One
Master 5000+ PYQs with smart pacing, instant explanations, and spaced repetition.
Stage Two
Answer-writing practice for GS1–GS4, Essay & Optional. Track weekly progress.
Set your target. We calculate your daily pace. Ally introduces itself.
We surface your strongest and weakest areas with data. Ally starts recommending.
Your Sunday revision automates. Ally personalizes daily plans. Your streak builds itself.
Because every step was tracked, measured, and optimized — with Ally by your side.
We believe in mornings spent learning, not searching for what to learn.
We believe data tells the truth that anxiety cannot.
We believe knowledge belongs to everyone, not just those who can afford it.
We believe the right system makes you 10x more effective than willpower.
We believe an AI that knows YOU is worth more than one that knows everything else.
We believe in building, in shipping, in shipping again.
Core features free forever. Premium for power users.
Your notes, your data. Encrypted. Never sold. Never shared.
By aspirants, for aspirants. Shaped by real feedback, every week.
No credit card. No commitment. Just a thoughtful preparation environment — with your AI mentor Ally — that makes the next 365 days count.
BeginSign up in 30 seconds • Meet Ally instantly