Score Delta My startup Live · early stage
Website and Android app · by Shahrukh Sheikh
EdTech · Laravel · React · React Native · Hindi + English
Practise like the real exam. Know exactly what to do next.
Score Delta is the startup I am building: mock tests for Himachal Pradesh government exams, in Hindi and English, that behave like the real paper and end with a report telling you which topics to fix first. It is live at scoredelta.in, and I build and run all of it myself.
Free to start · No card · Works on any phone · Screenshots are the live public pages
At a glance
Score Delta in numbers
10
Himachal exams
Patwari, Junior Office Assistant (IT), Clerk, Police Constable, four TET papers, High Court Clerk and the State Co-operative Bank Junior Clerk.
2,730
Mock tests
Full mocks, sectional and topic tests across the ten exams, of which 146 are free. Counted from the live site on 11 Nov 2026.
14,151
Practice questions
For practice mode, with hints and revision, in Hindi and English.
100
Lighthouse score
Performance, accessibility, best practices and SEO, on the live pages I measured on mobile on 11 Nov 2026. The desktop home page scored 99 for performance.
Why I built it
I wanted that idea, done properly.
I spent time inside an existing exam-prep site and liked its idea: tests laid out by topic, practice you can repeat, and a report at the end of a test that shows where you went wrong. I did not like how it looked or how it felt to use. The idea was right and the product around it was clumsy. I wanted to see what that idea could be with a clean design, on a phone, in Hindi and English.
The other reason is the one on my own about page: my bottleneck has never been building, it is marketing and sales. I wanted one product that I could take all the way, from the first line of code to the first student who tells me it helped, and that could one day pay for itself so I depend less on a salary. That makes Score Delta my startup, not a client project and not a lab experiment.
So the rule from the first scope document was that an exam is data, not code. A new exam, with its subjects, topics, marking scheme, sections and plans, is set up in the admin panel and needs no code release. Himachal Pradesh exams come first because a focused product can be better than a general one.
What it covers
From the first free test to the weak-topic list.
Tests that match the paper
- Full mocks, sectional tests and topic tests for each exam.
- The real pattern: sections, timing and marking, including negative marking, are read from each exam's pattern, never hard-coded per exam.
- Hindi and English in both the screens and the questions.
- An open test can be resumed where you left off.
A report that says what to do
- Score, accuracy and rank after every test.
- Weak topics listed, so the next hour has a target.
- Solutions for every question to read after the test.
- A share link for your progress that you switch on yourself and can switch off at any time.
Practice and revision
- Practice by topic, with hints.
- Revision that brings back questions you got wrong or are likely to forget.
- A Question of the Day and a short daily warm-up.
- An exam countdown so the date is always in front of you.
Made for phones and weak internet
- Mobile-first pages that load fast on a slow connection.
- A React Native Android app that sends answers through an outbox, so a dropped connection does not lose them.
- Push notifications for reminders.
- Sign in with Google, with no password to remember.
Honest payments
- Two plans per exam, with the price shown up front.
- Razorpay checkout, coupons and receipts.
- A My Plans page to see what you bought and to cancel a monthly plan yourself.
- A written refund and cancellation policy you can read before paying.
Admin and safety
- An admin panel where exams, syllabus, patterns, questions and plans are managed without a code release.
- Roles with least privilege, two-factor sign-in for staff, and an audit log.
- Phone numbers and emails are encrypted in the database.
- Students can delete their own account from a public page.
The screens
The live site, not a mock-up.
These are screenshots of the public pages of scoredelta.in, taken on 11 Nov 2026. The student dashboard, the test screen and the result report are behind a login and hold personal data, so I have not published them here.
Pricing
Two paid plans per exam. Nothing else.
Free tests and daily practice stay free. If you want more for one exam, there are two plans, and the price you see is the price you pay.
Free
₹0
For everyone. No card, no auto-debit, no time limit.
Free mock and topic tests with results, the Question of the Day, a daily warm-up and 20 practice questions a day.
Mock Pack
₹259
For one exam of your choice. One-time payment, valid for 6 months.
Opens the full mocks.
Exam Pass
₹499 /month
For one exam of your choice. Monthly, auto-renews, cancel any time.
Opens full mocks, sectional tests, topic tests, and unlimited practice and revision.
Prices as shown on scoredelta.in on 11 Nov 2026. The site is the source of truth if they change.
How it's built
One backend, three front doors.
The Android app
The same account, on the phone.
The Android app is written in React Native and talks to the same API as the website, so a student's plans, attempts and progress are the same on both. It follows the website's design: the same test library with tabs for each kind of test, free and paid tests mixed on the first page, and the same two plans.
- An answer outbox keeps answers on the phone until the server has them.
- Push notifications through Firebase.
- Sign in with Google.
- A force-update check, so an old build can be told to update.
Where it stands
It is built and runs on my own phone. It is not on Google Play yet: the developer account is the step I am still working on. Until then, scoredelta.in works on any phone.
What it runs on
The stack.
| Backend | Laravel 12 on PHP 8.4, with a MySQL database and a queue worker. |
| Website | Server-rendered public pages, and a React and TypeScript student app through Inertia. |
| Admin | Filament, with roles, two-factor sign-in for staff and an audit log. |
| Android | React Native, with Firebase push notifications. |
| Payments | Razorpay on the website. |
| Size | About 45,000 lines of PHP, 11,000 of web TypeScript and 6,500 of app TypeScript, with about 400 automated tests in the main suite. |
Being honest
What isn't proven yet.
- It is early. I am not claiming user numbers, results or revenue, because there is nothing to show yet.
- One person built it. The question banks were built with scripts and are checked by automated tests. I have not had every one of the 14,000+ questions reviewed by a subject teacher, so a wrong answer can exist.
- Himachal Pradesh exams only, ten of them. More are planned and are not live.
- The Android app is not on Google Play yet.
- Sign-in is with Google. There is no password login.
- The screenshots are the public pages. The student screens are not shown.
- The 100 Lighthouse score is a measurement of the pages on a given day, and depends partly on the server and the network.
FAQ
Questions people ask first.
Is Score Delta really your startup?
Yes. It is the product I am building as a business: I design it, write it, run the server and do the marketing myself. It is early, so I am not claiming user or revenue numbers.
Why Himachal Pradesh exams?
Because a focused product can be better than a general one. Score Delta starts with the Himachal Pradesh exams and a pattern, marking scheme and syllabus that match each of them. More exams can be added without a code release, because an exam is data in the admin panel, not code.
What is free?
Sign-up, the exam dashboard, the Question of the Day, a daily warm-up, free mock and topic tests with results, 20 practice questions a day from free topics and a basic report after every free test. No card and no time limit.
What do the paid plans cost?
Two plans for each exam. The Mock Pack is Rs 259, one time, valid for 6 months, and opens the full mocks. The Exam Pass is Rs 499 a month, renews until you cancel, and opens full mocks, sectional tests, topic tests and unlimited practice and revision.
Is there an Android app?
Yes, it is built in React Native and runs on my own phone, but it is not on Google Play yet. The website works on any phone in the meantime.
Who built it?
I did, alone: the design, the backend, the website, the Android app, the content tooling and the server. The first commit is dated 19 October 2026.
Want the build story: why an exam is data and not code, how scoring reads each exam's pattern, and the bugs found while launching?
Read the case study