Qvestify

Features

• Record every share purchase, sale and dividend you receive
• Search any Pakistan Stock Exchange symbol from a local list of around 500
• See what your portfolio is worth today against live market prices
• Cards for total value, amount invested, overall profit and today's change
• A performance chart over one day, week, month, three months, six months or a year
• A holdings table with average buy price, current price, value and return
• A donut chart showing how your money is split across industries
• Edit or delete any transaction, with a full history you can search and filter
• Run several portfolios at once and switch between them
• Each portfolio has its own type, risk level and time horizon
• A watchlist for shares you do not own yet, sorted by any return column
• Track the main market indexes side by side on one chart
• Dividend history with total received and the yield it works out to
• Risk view that flags too much money sitting in one industry or company
• Download a branded PDF report of your portfolio
• Export your holdings as an image to share
• Free calculators for monthly investing, one off investing and savings goals
• Sign in by email with a verification code, or with a Google account
• Native phone app for Android and iPhone, on the same data as the website
• Dark mode and proper loading placeholders throughout the phone app
• Three plans, with limits enforced on both the app and the server
• Admin panel for users, feedback, subscriptions and growth charts

Challenges and solutions

1. 01

   Challenge

   The exchange serves live intraday prices and end of day prices through separate feeds, and neither one alone can answer what a share is worth right now.

   Solution

   Built one price layer that reads intraday quotes while the market is open, falls back to the latest stored close when it is not, caches current prices in memory for 60 seconds, and writes end of day rows to the database in bulk batches of 500 with a daily dedupe.

2. 02

   Challenge

   The website and the phone app had to stay in step without maintaining two backends.

   Solution

   Pointed the Flutter app at the same Next.js routes and MongoDB database the website uses, with tokens kept in secure storage on the device. New features land once and both clients pick them up.

3. 03

   Challenge

   Plan limits had to hold even if someone called the interface directly, while still showing helpful upgrade prompts in the app.

   Solution

   Defined the plans in one typed place and derived the entitlement checks from it, so the same rules drive the server side guards and the locked content components that explain which plan unlocks a feature.

4. 04

   Challenge

   Portfolio reports needed charts and tables inside a PDF, without running a report service on the server.

   Solution

   Generated the whole report in the browser, capturing the live chart with html-to-image and building the holdings table with jsPDF autoTable, so there is no server rendering step to maintain or pay for.

5. 05

   Challenge

   The phone app grew past 20 screens and started to look inconsistent.

   Solution

   Built a design system first, with shared colour, typography, spacing, radius and shadow scales, then 24 reusable widgets including skeleton loading states, so every new screen inherits the same look and dark mode works everywhere.