I built Mizan because I was tired of budget apps demanding my email, asking for my bank passwords, and selling my data to advertisers. Mizan is a simple, beautiful personal accountant that lives completely on your phone.
Track daily cash flow, keep friendly loans organized, cut ghost subscriptions and cool off impulse buys with Expense Guard, and let Mizan manage your Zakat: every gold and silver wealth on its own lunar year, with a reminder when it’s due. No subscriptions, no ads, no cloud servers.
Tap any tab above to preview real app screens
01 — The story
I didn’t build Mizan to create another startup pitch deck. I built it to solve real, everyday frustrations that I and millions of ordinary people face with modern finance apps.
Almost every budgeting app today forces you to link your online bank credentials or sign up with Google so they can monitor where you spend money. With Mizan, your phone is the only vault. Even I, the developer, have zero way to see your balances.
Every year, families make the same list again: which gold and silver they hold, whose it is, when each one’s lunar year began, and whether last year’s Zakat was paid. Mizan is a Zakat manager, not just a calculator: each wealth stays on its own Hawl, a reminder comes when it’s due, and every payment is kept.
Lending $100 to a friend or borrowing from a family member isn’t an “Accounts Receivable” entry. It’s a personal trust. Mizan has a dedicated Loans Lent & Borrowed tracker with partial settlements so you never have awkward money conversations again.
02 — Common headaches vs. real solutions
Compare what you normally deal with against what Mizan actually does.
What usually annoys people: Cloud Outages & Login Walls: Want to quickly write down a grocery expense? First wait for a server to load or log back in because your session expired.
How Mizan solves it: Instant Offline Speed: Opens immediately, even on airplane mode or underground. Transactions save instantly on your device storage.
What usually annoys people: Paywalls on Everything: Exporting an Excel sheet of your own data or making a 5th category suddenly requires a $9.99 monthly subscription.
How Mizan solves it: Completely Free & Unlocked: Unlimited wallets, custom categories, one-click Excel (.xlsx) export, and backups are 100% free forever.
What usually annoys people: 2 AM Impulse Spending: Shopping apps make buying too frictionless, leaving you with buyer’s remorse the next morning.
How Mizan solves it: Expense Guard Cooling-Off: Want that expensive gadget? Put it on a 24-hour reflection timer. If you change your mind, send the money straight into savings!
What usually annoys people: Clunky Arabic & Urdu Support: Translation in most apps looks backwards, broken, or awkwardly placed from left to right.
How Mizan solves it: Natural Right-to-Left (RTL): In Arabic or Urdu, the entire screen cleanly flips direction like a native book, with proper Arabic typography.
03 — What Mizan does
Designed to replace messy spreadsheets, sticky notes, and three different financial apps.
Keep separate balances for your physical cash, your main bank account, and digital wallets. Move money between them with one tap, and see your exact net worth in real time.
Tracks Income, Expenses & Transfers
Set monthly spending targets for things like Groceries, Fuel, or Dining out. A visual burn-bar shows you whether you’re spending too fast before the month is over.
Visual warnings before you overspend
Enter each gold and silver wealth once, for you or your family. Mizan checks it against the Nisab, runs its own lunar Hawl, reminds you when Zakat is due and keeps a record of what’s been paid.
Gold and silver, year after year
Put non-essential purchases on a 24-hour to 30-day “pause timer” to prevent regret, and catch ghost Netflix, gym or software renewals. Whatever you keep is counted and can go to a savings goal.
Includes Repair vs. Replace calculator
Planning a family wedding, home renovation, or small business project? Track vendor deposits, agreed contract totals, and remaining dues in a clean checklist with WhatsApp shortcuts.
Keeps vendor contacts & deposits organized
Saving for a car, a home, Hajj or your children’s education? Set a target and a deadline, choose how often you save, and Mizan works out how much to put aside each time, with a progress bar for every goal.
Expense Guard savings flow straight in
04 — Inside the app
Turn the dial to walk through Mizan, from the first launch to the recovery kit. Tap the phone in front to see it full size.
05 — Expense Guard
Money slips away quietly: subscriptions you forgot you pay for, and the 2 AM upgrade you regret by morning. Expense Guard puts a price on both, and every dollar you keep is counted and can go straight to a savings goal. Try it:
Renewals you stopped using but still pay for. Cancel one and its yearly cost moves to kept & saved.
That’s $1,193.40 a year draining away.
Want that upgrade right now? Put it on a pause timer first. If the urge passes, the money stays yours.
Timer done. Still want the new phone?
06 — Zakat manager
A calculator answers one question, once. The headache is everything around it: a list of every gold and silver you and your family hold, when each one’s lunar year began, which have completed it, and what has been paid. Mizan keeps that list for you, year after year. Run the calendar forward and watch it work:
Hawl 2 · 40 days left · completes 7 Dec 2026
Hawl 1 · 150 days left · completes 27 Mar 2027
Hawl 2 · 290 days left · completes 14 Aug 2027
30 g of the 85 g Nisab · no Hawl yet
07 — Notifications
Two kinds of local notification, both scheduled by the phone itself, so they work offline with no server and no account. Set them up, then run a day or a lunar year and watch them land.
When a wealth’s Hawl completes, with heads-ups before it does.
A nudge to record the day’s income and expenses before you forget them.
Scheduled on the device: no server, no account, and they still arrive in flight mode.
08 — Try it yourself
Test the real mathematical and security logic used inside Mizan right in your browser.
The maths the Zakat manager runs for each wealth, at one moment in time. Change the numbers to see whether it reaches the Nisab and what 2.5% comes to:
In Mizan, there is no “Forgot Password” link that sends an email to a server. Instead, you get a 16-character key you can write down or print. Tap the button to see how it looks:
09 — Built for everyone
Mizan isn’t just an English app that was translated through Google. It was engineered so Arabic, Urdu, Hindi, Bengali, Spanish, French and German speakers feel right at home.
Click the button on the right to see how the layout, arrows, and numbers naturally mirror from Right to Left.
English, Arabic, Urdu, Hindi, Bengali, Spanish, French, and German—translated with real cultural idioms, not robotic machine text.
Automatically respects your phone’s camera cutouts, notches, dynamic islands, and bottom gesture bars.
Buttons and inputs are comfortably sized so you never accidentally misclick with one-handed thumb use.
High-contrast dark mode designed for clear reading at night without blinding glare or washed-out text.
10 — Under the hood
Clear, honest answers about the architectural decisions made in Mizan.
LocalStorage has a strict 5MB limit and blocks the main thread synchronously. If someone has a few thousand transactions with notes, LocalStorage would freeze the screen. Native SQLite requires heavy native plugins that often break across versions. Dexie.js gives us the best of both worlds: asynchronous IndexedDB with reactive live-queries so the UI updates instantly with virtually unlimited storage.
The emergency key is generated using random entropy directly from the device’s Web Crypto API, formatted into 16 base-32 characters. When the user prints or writes this key down, it serves as an offline cryptographic secret to re-verify identity if they forget their daily PIN. Everything happens strictly inside the phone’s memory—no server is ever contacted.
Instead of hardcoding left and right margins, the entire design system uses CSS logical properties (like padding-inline-start and margin-inline-end) and flexbox gaps. When the app detects Arabic or Urdu, setting dir="rtl" automatically and gracefully mirrors transaction cards, swipe actions, and chevrons without messy manual overrides.
On Android, the OS was automatically restoring old IndexedDB data after an uninstall because of Google Cloud Auto-Backup (android:allowBackup="true"). When a user uninstalled the app and reinstalled it, they expected a clean start, but old data reappeared! I disabled the OS backup flags in AndroidManifest.xml and built an explicit in-app factory reset manager that safely purges all local tables on demand.
Yes, if you choose to. Mizan has no servers of its own and works 100% offline out of the box. If you want a cloud copy, or to reach your data from another device, you can switch on Personal Firebase Sync in Settings and connect your own Google Firebase project by entering its configuration details. It stays off until you enable it, and your data goes to your Firebase project, never to me: whether anything is uploaded to or read from the cloud is entirely in your control.
No financial data, ever. Your balances, transactions, notes and PIN stay on your phone (unless you switch on sync to your own Firebase), and nothing is used for ads or profiling. The only thing the app sends is anonymous crash and stability diagnostics through Google Analytics, so I can find and fix bugs. It never includes passwords or your financial records, and you can switch it off any time in Settings under Anonymous App Analytics.
Mizan is completely free, 100% offline, and ready to install on your Android phone today.
11 — Solo development story
A few years ago, building an Android app with local encryption, multi-currency support, eight languages, and full accounting logic required an entire 5-person agency. Here is how I shipped it alone with Google DeepMind’s Antigravity AI.
I made the core product decisions: no remote cloud databases, no user accounts, and no tracking of your data. I directed Antigravity to help structure an ultra-fast local database using Dexie.js (IndexedDB) that handles thousands of transactions instantly.
Database: IndexedDB / Dexie.js
Instead of getting stuck on manual math, I worked with Antigravity as my pair-programmer to write and verify the formulas for Zakat Nisab benchmarks, the 16-character cryptographic recovery key, and the CapEx/OpEx wedding planner.
Math: Shariah Nisab & PBKDF2 Keys
When hardware bugs showed up—like Android restoring data after an uninstall or floating status bars overlapping headers—I used Antigravity to quickly isolate the root causes, patch the native Capacitor bridge, and assemble clean release APKs.
Hybrid Build: Capacitor 6 & Android Gradle
Hybrid app, built with
About me
Mohammad Azad · Senior UI/UX Designer, Product Designer, UI Developer and UI Engineer
I designed, built and launched Mizan on my own. Google DeepMind’s Antigravity AI worked beside me like a coding partner, helping with everything from setting up the database to building the Android app. That’s how one person finished an app that would usually take a small team.
The four hats I wore
How it looks and feels
What it should (and shouldn’t) do
Turning the designs into a real app
Making it fast, offline and safe
