How it works

The ideas behind MARHABA, so the app's behaviour makes sense.

What it does

Payments wait for the masjid. The app never takes your money: you pay the masjid's UPI ID or bank account directly. The app only carries your reference number and screenshot to the masjid. Until the treasurer sees the money in the masjid's account and approves it, your payment shows as Processing (or, for dues, waiting for the masjid to check) and does not count. Once approved it is recorded in the right fund (donations, Zakat cell, Fitr Zakat or membership) and a real receipt is issued. If it is rejected, nothing is recorded and you see the reason.
Receipts carry a QR code. Every receipt the masjid issues has its own secret link, printed as a QR code. Scanning it opens the receipt from the masjid's records, so anyone can check it is genuine. A receipt is never edited: if a mistake is found the masjid cancels (reverses) it and the same link then shows Cancelled receipt.
Following decides what reaches you. You can follow up to 3 masjids. Following brings that masjid's news, calendar events and notifications for followers to you, and puts the first one on Home as My masjid. You can still open any listed masjid's page and give to it without following it.
Your masjid sees only what the app needs. Following does not share your details. Giving shares your name, phone and payment proof with that masjid so it can check the payment. Applying shares your answers and files with that masjid. Linking your membership only connects your app account to the member record the masjid already has; your profile, family list and other masjids stay private.
Dues work the same in the app as at the masjid counter. The masjid's fee plans create a due each month (for each member or each family). A payment clears the oldest dues first, and anything extra is kept as advance for later months.
Organisation messages come by area. The Wisdom organisation can send news, events and notices to the masjids in a district, zone or unit; you see them through the masjids you follow.

Follow a payment from sending to receipt

Send the payment from Give or Pay dues. It appears as Processing under Me → My giving (dues show on the Dues & receipts card as waiting to be checked).
The masjid's treasurer matches your reference number with the money in the masjid's account.
When approved, you get a notification and the status changes to Verified.
Tap Receipt (My giving) or the receipt under Payments (Dues & receipts) to open it.
Scan its QR code or share its link any time to show it is genuine.

Questions

Why doesn't the app take card payments directly?

Money goes straight into each masjid's own account, which is safest for everyone. Online payment needs each masjid to set up its own payment account, and that is not available yet.

Can the masjid change a receipt after it is issued?

No. Financial records are never edited. A wrong receipt is cancelled and a new one issued, and the old link shows Cancelled receipt.

What does my masjid see when I follow it?

Nothing about you personally. Only the number of followers is used, for example to show how many people a notification will reach.