Adding a Mobile App to a Marketplace That Already Works on the Web
When a web marketplace needs an app, how to build it on your existing API and designs, React Native or Flutter, which side to build first, and what it costs.
Alexander Rocket9 min readOct 17, 2026
A Muslim marriage app is a matchmaking app for people who want to marry, not date. Under the hood it shares a lot with a dating app: profiles, search, chat and payments. What’s different is the set of rules around them. A guardian (wali) can take part, families can be involved, photos stay private, and the app talks about marriage, not dating.
Build those rules into the first version. They give members a reason to pick your app over a general one, and they help you through Apple review, where dating is a category Apple says is already crowded. We learned this rebuilding HealthyNikah, a UK app with more than 3,200 members, which relaunched on the App Store and Google Play on 2 June 2026 (HealthyNikah case study).
Start with your community, not a feature list
Muzz is the name most people search for in this space: “muzz app” gets about 12,100 Google searches a month. It’s tempting to copy its feature list. Don’t start there.
Muslims differ by country, culture, school of thought and how they practise. A feature that feels right to one community can feel wrong to another. So before you design anything, ask the people you want to serve:
- Who should see photos, and when?
- Should a wali join chats, approve contact, or stay out unless asked?
- What profile details matter for marriage, and which feel too personal to show?
- Who pays: the member, the family, or both?
Where answers differ, turn them into settings instead of fixed rules. HealthyNikah’s client already had a working community, found mostly through Instagram and an older app, so the features came from what that community expected. Our guide on how to validate a startup idea shows how to run these conversations if you’re starting from zero.
The demand isn’t only in English. In our Keyword Planner data, the Arabic for “marriage app” (تطبيق زواج) gets about 3,600 searches a month, the Malay “aplikasi jodoh” (matchmaking app) about 1,600, and the Indonesian “aplikasi taaruf” about 880. Taaruf is the word used in Indonesia for getting to know someone with marriage in mind. These numbers only count people with an English-language Google setting, so the real numbers are higher.
Features that make it a marriage app
HealthyNikah has these features, all in one Flutter app for iPhone and Android. Use it as a starting point, then adjust it to your community.
| Feature | What it does |
|---|---|
| Sign-up with an 18+ check | A few short steps: age check, profile and country of residence |
| Guardian (wali) consent | Built into the app, as the community expects |
| Family contacts | Required on women’s profiles |
| One-time blurred photo view | Pictures stay private |
| Feed with search and filters | Search and filters sit in the main feed, with pull to refresh |
| Profile code search | Find the exact person whose code someone shared with you, for example a family member |
| Paid match requests | Each request costs a credit, and members can top up |
| Push and email notifications | Members hear about new requests and replies |
| Admin panel | The client’s team manages members and the platform |
Two things on this list are easy to underrate. The profile code search fits matches that start with a parent or friend passing on someone’s details. And a credit per match request means every request costs the sender something.
How to design the wali feature
The wali feature can take several shapes, and the right one depends on your members. Some options:
- The wali approves before a match request goes through.
- The wali can read the chat, or joins it as a third person.
- The member chooses whether to add a wali at all.
Whichever you pick, explain it in plain words during sign-up. On HealthyNikah, we rewrote the onboarding text, the privacy notes and the reason for asking for family contacts together with the client, so the app talks to members the way they expect.
Privacy: religious data needs extra care
A marriage app holds sensitive details. Under UK GDPR, personal data that reveals religious beliefs is “special category data”, and so is data about a person’s sex life or sexual orientation (ICO). The ICO says that when you process it, you must identify an Article 9 condition, an extra legal ground on top of the usual one.
In practice:
- Collect only what matching needs, and say why you ask.
- Keep photos private by default and let members decide who sees them.
- Store data on infrastructure you control. HealthyNikah’s backend moved to the client’s own AWS account, and we fixed what a security audit found.
- Let people delete their account and data from inside the app. Apple and Google both require it.
When you talk about your app in public, describe features, never member data.
Getting past Apple’s dating rule
Apple’s guideline 4.3(b) lists dating among app types that are “well established” on the App Store and says Apple won’t accept new submissions “unless they offer a meaningfully different or improved experience” (Apple App Review Guidelines).
HealthyNikah ran into it. Apple first rejected the app as one more dating app in a crowded category, even though it’s built for marriage and an earlier version had passed review. Three steps got it through:
- We removed the dating language.
- We appealed to Apple. Apple lets you appeal to its App Review Board if you think the reviewer misunderstood your app, as long as you give specific reasons it complies (Apple App Review).
- We sent a new build. The guardian consent feature passed review along the way.
The app was approved on 29 May 2026 and went public on 2 June.
What we’d tell anyone starting now: describe your app as a marriage app everywhere, from the name and screenshots to the review notes. Show the features a dating app doesn’t have, like wali consent and family contacts. Give the reviewer a test account with a filled profile. And send the build early, so a rejection doesn’t eat your launch date.
Apple’s other rules apply too. Profiles and chat count as user-generated content, so guideline 1.2 asks for filtering, reporting, blocking and published contact details. Google Play has similar requirements. Our post on what a dating app costs goes through each one.
Money: joining fees, subscriptions and credits
HealthyNikah uses three ways to charge, and you can mix them the same way:
- A joining fee when a member signs up.
- A subscription that starts billing later.
- Credits that members spend to send match requests, with top-ups.
On iPhone and Android, anything that unlocks features in the app must go through the stores’ in-app purchase systems (Apple guideline 3.1.1). HealthyNikah’s old custom billing system kept breaking and charged some members twice. We replaced it with RevenueCat, which connects to Apple and Google in-app purchases, with Stripe for payments outside the stores. The new subscription flow was tested and worked at launch.
Be clear about what members pay for and when the subscription starts billing.
A build order that works
- Talk to 20 or more members or families and write down what they expect.
- Sign-up with an 18+ check, a profile and privacy settings for photos.
- The feed, search, match requests and chat.
- Wali and family features, worded with your community.
- Report, block and an admin panel your team checks every day.
- Payments through RevenueCat and the stores.
- A store listing that reads as a marriage app, sent to review early.
A focused first version costs $5,000 to $15,000 with us and takes 2 to 4 weeks. A rebuild of an app that already has members, like HealthyNikah, costs more, because the old code and the moving members decide the work. We price those after a code audit.
If you already have members
Some marriage apps start from a community that already exists: an Instagram page, a WhatsApp group or an older app. That community is your biggest asset, so the move to a new app must feel like an upgrade. HealthyNikah moved more than 3,200 members from spreadsheets: their profiles arrived filled in, unused credits moved with them, paying members got their first month free, and moved profiles stayed out of the feed until their owners logged in. We wrote the full story in how to rewrite a live dating app without losing members.
If you’re comparing teams for a matrimonial app development company, ask to see a marriage or dating app they took through Apple review, and ask what happened the first time.
FAQ
How much does it cost to build a Muslim marriage app?
A focused first version with profiles, privacy settings, match requests, chat, wali features, safety tools and payments costs $5,000 to $15,000 with us and takes 2 to 4 weeks. Rebuilding an app that already has members costs more and is priced after a code audit.
How is a Muslim marriage app different from a dating app?
It’s built for people who want to marry. Families and a guardian (wali) can take part, photos stay private by default, and the app’s wording is about marriage. The code underneath is similar: profiles, search, chat and payments. The rules around them are what make it a marriage app.
What is a wali feature in a matrimonial app?
It lets a member’s guardian take part in the match. Depending on the app, the wali approves contact, can read or join the chat, or is added only if the member chooses. HealthyNikah has guardian consent built in and requires family contacts on women’s profiles.
Will Apple reject a Muslim marriage app as a dating app?
It can. Apple’s guideline 4.3(b) lists dating as a crowded category. HealthyNikah was first rejected this way. Removing dating language, appealing with specific reasons and sending a new build got it approved. Describe your app as a marriage app everywhere and show the features dating apps don’t have.
How do you keep photos private in a matrimonial app?
Hide or blur photos by default and let members decide who sees them and when. HealthyNikah has a one-time blurred photo view, so pictures stay private. Store photos on infrastructure you control and delete them when the account is deleted.
Is religious data sensitive under GDPR?
Yes. Under UK GDPR, data that reveals religious beliefs is special category data, and the ICO says you need an Article 9 condition to process it. Collect only what matching needs, explain why, protect it, and let members delete their account inside the app.
See what your app would cost
Describe your marriage app in a few sentences. Our AI estimate turns it into a scope, a budget range and a timeline in about four minutes.