Mobile appDating & live streamingOriginal by happn
The appeal of happn is that it ties dating to real-life coincidences: people whose paths crossed yours during the day appear on a timeline. The idea of meeting someone who sat in the same cafe or walked down the same street offers a more romantic, natural story than an ordinary swiping app. No chat opens without a mutual like, which keeps control of who to meet with the user.
To build something similar you need a mobile app that collects location in the background but limits battery use, a backend that compares location points and calculates crossings, and a privacy layer that never reveals an exact address. A timeline, matching, chat and a moderation panel are part of the product too. Because location data is sensitive, explicit consent, retention periods and the user's option to become invisible should be at the centre of the design.
How happn works: the core user flow
How many apps and dashboards do you need?
User app
Adult users see people whose paths crossed theirs on the timeline, like them, match and chat.
Location and matching service
A backend layer that compares users' anonymised location points and produces crossing records.
Moderation and admin panel
The team reviews reports and manages subscription and credit packs, city-level settings and privacy requests.
Critical features of a product like happn
Crossed-paths detection
Users who were in the same area within a set distance and time window are paired; the number of crossings and the approximate time are shown.
Location privacy layer
Exact addresses and live location are never shared; distances are rounded, and sensitive areas such as home and work can be excluded.
Battery-friendly background location
Significant-change and region monitoring APIs are used, so location is taken at smart intervals instead of constant GPS.
Invisible mode
Users can become invisible at set times or with one tap; no location is recorded during that period.
Crossing point on a map
The approximate area of the crossing is shown on the map as a blurred zone, which gives a natural opening topic for a chat.
Special likes and credits
Special likes that reach the other person with a notification are sent with credits; with a subscription you can see who liked you.
What goes into the first version, what comes later
First version (MVP)
- Age-checked sign-up, profile and location permission management
- Background location and crossed-paths calculation
- Timeline, likes and matching
- Real-time chat, blocking and reporting
- Invisible mode and exclusion of sensitive areas
Later releases
- The crossing zone on a blurred map
- Special likes and a credit system
- Seeing who liked you with a subscription
- Voice messages and video calls
Modules and how the budget is calculated
The budget is calculated with 360 SOFT’s pricing model from the modules below, about 24 screens and the project’s complexity: roughly 179 person-days for the full scope and 116 person-days for the first version. Every module you drop lowers the budget directly.
| Module | Phase |
|---|---|
| Sign-up, login, social login | First version |
| User profile and settings | First version |
| Admin dashboard | First version |
| Subscriptions and recurring billing | First version |
| Online payments (Stripe / PSP) | First version |
| Real-time messaging | First version |
| Push notifications | First version |
| Email / SMS notifications | First version |
| Maps, location, routing | First version |
| File, photo, video upload | First version |
| GDPR and security hardening | First version |
| Reporting and analytics | Later release |
Hosting, SMS, map APIs, app store accounts and payment-provider fees are separate items. Maintenance and improvements (optional): €600 / month. We send a fixed written price within 24 hours after a free discovery call.
The hard parts
Location privacy and GDPR
Continuous location data can reveal a person's routines; explicit consent, short retention, anonymisation and rounding against the risk of stalking are mandatory.
Battery use and platform permissions
iOS and Android closely police background location and review permission texts; for store approval you must clearly justify why location is needed.
Moderation and safety
The emphasis on real-life encounters raises the risk of harassment and stalking; fast blocking, report review, age verification and the store rules for the dating category must be respected.
Business model
The freemium model fits: seeing crossings and liking is free, while seeing who liked you, unlimited special likes and advanced filters come with a subscription. Special likes sent with credits provide micro-purchases. As city density grows, secondary revenue opportunities such as venue and event partnerships and local sponsorships also appear.
Get a free quote for your project
Let us scope it together and send a fixed written quote within 24 hours. NDA on request; you own the source code.
Choosing a company to build an app like happn
Most people searching “build an app like happn” are really looking for a reliable app development company. When comparing quotes, check four things:
- Can you try similar products they have shipped, in the stores or live?
- Are the source code, design files, servers and store accounts transferred to you by contract?
- Do they show a working demo every two weeks, with written scope and acceptance criteria?
- Are maintenance, scaling and GDPR/security costs written into the quote?
Copyright and trademarks
A business model and features are generally not protected on their own, but the happn name, logo, interface design, content and source code are. That is why we build a product with similar functionality but your own brand, design and code. This is not legal advice; we recommend a trademark search before launch.
Frequently asked questions
How long does it take to build an app like happn?
A first version made up of location, crossing calculation, a timeline and chat can be built within a few months. The part that takes the most time is making battery-friendly background location run reliably on both platforms.
How is location data kept safe?
Exact coordinates are never shown to users, are kept on the server only briefly and then anonymised, and distances are rounded. The GDPR calls for explicit consent and a privacy notice; legal advice on the matter should be sought.
Could there be copyright or trademark problems?
The idea of dating based on crossed paths is free to implement. The name, logo, interface design, content and code cannot be copied; this is not legal advice.
What should I look for when choosing a company to build an app like happn?
Choose a team experienced in native location services, geospatial queries and battery optimisation. Ask about their experience with privacy by design and store approval processes.
