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Modern technologies have changed not only man-machine relations but also significantly impacted the interpersonal relationships. Can you remember when you last sent a hand-written letter or notified anyone about the upcoming meeting personally? Today we hardly use such means of communication due to the abundance of electronic tools. More and more people are going online to find a life partner. That is why creating apps, chats, sites of a dating background have become extremely popular these days. If you're going to develop one you should definitely pay attention to one of the brightest representatives of such services - Tinder app. This is a mobile application that allows searching for people who are ready to meet and communicate within a certain area. How much does it cost to make app like Tinder? In short, the cost of a Tinder-like app depends on the complexity of its functionality and the development company you choose. Roughly, the basic Android or iOS app will cost you $50-55K at average Eastern Europe hourly rates of $50. If you want to build apps for both platforms simultaneously, your budget will strike and exceed $100K. Let's move forward to find out the details. Algorithms behind Tinder success The aspiration to build a Tinder clone doesn't fade over the years. Obviously, that's due to its stunning popularity. The statistics are quite impressive. So you may be interested in what makes the dating app like Tinder so in-demand. First of all, Tinder functionality is really simple for users. Actually, it lies in swiping right and left for liking or skipping a particular person respectively. In case the other person returns the affection, Tinder creates a match. Tinder is open for the integration with Instagram. Users can access the Instagram profiles of their matches. Note that Tinder supports logging in with user's Facebook account. So users can see whether they have common friends, common interests and favorite places. Techniques that make a Tinder app popular Despite the fact that the Tinder functionality may seem very simple at first glance, it hides fairly complex algorithms invisible to users. Consider the following peculiarities when you create Tinder-like app: Users can see only one person at a time but there are thousands of users swiping left and right simultaneously; Each user (or, at least, particular groups of users) sees people in a different order. It means that the developer's task is to structure the profiles into different groups; Attractive and unattractive people are intentionally mixed up and shown to diverse users with non-repeatable frequency; A specific algorithm must be in charge to define who, when, and to whom should be shown to create a match in applications like Tinder. The logic described above should be implemented on the server-side of the application. The backend can be made with the help of PHP, .NET, Java, Python, or other server-side technologies. In this matter, you should approach with great care to the choice of the server-side Tinder app developer. Tinder app features and Technologies in use The above algorithms are not the only points that you should pay attention to when considering the cost of creating an app. Tinder has many other functions. Their implementation requires a certain amount of time and money. Let's look at them one by one. 1. Authorization and user profile To build an app like Tinder, you should use a Facebook authorization engine. It is usually implemented via an open authorizations protocol, like OAuth. The registration is implemented so that the app itself does not remember the login and password of the social media account (in our case - Facebook). However, it uses these credentials to create a new account within the application. Another way to log in is using the phone number. To make your own Tinder app, you can go further and use any of the existing kinds of user authorization. Profile editing is implemented via the client-server sides of the application. On the client side, the user enters/edits the data (gender, bio, photos). On the server side, appropriate records are saved. Tinder has invented something unusual, check it out! Tinder allows creating a Web profile so that it could be found even by the users beyond the application. When clicking 'Like me on Tinder' button the user is redirected directly to the application or to the Google Play Market / Apple App Store in case the application is not installed. The mechanism of the implementation is as follows: the client side sends a request to the server. The server remembers that the user wants his photo to be seen when clicking the link. The server generates the link and shows the photo to everyone who clicks it. This is how Tinder works with users and their profiles. Try to use the same approach when you create an app like Tinder. 2. App settings and notifications Like any other app, Tinder allows adjusting the appropriate setting for the convenience of usage. For example, you can enable or disable the notifications as for the creation of new matches, receiving messages, likes, super likes. You can also choose preferable units of measurement for displaying a distance (km or mi). Receiving notifications can be implemented via the interaction of your application with Apple / Google servers. The device where the app is installed is registered on the appropriate OS server and gets a certain ID. Afterward, the app server supplies the app with the push notifications if they come. To enable push notifications in your Android app use FCM (Firebase Cloud Messaging). For iOS app refer to APN (Apple Push Notifications). 3. Geolocation and Communication Geolocation is the basis of the application. Without it, the app would be useless since it is all about finding people near you. Use Google / Apple Locations and Maps services to integrate the geolocation into your Tinder-like app. For Android, you are going to employ the classes of android.location package and the MapView class, for iOS - the CLLocationManager Class and Map Kit framework. In Tinder users can chat with each other only when they have mutual likes. Otherwise, the chat is disabled. As a rule, this function is implemented via the RESTful API or through HTTP. Permanent socket connections are not involved in order not to overload the server. The polling interval is set up depending on the frequency of the messages being sent. Users can connect their Tinder profiles with Instagram so that the recent Instagram photos to be available on Tinder as well. Tinder content does not go to Instagram, though.

If you're looking for a cost-effective and fast way to hire iOS developers, you should pay your attention to software outsourcing companies. As a rule, they offer two cooperation models: #1 You hire iOS app developer (doesn't matter one, two, three or more) and pay in accordance with a per hour rate of that company on each individual. This model is sometimes called outstaffing or dedicated team. In case you pick it, all the management aspects lay on your shoulders and the hired developer can work both as a part of your already existing team (if any) or carry out your tasks. #2 You contact company's representatives, explain your requirements and they build an app for you from scratch. In this case, all the management aspects, as well as responsibilities for the entire chain of processes (from design to release), lay on the company. You can search for outsourcing companies on specialized resources like Clutch or GoodFirms. There you'll find detailed information about firms, reviews from their customers, as well as flexible search by countries, industries, hourly rates, and more. Searching for firms on Clutch Pros If you urgently need to find iOS developer with extensive experience, outsourcing company is one of the best options as such firms keep an eye on their employees' skills and train them all the time to stick to high industry standards. No need to worry about vacations, dismissals, recruiting and anything else that may freeze the project development. Unlike freelancers, iOS developers who work in one firm can communicate all the time and share the experience with one another. As a rule, freelance iOS developer rates and rates of experienced developers working in a firm are the same and sometimes even lower (it depends on a region). It's still cheaper than hiring an in-house developer and you don't have to pay taxes. The entire management process lays on the company's project manager and you get the constant feedback from him/her. Cons In case the company you've picked is situated in another country, you may face delays in communication which though can be solved by setting up a simple schedule. Cultural gap and language barrier with some countries.