Learn To Build a Real Time App Like WhatsApp - Java - NullClass

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Do you also love chatting? Are you also fascinated with apps like WhatsApp and signal? You can voice call someone using the Internet or even video call someone, you can simple press a button to send an audio message as well. In today’s advancing world it is very significant to move forward with the technology or you will definitely be left behind. Using a smart chatting app like WhatsApp is not only trendy, but also feasible. If you are interested in building an app like WhatsApp then you have definitely come to the right place! NullClass is here with yet another trendy course which will definitely solve your problem! Here you will not only learn the theoretical aspects of developing an app but also, the practical knowledge to work with in the real world.
What does whatsapp app do? WhatsApp is free to download messenger app for smartphones. WhatsApp uses the internet to send messages, images, audio or video. The service is very similar to text messaging services, however, because WhatsApp uses the internet to send messages, the cost of using WhatsApp is significantly less than texting.
What will you be learning? 
  • Android Studio Download
  • Java
  • Firebase Authentication
  • Firebase
  • Email id Login and validation
  • Phone Number Authentication
  • Data validation
  • Pattern matching
  • Exception handling
  • Debugging
  • Date validation
  • Automatic login
  • Unit Testing
  • UI Testing
  • Glide
  • Api
  • Splash Screen
  • Recycler View
  • Card View
  • Github
  • Tab Layout view
  • Different Layouts
  • Dialog box
  • Alert dialog box
  • Toolbar
  • Status
  • Chat contacts
  • Database reference
  • Requests to contacts
  • File transfer
  • Storage reference
  • Settings Activity
  • Profile Activity
Features and benefits:
After the completion of this course you will be one step closer to having a better insight into the amazing world of Android and coding. With the knowledge and experience you will be gaining from this course you can even start doing projects and even freelancing.
Refund :
You can get 100% refund until 7 days of enrolment.


1. How to get the assignment after completing the training?

Email will be sent to you within hours after you have completed your project.

2. Will we get one to one mentor?

Yes, every student will have access to one mentor until they complete the training.

3. How will our daily progress be checked?

This training is self-paced and students can complete it according to their speed and comfort.

4. Do we get real – industry experience?

Yes, students will definitely get exposure to the real industry experience as we will teach students the current work happening in the industry.

5. Do we get a certificate?

Yes, students will get industrial certificate.

6. There are other platforms to learn. What is unique in your training?

Unlike other platforms, NullClass provide students with real industrial experience.

7. Do you offer demo classes?

Yes, students will get a demo of the training before enrolling.


Teacher, Author, CEO

The founder wants to make it possible for every individual struggling to find a job, to accomplish more, and live life on their terms. Determined and optimistic, he has spent countless hours in his venture to solve students’ problems, both academic and personal.... The founder wants to make it possible for every individual struggling to find a job, to accomplish more, and live life on their terms. Determined and optimistic, he has spent countless hours in his venture to solve students’ problems, both academic and personal.

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Course Curriculum

Whatsapp Demo FREE 00:09:00
Whatsapp Source code 00:00:00
Programming Basics
Programming Basics 1 00:14:00
Programming Basics 2 00:31:00
Programming Basics 3 FREE 00:10:00
Programming Basics 4 00:22:00
Creation of WhatsApp app
Whatsapp Demo FREE 00:09:00
Whatsapp Project Creation 00:02:00
Whatsapp Drawable And Dependencies 00:10:00
Whatsapp Building Project 00:02:00
Whatsapp Connect-to-firebase 00:07:00
Whatsapp Firebase-Rules 00:07:00
Whatsapp TabLayout 00:24:00
Whatsapp Login Ui Part 1 FREE 00:12:00
Whatsapp Login Ui Part 2 00:12:00
Whatsapp PhoneNumber Login And RegisterActivity UI 00:12:00
Whatsapp activitySettings-Ui 00:09:00
Whatsapp signup with email and password 00:41:00
Whatsapp signOut 00:22:00
Whatsapp phone Authetication 00:46:00
Whatsapp LogIn Activity 00:24:00
Whatsapp Settings Activity 01:03:00
Whatsapp Main Activity 00:28:00
Whatsapp Correction In LogIn Activity 00:06:00
Whatsapp Fragments 00:03:00
Whatsapp Floating Widget 00:12:00
Whatsapp User Display Layout 00:24:00
Whatsapp Find Friends Activity FREE 00:31:00
Whatsapp Profile Activity Ui 00:12:00
Whatsapp Profile Activity 01:02:00
Whatsapp Request Fragment 00:51:00
Whatsapp Status Layout 00:05:00
Whatsapp Status Fragment 00:45:00
Whatsapp Status Activity 00:23:00
Whatsapp Chat Fragment 00:32:00
Whatsapp Chat Activity UI 00:21:00
Whatsapp Chat Activity 01:05:00
Whatsapp Message Adapter 01:02:00
Whatsapp Bugs Fix 00:07:00
Whatsapp Firebase Functions 00:01:00
Whatsapp Notification-Download Node Js 00:05:00
Whatsapp Device To Device Notification 00:04:00
Whatsapp UI-Unit_GitHub 00:12:00
Whatsapp Building Apk 00:01:00

Perks and Benefits


Students will get an internship certificate.


Students will be able to connect with mentors to resolve doubts.


Students will get a stipend of ₹3000 if they complete the internship task in 30 days.

Refund policy

You can get 100% refund until 7 days of Enrollment.

Course Reviews


55 ratings
  • 5 stars29
  • 4 stars20
  • 3 stars5
  • 2 stars1
  • 1 stars0
  1. Whatsapp


    The course was very comprehensive and easy to understand. The instructors made sure that they are giving the information in a way that won't make me confused. Thank you so much for this great course

  2. worth the price


    Really a great course, well worth the price. Happy to see a real-world application rather than a demo app that is not useful.
    The instructor was very knowledgeable and explained important points very well.
    Very happy 🙂

  3. life changer


    Wow! A combination of great content and a great teacher.
    I'm really happy I started my app development journey with this course.
    It begins with the very basics and transitions into the advanced sections, all while still teaching relevant topics.
    This is a life changer. Thank you, Nullclass!

  4. Really amazing


    Really amazing course each lecture are very clear-cut explanation. Nullclass’ teaching style is very superb! Whenever anyone asks me, for app development. Definitely I recommended this course.

  5. For beginners


    Learning programming seemed like an impossible task for me a year ago. Thanks to Nullclass, now I can say with  confidence that I have managed to grasp the fundamentals of programming.  The content in this course is clear, well-structured and more importantly, easy to understand for absolute beginners like me.

  6. learning more.


    Congratulations Nullclass, I am here to congratulate you and myself for building our first android app together as you told. I am on the first chapter, and I am looking forward to learning more.

  7. the right moment


    I haven't finished yet, but I love your course. Everything is so clear. You keep anticipating my questions and answering them at the right moment. Your challenges are really motivating. Thank you so much. It's exactly what I've been looking for. 🙂

  8. make better programs


    Even though know how to code I couldn't make better programs and apps by myself, so I came up on this course I wasn't very hopeful at first, but I was wrong, this course teaches you exactly what you need for app development with real-time. I recommend it.

  9. creative-insect


     Learning how an app in your daily use works is a thing and learning to actually make an app like that is another. If you have that creative-insect crawling inside your head, this is the place where you should be.

  10. Thank you for this course


    Thank you for this course! I gained a lot of experience. I also learned how to use my knowledge in a useful and effective way to get amazing results. Earlier I was just a metal ore dug out of the ground but this course helped me to polish myself and bring out the gem inside. Sincerely recommended.

  11. Best for beginner


    this is a awesome course. you just need to follow all the steps and contents that they provide us otherwise you might be face big issue.

  12. very well


    whatsapp is one of the apps i really love since it is a lot more than just texting and calling. This course taught me very well and easily how to create my very own whatsapp app. Thank you for this course.

  13. Whatsapp


    Helpful for me.

  14. amazing course


    I hope that I find courses like these soon. I really loved this course and would love to actually come across from more courses of this sort. Thank you nullclass for this amazing course opportunity.

  15. real world examples


     I just loved this course by nullclass on how to develop your very own whatsapp app. Its best features are that it is based on real world examples along with theoretical explanations.

  16. own whatsapp app easily


    i really liked this course on how to develop your very own whatsapp app easily. The best thing about this course was that staff was very helpful

  17. definitely recommend


    I enjoyed this course to the fullest and would definitely recommend if to you if you are a beginner level or intermediate level app developer.

  18. own whatsapp app


    i really liked this course on how to develop your very own whatsapp app easily. The best thing about this course was that staff was very helpful

  19. app development course


    app development might seem to be scary and intimidating at first but believe me it’s not. At least with nullclass it’s not. i have enrolled in and attended several of their app development courses before this one and one thing i am certain of is that they know what they're doing. They know how to teach app development.

  20. nice one


    it was great to see this

  21. WhatsApp Clone App


    really amazing course for Android Developers

  22. About whatsapp clone app


    i have learned a lot in this courses

  23. Excellent


    It was an excellent course with real time examples

  24. WhatsApp


    It fully covered all the concept to build a real time app like whatsapp app . It was really useful.

  25. build a real time app like whatsapp


    very helpful and exited

  26. Review


    Nice lectures overall

  27. Real time application like what's app


    I had learn more contents about creating a application, developing them .

  28. Awesome


    It was nice to listen but i am not able to practically

  29. Good


    The videos were understandable and nice.

  30. Everything was just right


    Everything was just right at the NullClass Java course. Mentor was supportive and always solved my queries. It was smooth throughout and clear. Great experience

  31. WhatsApp app


    I am have way through this project. I'm satisfied by the teaching and teamwork. The mentors are really good and helpful.

  32. WhatsApp app project


    This was really good project that I've ever tried. It wasn't tough and was smooth overall. I'd recommend people looking for projects like these

  33. WhatsApp


    With this project being completed i feel I've done improvement in my coding skills. I feel confident now about building any app because of this project. Thank you NullClass for this opportunity

  34. WhatsApp project


    This project teaches you both simple codes. It helps improve and motivate yourself by building these apps. I really liked completing this course. it was informative and Aspiring.

  35. Lectures


    It is quite helpful

  36. Good project


    The courses are so informative and delivered in a way that is engaging, memorable, clear and concise. The course was short but I was able to learn something and apply my new skills into practice

  37. good


    it is very usefull

  38. WhatsApp project


    Personally I liked it a lot and found it useful. It covers all the necessary aspects of the subject in a short time.
    Thank you to all who contributed to such a great work.

  39. Excellent course


    The instructor was good! I joined the course already with some knowledge of the program, but learned a good deal more thanks to your course

  40. Excellent mentor


    I was not that much confident but now i have much more knowledge and I am definitely going to recommend this course and training to my friends. The mentor was really good and the tutorial videos were helpful

  41. Beneficial


    This course taught me some new things and also reminded me of things that I had already learned but may have forgotten. The course was great.

  42. good


    usefull content

  43. Good video tutorials


    You provided us with very good and clear knowledge about concept and all concepts were clear about the course and its contents. Thanks for notes and videos.

  44. Good


    I learned a new things from this it's quite amazing to me.
    Thank You NullClass for this internship.

  45. Nice Course


    i have cleared my all doubt

  46. Great


    It is also a great course.

  47. Poor Language


    Language skills is poor
    and you are telling to enter this line, enter this line. but not telling why to enter that code line!

  48. Review on whatsapp clone


    Lectures are so easy and more importantly all the things described and liked the course

  49. Having A Good Course .


    learn many new Good things which may help in future .

  50. It was great learning experience from Null Class.


    It was a great experience learning how to make a whatsapp clone

  51. Nice Course


    Great Content

  52. Good course


    This course is indeed good. The mentor and the assignments were great. The overall experience was amazing

  53. Fault i got in these course


    course is good but if we get any error in it we have man problems to solve it null class employee very bad reply hours they dont reply

  54. Amazing experience


    learn new things, it was a great experience

  55. rating about whatsapp api course


    it was nice and simple

Courses > Learn To Build a Real Time App Like WhatsApp - Java

Learn To Build a Real Time App Like WhatsApp - Java

4.4( 55 REVIEWS )

Overview Do you also love chatting? Are you also fascinated with apps like WhatsApp and …