Learn to Build Real Time App Like AppLock - Java - NullClass

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Having an android application such as Applock has perhaps become the necessity of every common man using an android phone. This helps you remain hassle-free and not worry about who might be spying on your phone at the moment and accessing your Facebook, gallery app, or banking app. Applock is regarded as one of the most rudimentary applications when it comes to app privacy.

The charm exponentially increases when you know how to create an android application similar to Pro Applock. While making an android application, the real fun begins when you can customise your application according to your choice of likes and dislikes such as uninstall protection, fingerprint support, locking stuff such as incoming calls, uninstalling apps, and your various system functions like Bluetooth.

Pro Applock android application: 

Before beginning with the course details, let us analyse what exactly the applock application has in store for us. Android has built-in security specifications that help you significantly reduce the chances and impact of security issues. The system is designed so that developers like you can typically build your apps with the default system and file permissions and have no doubts about security.

Here are our reasons why you should definitely try building this application if you aspire to become an android developer:

  • In today’s world, the most important asset for a human is not money, but time and data. It’s quite self-explanatory that data is of extreme importance, not only to individuals but also for big IT companies.
  • Building an applock application will give an extra edge to your portfolio along with adding a versatility to your application.
  • Having an applock application in your portfolio will increase your chances in getting a job or freelance work easily.

About the training:

Candidates who wish to enroll for the course will be required to perform the following tasks:

  • Student will be required to attend the training through 17+ hours of video

series. Student will be able to access the videos available under the curriculum column.

  • Once the student has completed the video lectures, students will receive a mail

regarding the project that he or she will be required to implement.

  • The student will be required to share their project’s APK and code to us as soon as he/she completes the task.

What You Will Learn:

  • Programming Basics
  • Java Basics
  • Android Basics
  • Pattern Lock
  • Litepal Database
  • Android Services
  • Multiple Thread
  • Recyclerview
  • Fragments
  • Third Party Libraray

Features and benefits:

  • After completing the training, you will be able to build a real-world applock android application.
  • MNCs require experience and some hard-earned projects in your skills. After the training, you will have access to both.
  • You will receive a professional mentoring which will make you ready for the
  • With the knowledge on how to make an applock android application, you can monetize yourself and start 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

Section 1 : Introduction
Introducion – Pro Applock FREE 00:06:00
Source Code – Pro AppLock 00:00:00
Section 2 : 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
Section 3 : Creating a Applock app
Setting Up Project 00:13:00
AppList design 00:12:00
AppList Design Content 00:12:00
Loading AppList 00:17:00
Pattern Lock 00:15:00
Lock Screen Conent 00:18:00
LitePal Database 00:08:00
Setting Screen 00:11:00
Services – Part 1 00:15:00
Services – Part 2 00:15:00
Services – Part 3 00:15:00
Service Usage 00:15:00
Final Linking and Output 00:16:00

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


44 ratings
  • 5 stars17
  • 4 stars23
  • 3 stars4
  • 2 stars0
  • 1 stars0
  1. 4

    Great course, really well delivered in a clear and logical way. So many aspects of
    android are covered it creates a great platform from which to start developing Apps
    for the android products.

  2. 4

    As an introductory course, I think a student cannot ask for more than you offer. It
    really starts assuming zero-knowledge, which has been good to me because I wasn't
    used to the android studio platform.

  3. 4

    I'm a 19 year old first-time developer - no previous coding experience or really
    anything techy. This course was absolutely brilliant for teaching me the
    fundamentals and making me realise that nothing is ever as hard as it seems.

  4. 4

    One of the most fluent and best courses one can find ! Simply amazing ! The
    mentor knows how to explain and the entire course has been very nicely portrayed.
    Must have a course. Go for it!

  5. 4

    This was a very knowledgeable course on the whole. I came as a newbie who just
    knew that there is something called toast in android and now I am returning with a
    lot of beautiful knowledge about building android applications. I am glad that I got to
    learn a new skill from such a good instructor who taught all the concepts very
    patiently and tried to reply to all my queries timely.

  6. 5

    Good course to get started with Android development using Java. The app that we
    built during the course is a great way to apply what we learn. The instructor could
    give more technical and thorough explanation of concepts & apply clean code

  7. 5

    I got to admit, I was pretty unsure when I bought this course, but after going
    through about 2 hours, I am really enjoying it and more importantly, I am learning
    more than I ever thought I would. I would recommend taking notes in the start since
    the java syntax can be a little tricky to get used to.

  8. 5

    I really loved the friendly nature of the teacher. It really made me love the topic.
    Everything is taught step by step and slowly which helped me grasp easily. The
    explanations were crystal clear.

  9. 4

    NullClass is really amazing. As a first time App Developer I have gone through
    numerous Tutors but I kept on making mistakes and felt like I wasn't learning
    anything. Since I started your course I can say it's becoming easier and I now know
    what I am doing. I'm so grateful I enrolled in this course. This is by far the best
    Android Course Available for newAndroid Developers like me.

  10. 5

    In my personal opinion, NullClass tells the lesson really well with a
    comprehensive explanation.. I really enjoy learning android development through
    this course.. Some points where I really need detailed explanation were explained
    really well.. I was amazed with how NullClass did their job and I am enjoying my self
    learning and getting the most of it.. Everybody who wants to start learning Android
    should buy this course.. You will never regret it!

  11. 4

    This course is for absolute beginners, don't hesitate if you're one. It was well
    planned and took things gradually to advance level and for perfection you just
    need to practise and practise more. Thanks to the NullClass!

  12. 5

    It is a great experience to learn under them. The quality of the process of study
    is very professional and to the point. Thanks a lot

  13. Good Course


    thanks for this course

  14. Nice


    Nice course 👍👍

  15. My first app


    I have always been fascinated by making apps but thought it would be too tough. But, when i came across the course on building app lock by nullclass I was filled with relief as I had read their reviews in the past and I knew that this is it. And guys it was!! This course on building app lock is so amazing I was so engrossed in this course that I hardly realised how much time was passing!!

  16. Learned lot


    I just completed the course on how to build your own app lock application. I understood everything very well. The staff is also very understanding and supportive.

  17. App lock


    this course is thus far the best one I have attended in the forte of android app development! I would definitely recommend this course to everyone who is interested in android app development!

  18. simply good


    thank you so much nullclass for this amazing course on how to develop your very own app lock app. This course is simply amazing. I would definitely recommend this course to everyone who aspires to become an app developer!!

  19. applock


    I would give this course a big thumbs up and definitely recommend it to any and everyone who is either a beginner in app development or is an intermediate level app developer.

  20. Applock


    I just finished this course on how to develop your very own app lock app. It took me about 2 months to complete this course and I'm fully satisfied!

  21. real-time app lock


    Came to know about the real-time app lock course through a friend, I never trusted any online courses because of previous bad experiences, but this course has changed my mind. This is an excellent course and has increased my app development knowledge by a large margin, I recommend this to anyone wanting to learn real-time android projects

  22. the experience


    Wow! I had been trying to learn app development for so long with other courses and tutorials, but this is the first time I feel like I actually learned something where I don't feel like something is missing at the end. Learning through real-time projects is best, and I got a lot of experience.
    Thanks Nullclass for the experience.

  23. Amazing course.


    Amazing course. This is the best course on Galaxy!! Man, you make me a professional coder and I'd published 3 apps on the play store. Thanks.

  24. so cool


    This is so cool! I'm so excited to develop my own app. Once I got everything in place, I'll get back in here. It'll take me some weeks probably to develop my own app, as I don't have enough tools right now, but it doesn't stop me from learning.

  25. well-qualified professionals


    The course is well-structured, the instructors are well-qualified professionals, and this is immediately noticeable.

  26. polish my skills


    Recommended! If you think building a real time app is difficult, join this course. This course helped me to polish my skills and overcome my weaknesses turning them into strengths. Truly the best course ever.

  27. interactive learning


    I used to be dependent on YouTube videos before joining this course. But when I enrolled in this course I realised the importance of having actual teachers and interactive learning. Here we had discussions that helped me understand the concepts better. The professors solved each and every doubt and query I had. It was worth joining this course.

  28. wonderful opportunity nullclass


    thank you for this wonderful opportunity nullclass. I truly loved this course and I'm glad to have enrolled in this course!!

  29. It was self paced


     I really liked this course very much. It was self paced and things were explained in a very simple manner.

  30. comprehend everything.


    i liked how everything in this course was explained using real world examples and how easily i could understand and comprehend everything. These are the best features of this app development course

  31. Good course


    It was a good course.

  32. Good


    Nice course

  33. AppLock-Java


    It fully Covered all the concepts @ how to Learn & Build Real Time App Like AppLock in Java.
    It was really useful and helpful.
    Thank you!!!🙏

  34. App lock project


    It was indeed wonderful learning something new during summer vacation. Thanks to NullClass and their team for this opportunity. It was great experience

  35. AppLock


    This entire summer was productive because this amazing project. The teaching pace was good and i learned about Java. This is really great project

  36. AppLock


    I completed this project and i was really happy about the entire process. The mentors were good and the video tutorials were indeed helpful. I really appreciate this platform for helping students gain experience

  37. Good course


    Good to be updated on the changes that have taken place. Top marks for the instructor.Overall the course is going to be very useful.

  38. Highly recommended


    This was my first time taking a course in this format and it far exceeded my expectations. The class is awesome! The instructor spoke very clear and was very knowledgeable and patient. Good curriculum.

  39. Really amazing course


    Overall I enjoyed the course. I liked that everything was straight forward. There never was any confusion on assignments, which is always a plus with online courses.

  40. Good mentor


    Trainer knowledge is excellent and with this course I got useful knowledge.

  41. Awesome applock designing course


    Very informative and gives more knowledge about the simple security to our usual apps .Very helpfull for a beginner to learn and work in security based apps

  42. Good course


    I was able to set my own timetable and submit assessments around my own commitments. Had it not been for the flexible nature of the course I would not been able complete my studies

  43. Good course


    I really enjoyed the online course. I thought it was well planned and layed out, easy for me to follow. The course was everything you said it would be, full of learning.

Courses > Learn to Build Real Time App Like AppLock - Java

Learn to Build Real Time App Like AppLock - Java

4.3( 44 REVIEWS )

Overview Having an android application such as Applock has perhaps become the necessity of every …