As an Android Developer I know about the challenges you will face when developing software for mobile devices. Therefore I can say with certainty that this training covers all the essentials you will need to start working on your iOS app. In addition you will also learn how to avoid common pitfalls as well as evaluating your solutions and analyze your software regarding various issues like performance or memory consumption. After taking this course I feel confident starting to contribute to the iOS development in our company.

- Tim Nowaczynski (Mobile.de), Germany

I had high expectations going in and the class exceeded them… I’m leaving with a much greater understanding of the iOS frameworks, the delegate pattern, and a better appreciation of Apple’s documentation. The full day of Networking & Core Data was unexpected, but invaluable hands on experience. Learning your approach to designing the data model for Core Data and your instruction on concurrency/GCD queues has made me less intimidated moving forward on these complex topics.

The facility, provided lunches, and workbook were all great. I also appreciated the homework assignments!

- Tom Edgar, Sw Eng, Texas

I attended the class with absolute zero iOS development experience. Now, only few days after the class, I’m developing my first apps with confidence. All thanks to Geppy’s unique way of teaching and his deep knowledge. The class gave me knowledge from the basics to the more advanced topics in 5 days. That’s incredible. It would had taken forever to learn all these topics by myself. I would definitely recommend this class to everybody who wants to learn iOS development.

- Steffen Maabjerg, Sw Eng (Primesoft), Denmark

This is by far the best training I had in years. Geppy was very thorough and methodological in walking us from basic to complex pieces of iOS. At the end of this training, all my engineers walked out with confidence.

- Mamallan Uthaman, Sw Eng Manager (Salesforce), California

I’m very skeptical about any trainings and always do professional development on my own. Geppy really impressed me by his deep knowledge and the course intensity. He answered several tough questions and covered important topics with all necessary details. I highly recommend Geppy and his team.

– Olga Khylkouskaya, Sr. Sw Eng (Salesforce), California

As a senior engineer at Oracle, I have attended many enterprise and apps development training classes. Invasivecode's training was unlike any I have attended before - at the end of my training I was left with a solid exposure to iOS, Swift and Objective-C, many starter apps that we built from scratch in class and 3 months of tech support, which is simply awesome. This is one of those classes that's great for intermediate and beginner iOS developers alike. Geppy is an iOS expert and he was glad to share his expertise, experience and know hows about the intricacies of iOS and Swift. I'd recommend this class to anyone looking to get into iOS development!

- Ackshaey Sigh, Sr. Applications Eng (Oracle), California

If you would like to truly understand the nuts and bolts of Objective-C and Swift programming languages and learn how to design a scalable iOS application, you have to take iOS classes taught by Geppy. I have taken 3 specialized iOS training classes from him and as a result, I have a much deeper knowledge of Core Data, Core Animation, UI Design, and Instruments. iNVASIVECODE iOS training classes are not merely listening to abstract theories, but actually hands on. Geppy answered many Objective-C and Swift questions that we students had and was very patient with our learning. Above all, I am very pleased with the classes and will continue to take more other classes from him.

- Wuthichai “Woody” Lee, PayPal, California

Geppy is an excellent instructor with extensive knowledge of the iOS SDK. The iOS course was very helpful in learning iOS app development using the iOS SDK. Prior knowledge of OOP concepts and Objective-C is needed for effective learning from this class.

- Swati Das, Sr. Integration Engineer (PayPal), California

The instructors are experts in their field and the iOS training provided excellent coverage of both Objective-C and iOS programming fundamentals. It was very hands-on and gave me enough knowledge to continue learning on my own. Thank you Geppy and Eva!

- Dennis Natochy, Senior Manager (PayPal), California

This is the best programming class I have ever taken. Geppy is very experienced in iOS development and has managed to transfer his knowledge to us in a very interesting and organized way. The post-training assignment is more work for him, but extremely beneficial to the trainees. Working on the assignment reinforced tremendously what I learned in the class. Now I’m definitely more confident in my iOS programming capability.

- Yifan Liu, Sw Eng (PayPal), California

The iOS training was just outstanding. I learned so much.

- Adam Wolf, (Freelancer) Washington 

Awesome. Bravo. Very helpful, willing to take time to answer questions and make sure concepts are grasped. Willingness to help after the course is a huge plus over all other iOS training companies.

- Jon Grintz, Sr. Sw Eng. (Gracenote), California

Great, intensive iOS training. Geppy is a very knowledgeable and patient instructor. If your goal is to learn what is possible, and how to develop iOS apps as quickly as possible, and you are willing to work hard, this is the class for you.

- Glenna Mayo, Sr. Sw Eng (Hightail), California

This iOS training is organized to teach the big, fundamental concepts through the use of these wide ranging topics. Giving you both a solid foundation in over arching concepts and practical knowledge on many parts of the SDK, both common ones as well as advanced.

- Brian Young (Freelancer), California

When it comes to iOS development, Geppy is the man. His iOS training course is very intense but totally worth it - highly recommended. 

- R. M. Menon (Bucksprout), California

Talented people teaching valuable iOS training for developing relevant applications.

- Joseph Adelaide, Sr. Sw Eng (NXP), France

My expectations about this iOS training class were really high. I can say they exceeded them! The teacher makes it really easy to understand developing for iOS. I came to the class with knowledge of iOS development, but thanks to the teaching methodology and the practice during the class, I got to an advanced level following the direction of the teacher. Additionally, the class is really personal, since the number of attendees is smaller in respect to other classes and you can learn more of what you need.

- Juan Manuel Altamirano (Telefonica), Spain

As a developer with experience in web technologies, iNVASIVECODE’s iOS training was exactly what I needed to kickstart my iOS development path. Geppy’s experience and knowledge of Swift and iOS is incredible. The pacing of the class was excellent and discussions were balanced perfectly with practical coding exercises. Most importantly, the course provided me with the foundation necessary to continue learning iOS development. Both Geppy and Eva go out of their way to make the experience as smooth as possible, and I would absolutely recommend this training for any developer who wants to learn iOS development!

– Luke Holoubek (3D Robotics), California

I wish I had taken this course years ago. Geppy was an excellent instructor and had an answer for every one of my iOS/Swift questions. What was even more amazing is when the answer was going to be too extensive to answer during class, he already had an article on his blog covering it in detail! I would highly recommend this class to anyone seeking to get into iOS mobile development!!

- Charles Taylor, Technical Manager (CoStar), California

I learned a lot in just few days. I’m very much looking forward to doing more iOS development. Also, thanks for showing us how to use the Xcode debugging tools to troubleshoot issues. This will definitely help as we ramp up with iOS development.

- Cliff Fajardo, Software Eng (Genomic Health), California

Geppy is very knowledgeable and has as unique style of teaching. The training was really good and intensive as described. I have three years of iOS development experience and still learned lot of new things in the training. I would definitely recommend for anyone who wants to learn iOS.

- Sanjay Patel, Sw Eng (Nemours Children's Hospital), Florida

This iOS training was excellent in a number of ways. Firstly, iNVASIVECODE provided two booklets: one with the slides covered in class, and another one with detailed documentation provided in the slides. I liked this approach because I could get a high-level gist as to what is going on in the first booklet, and then zoom into the details in the second booklet. Secondly, it was a hands-on session where we developed mini-applications which utilized a variety of iOS frameworks. Thirdly, the trainers are subject matter experts in iOS programming, and comprehensively answered all of our questions. They also showed us some of the excellent applications they developed for their clients.

– Eyor Alemayehu, Sw Eng (PayPal), California

Geppy is a top notch instructor, an iOS virtuoso who selflessly shares his talent with emerging developers.

- Ted Hogan, Sr Sw Eng (kCura), Illinois

Geppy knows iOS inside out. I am a Designer who has only done a small amount of programming before, and I was still able to understand the concepts as Geppy explains things thoroughly. I also enjoyed help and additional explanations from Eva. The class was really intense, and after the 5 days I have a good understanding of what I can do, and how I should do it.

– Ingrid Elise, UX Designer, California

If you want a good understanding and a kick start of iOS, this is the course for you.  Geppy is a great teacher and knows iOS inside out.  I am not sure there is something else out there that gets close to this.  It's intensive for sure so be ready for it!  I would recommend the class to anyone that is serious to learn iOS.

- Frederic Regis, Sr. Sw Eng (Time Warner Cable), Colorado

This iOS training helped me to pick up Objective-C and get to know iOS app development faster.

- Jia Feng, Sw Eng. (Tapjoy), California

Geppy and Eva are awesome. They are very knowledgable in what they teach, very nice and patient to answer all of our questions.  The iOS training courses cover theories and a lot of real codings, and the materials are very well prepared, covering a broad range of topics while also great in details.  Looking forward to learning more in the Debugging & Performance Analysis session.

- Peter Pan, Sw Eng (PayPal), California

Geppy was very knowledgeable on the iOS platform and development aspects. I came to the iOS training with a less than qualified background in object-oriented and Objective-C concepts. Geppy worked with me to understand the basic principles, and then gave me the tools I needed to assist with my learning of these basic concepts, and still set the same goals for me as the rest of the class.

- Nick Cobb (FedEx Services), California

The knowledge I gained, both about iOS app development and Xcode environment, is invaluable. Especially the tricks and tips and resources mentioned during the course were great additions to my knowledge.

- Muhammad Fahied (Intermedia), Oslo, Norway

Whereas Apple documentation is very well done, this iOS training really speeds up the learning curve of iPhone development. With theoretical presentations, labs and tips from a senior developer, the training gives all the basics to quickly start a real project from scratch.

- Arnaud Kerckhoeve (NXP), France

This iOS training was a great first step into iPhone development. I came away with a solid foundation for building quality applications!

- Peter Austin (Apocope), France

I was highly impressed by the quality of this iOS course, the materials provided, the preparation, and the availability of the staff. Immediately after the course, I was on my way to making some iPhone apps. When I got stuck along the way, iNVASIVECODE always provided the necessary help to keep me going. I would highly recommend this training to anyone with experience in OOP and basic knowledge of programming concepts.

 - Nick Joanneum (Communicko), France

If you are looking for an iOS training, this is a good investment. Geppy is a great teacher, has the knowledge and knows exactly how to transmit it.

- Rubén Bernal (Atipic Software), Spain

The iNVASIVECODE Team knows its business, in-depth iOS knowledge pouring out during the week-long course, sharp, complete and to the point answers to popping questions from different playing fields and expertise. The best iOS training so far. I've grown firm confidence to progress in serious iOS development. Highly recommended.

- Romano Finetti (Ministry of Defence), The Netherlands

I really enjoyed the course. It covered all of the aspects to develop iPhone applications. The course material was really good, so after the one week training I could go back to read, and get short examples of almost every part of the SDK. I recommend anyone who is interested in developing iOS applications to take this class.

- Danjel Nyberg (Bosch and Siemens Home Appliances Group), Sweden

This iOS training is very interesting and very complete. I am able to develop my first application very quickly now.

- Emilien Vuillaume (Netinfluence), Switzerland