--- title: "Promise Amadi (@promise) | Hashnode" description: "Expert Android Developer || Certified Flutter Developer || Technical Writer || Tech Speaker || Digital Skills Educator" url: "https://hashnode.com/@promise" --- @promise # Promise Amadi @promise · Nigeria · Joined July 2019 Expert Android Developer || Certified Flutter Developer || Technical Writer || Tech Speaker || Digital Skills Educator ### [Improve App Downloads By Integrating AppsFlyer In Your Flutter App](https://promise.hashnode.dev/improve-app-downloads-by-integrating-appsflyer-in-your-flutter-app?utm_source=hashnode&utm_medium=feed) In today’s competitive mobile app landscape, app store downloads and user engagement are the cornerstones of mobile app success. Integrating AppsFlyer into your Flutter app empowers you with a comprehensive toolkit to boost your app’s visibility and ... 4 min read · [promise.hashnode.dev](https://promise.hashnode.dev/improve-app-downloads-by-integrating-appsflyer-in-your-flutter-app?utm_source=hashnode&utm_medium=feed) [Nov 23, 2023](https://hashnode.com/posts/improve-app-downloads-by-integrating-appsflyer-in-your-flutter-app/655f105ba45c28871c69086f) ### [How to Build a Photo Editing App in 10 minutes using Flutter and IMG.LY](https://promise.hashnode.dev/how-to-build-a-photo-editing-app-in-10-minutes-using-flutter-and-imgly?utm_source=hashnode&utm_medium=feed) Hello everyone, in today's article, you will learn how to build a photo editing app with Flutter and Img.ly. But, before I dive into the technical side of this tutorial, I will like to give a brief explanation about IMG.LY. What is Img.ly? IMG.LY is... 3 min read · [promise.hashnode.dev](https://promise.hashnode.dev/how-to-build-a-photo-editing-app-in-10-minutes-using-flutter-and-imgly?utm_source=hashnode&utm_medium=feed) [3](https://hashnode.com/posts/how-to-build-a-photo-editing-app-in-10-minutes-using-flutter-and-imgly/6153ef2d9c8bfd08f5ba81fc) [Sep 29, 2021](https://hashnode.com/posts/how-to-build-a-photo-editing-app-in-10-minutes-using-flutter-and-imgly/6153ef2d9c8bfd08f5ba81fc) ### [A quick guide on how to authenticate users with the at\_onboarding plugin](https://promise.hashnode.dev/a-quick-guide-on-how-to-authenticate-users-with-the-atonboarding-plugin?utm_source=hashnode&utm_medium=feed) In this article, you are going to learn how to authenticate users with the at\_onboarding Flutter plugin. 4 min read · [promise.hashnode.dev](https://promise.hashnode.dev/a-quick-guide-on-how-to-authenticate-users-with-the-atonboarding-plugin?utm_source=hashnode&utm_medium=feed) [Aug 18, 2021](https://hashnode.com/posts/a-quick-guide-on-how-to-authenticate-users-with-the-atonboarding-plugin/611f5946e404793819ca6a01) ### [Easiest Steps On How To Save Data To Firebase Without Adding google-services.json File In Your Flutter App](https://promise.hashnode.dev/easiest-steps-on-how-to-save-data-to-firebase-without-adding-google-servicesjson-file-in-your-flutter-app?utm_source=hashnode&utm_medium=feed) Often at times, the traditional way of integrating Firebase into your Flutter project is by downloading and adding the google-services.json file in your Flutter project. But, in this article, you will learn how to store data to Firebase Cloud Firesto... 5 min read · [promise.hashnode.dev](https://promise.hashnode.dev/easiest-steps-on-how-to-save-data-to-firebase-without-adding-google-servicesjson-file-in-your-flutter-app?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/easiest-steps-on-how-to-save-data-to-firebase-without-adding-google-servicesjson-file-in-your-flutter-app/60891b662968da527c85e95f) [Apr 28, 2021](https://hashnode.com/posts/easiest-steps-on-how-to-save-data-to-firebase-without-adding-google-servicesjson-file-in-your-flutter-app/60891b662968da527c85e95f) ### [Easiest Steps To Build A Face Filter App With Flutter and Deep AR](https://promise.hashnode.dev/easiest-steps-to-build-a-face-filter-app-with-flutter-and-deep-ar?utm_source=hashnode&utm_medium=feed) Hello everyone, I'm excited to be sharing this article with you all. At the end of this article, you will learn how to build a Face Filter App from scratch using Flutter and Deep AR. So let start. What is DeepAR? DeepAR is a web platform that provide... 7 min read · [promise.hashnode.dev](https://promise.hashnode.dev/easiest-steps-to-build-a-face-filter-app-with-flutter-and-deep-ar?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/easiest-steps-to-build-a-face-filter-app-with-flutter-and-deep-ar/60053df57b30c23b714aac01) [Jan 18, 2021](https://hashnode.com/posts/easiest-steps-to-build-a-face-filter-app-with-flutter-and-deep-ar/60053df57b30c23b714aac01)