Chris Athanas

I'm a Kotlin Multi-Platform (KMP) Developer Specializing in Android, iOS & Web Development

🔭 I’m currently working on KMP (Kotlin Multi-Platform) cross-platform iOS & Android projects & finishing my EE degree at Midlands Tech and University of South Carolina
📺 My YouTube channel : www.youtube.com/@chrisathanas
🌱 I’m exploring latest techniques using cross-platform Compose with KMP - check out my Fred's Roadtrip Storyteller project
📫 How to reach me: [email protected]
⚡ Fun fact: The first computer I programmed was a PDP-11 at the Boston Children's Museum in 1976
🤖 Check out the KMP Developers Group on Twitter: https://twitter.com/i/communities/1739883885658607808
🙂 Here's my famous programming course "How to Program From The Ground Up" on YouTube

LET ME HELP YOU WITH YOUR CROSS-PLATFORM KMP/CMP APP DEVELOPMENT

Interesting Android, iOS, Web & Cross-platform projects I have built:

Larger Projects

Fred's Roadtrip Storyteller - KMP cross-platform iOS/Android app that speaks historical markers as you travel.
Tasky - Android Native App - Lite version of Google Calendar to track daily agenda items. MVVM / Kotlin / CLEAN, over 150 stars on GitHub! UPDATED FOR KOTLIN 2
My Famous Free Programming Course: How to Program From the Ground Up YouTube Series - Click here for the follow-along live-code document

YouTube Series:
Adventure Driven Development™ - Click here for Design Guide in Google Docs

YouTube Series:
Cloud Cover USA 2 - Kotlin Multi-Platform App (KMP) for iOS, Android, Web & Desktop (Apple silicon)

YouTube Series:
Compose Tips Series on YouTube

YouTube Series:
Translator KMM - iOS and Android Cross-platform foreign language translator app written with KMM in Kotlin
Guess-A-Sketch - Multiplayer Real-time Sketch Game using websockets and Ktor back end server, Speech recognition
Bike Tracking - 🚲 Bike Ride tracking app using MVVM, fragments, GPS tracking service, Room database, custom TypeConverters
Cats vs. Dogs - Cats versus Dogs for world domination. Realtime 2-player game built with websockets
Hyperlocal Weather - Hyperlocal Weather tracking application using Compose and Open-meteo Api
Slang-Dictionary - American slang and regular dictionary based on dictionaryapi.dev, Pronounces the words and gives multiple definitions
Calorie Track - Multi-module CLEAN architecture app to track calories using Open Food Api

Math Series:

Math Quiz/Drill/Visualizations
Pre-Calculus & Calculus I Flashcards Mini-App
Calculus Interactive Explorer: Infinitesimals vs Limits
Calculus I Bounce Simulation explorer for Derivative graphs of position, velocity & acceleration
Calculus I Drill App & .tns documents for Test 2 for Cengage WebAssign, Larson textbook.
Trigonometry Interactive Visualization based on "You Can Rebuild All of Trig From This One Circle" video
Calculator Programs & Apps
- Pre-Calculus Calculator Tools for TI-NSpire / TI-84 Evo / TI-84 CE Plus
  - https://github.com/realityexpander/TI-Pre-calculus-Tools-TI-84_CE_EVO_TI-NSpire_CX_II
- EXPAND and FACTOR polynomials for TI-84 Evo & CE
  - https://github.com/realityexpander/TI-Factor-Expand-Polynomials-Symbolically-for-TI-84-Evo-and-CE
- Expand() and factor() for TI-NSpire CX II - Non-CAS
  - https://github.com/realityexpander/TI-NSpire-Expand-Factor-Polynomials-Calculus-I
- Partial Fraction Decomposer for TI-Nspire CX II - Non-CAS
  - https://github.com/realityexpander/TI-NSpire-Partial-Fraction-Decomposer-Calculus-I
- Integrate and Derivate Symbolically for TI-NSpire CX II - Non-CAS
  - https://github.com/realityexpander/TI-NSpire-Calculus-I-Equation-Processor
- Synthetic Division for TI-84 Evo & Plus CE
- List File Format Converter for TI-84 Plus CE (.xlst) <> Evo (.xlst2) (
  - The Cemetech site doesn't seem to work anymore, and this is a single page app.
  - You can run locally and you can examine the source code, all written in standard Javascript.

Electrical Engineering Series:

Electrical Engineering · ECE-101 Drill Quiz for Test 1

Science Series

Chemistry Quiz Apps
- CMH-110 Significant Figures Basic & Advanced Quiz applets
- CMH-110 Nomenclature

Smaller but still interesting

Morse Code Glyph Trainer & Drill
Complex Compose UI
Pixabay Image Search - Pixabay Image Search app using MVVM, Compose, Infinite Scroll, Offline cache using Room Database, Image preview using AndroidView of PhotoView
Ktor Realtime Chat - Realtime Chat App build with Ktor backend, MVVM, Compose, MongoDB Database, WebSockets, Ktor Client
Spotify Clone - Music streaming App & service using a Firebase back-end and the Exoplayer library
Zombie Outbreak Locator - ☣️ Convenient way to track Zombie Outbreaks worldwide using Compose Google Maps Api
Tesla App - Clone of the Tesla Roadster site as an Android App with WebView, HTML5, Bootstrap
Stock Market Info - Gives lots of information about stocks, uses AlphaAdvanatage api, Compose custom graphs, CLEAN and SOLID design
Ktor Notes App - Fully implemented MVVM Note App with Accounts, Authentication, Encryption and Ktor Server Backend
Catulator - 😸 Cat calculator app built with MVVM/MVI and Compose, using scientifikitten cat-zero notation
KMM Notes App - KMM (Kotlin Multiplaform Mobile) example app for taking notes. Deployable to iOS and Android
Video Player/Recorder - Video player and recording using Exoplayer. Implements Compose, Exoplayer, Hilt
Video Conferencing - Video Conferencing app using Compose and Agora video conferencing library (requires key generation for 24 hour access)
Shopping Notes - Shopping list app with MVVM
Crypto Info - Gives lots of information about the top coins, uses coinpaprika api, CLEAN and SOLID design
MVVM Todo - Simple Todo app showcasing MVVM CLEAN and SOLID practices
Charlly Finely Life Coach - Charlly Finely - AI Motivational Life Coach will quickly solve all your problems!