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cognitayohan

@cognitayohan

Joined June 1st, 2026

  • 71Devlogs
  • 10Projects
  • 16Ships
  • 240Votes
Student-Athlete-Coder-Musician at MHS, HBHS, and GWC.
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1h 55m 25s logged

Cognita Study App Devlog 7 - Started to work on Classroom logic

After finishing up personal deck, public decks, and user logics, I decided to move on to the classroom game feature. Basically it is kinda like blooket where you can host live game with everyone in the class. Right now it is a work in progress with some errors, but the progress is looking good so far!

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1h 40m 5s logged

Cognita Study App Devlog 6 - Fixed Users Issue

Due to the recent firebase oauth login setup, some errors were caused by the paywalls from firebase. For some reason, when certain users signup at a certain time, the app doesn’t record them as users in the database and doesn’t save their preferences. I quickly recovered and fix the issue though, so all errors should be gone by now! I did this by building a sync button in my devdashboard to make sure to sync users’ data. The trick was setting the backup users as “admin” but then restricting what “admin” meant- because actual admins require another email verification, giving the “admin” status only bypasses the firebase walls rather than giving free admin statuses to other users. In the meantime, I also edited the firebase API key for oauth that was outdated.

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19m 10s logged

Cognita Study App Devlog 5 - Cloned New Repo for Public Viewing.

Unfortunately, the original Repo of the app has old commits that include accidentally leaked API keys, so I had to create a clone of the Repo without those commits. However, this also deleted all of my past history. I added my commit history that was erased onto the README for public viewing.

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50m 50s logged

Cognita Study App Devlog 4 - Updated 404 error page as well as Documentation on security practices!

In order to protect the app and list out security practices, I built a new “Documentation” page that clearly lists the app’s guidelines. I also listed the official domains of the app to protect users from fake sites. In addition, I also updated the 404 page to be more lively and fun!

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1h 26m 31s logged

Cognita Study App Devlog 3 - Continuing the UI update as well as updating features for usability

I figured that my app was cluttered- especially my home page. So I decided to edit my home page to include only the core features up front with an easy access search bar so users can easily find things around the app. I also designed my own “ad” to place on the sign in page- it is lowkey nice looking tbh.

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1h 12m 47s logged

Cognita Study App Devlog 2 - UI UPDATE!

Cognita Study was a project I built prior to the Stardance Challenge. For Devlog 2, I have updated a few more features adding on from Devlog 1. I updated the UI for the signin page as well as the home page to ‘match’ leading study app designs (Quizlet, etc.). I also fixed some broken database logic for logins as well as Profile pictures and bios.

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4h 42m 33s logged

Cognita Study App Devlog 1 - FULL APP UPDATE!

Cognita Study was a project I built prior to the Stardance Challenge, so at that time my app originally was a simple study app capable of a few features such as flashcards view, quiz, etc before Stardance started. By now I have completely changed the UI, connected to Firebase Database for user storage, added Gamification modes, Advanced Tools for each subject, AP Exam Prep, State Test prep, and added my own Custom APIs to support all AI tools within my app. Unfortunately, that also meant around 30 hours of coding wasn’t logged from before..


Well, nevertheless, I continued to build and update my app to include these new helpful features. There are 45+ different features and counting now! I made this project to help my fellow students from my school originally, but seeing it’s success I really wanted to push my app to another scale.


What was really hard for me while updating the app included debugging Firebase Database storing data framework and also connecting my app to a API-chain (where I have multiple AI models support each other).


Now that I have successfully completed those changes, I just have one more error to fix for now- the loading times are too long. I believe the error is due to the problem where the app tries to load everything at once- I’ll probably just make it load things in a step flow.


Finally, for the project, I really hope you guys would try it out! It has really helped me and my classmates and I’m sure it could help you all too!


Live Website: https://cognitastudy.me
Instagram: https://www.instagram.com/cognita.study


Lmk what else I should add/update in the future!

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Ship

Ship #2: After reviewing community requests, I added a few more features for the app to improve its usability! The original features include you can update schedules, log in to your account, and all physical activity monitors follow CDC physical activity guidelines. This app supports both UN SDG 3 and 10 in the UN Sustainability Goals. The new features added since the last ship includes Android offline APK artifact, Emergency contact/911 easy calling during emergency, better scrolling logic, fixed dark mode, and images to showcase exercises better (picture showcases this feature). Let me know if there is anything else to add in the future! Thank you for reading this and your support on this project🙏!

  • 7 devlogs
  • 3h
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29m 1s logged

Devlog 9: Updated scrolling features for better UI and also updated font size so mobile view can be fixed as well.

In addition, I also added new exercises and images that correspond to the exercises so users can understand how the exercises are performed more accurately with no guessing!

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Ship

Ship #1: Live Asteroid Sim is ready for its very first ship! This app is an interactive 3D simulator displaying real-time near-Earth asteroids from NASA NeoWs API with orbits, size, speed, and approach vectors. It utilizes the live API to display real data and simulation of asteroids and their threat to the Earth. The app also includes simulators of impact damage as well as DART (Planetary Defense) for protecting the Earth from incoming asteroids.

  • 4 devlogs
  • 3h
  • 7.44x multiplier
  • 20 Stardust
Try project → See source code →
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48m 7s logged

Live Asteroid 3D simulator Devlog 3

Two new features have been added to the simulator! Now you can simulate protecting the earth and also viewing the impact on the Earth.

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30m 6s logged

Devlog 7: Added new features for elderly safety!

I added enhanced emergency modal contacts, with automatic-fillout on SMS/CALL for calling 911 on mobile devices upon the press of a button. Now the elderly can also add their own contacts for calling automatically. Lastly, one more integration included adding pdf export for sharing with doctors about daily routines.

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54m 5s logged

Live Asteroid 3D simulator Devlog 2

I added more safety checks as well as new Android build files for Github Artifact runs! I also fixed broken UI aspects by editing text and orientation of objects.

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24m 24s logged

Devlog 6: I added new android files for offline access!

This gives users the ability to have it on the go on Android devices, even if they are offline! I built this using Github Artifacts with android-build.yml in .github/workflows.

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Ship

Ship #6: After reviewing community requests, I have added each countries’ respective channels to match each location properly (to fix the previous issue of incorrect mapping!). I also built Android files so that Github could run the Artifact process for building an APK version of the app! This gives users the option to view on the web or on their Android devices. Lastly, I integrated a system where you can request for adding legal channels where it would go into a system of review. Thank you all for your support on this project! Feel free to give feedback on anything else to improve in the future!

  • 8 devlogs
  • 8h
  • 17.11x multiplier
  • 139 Stardust
Try project → See source code →
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30m 28s logged

World Channels Devlog 30

To upgrade the app, I continued to verify streams and the UI. I also made a new artifact run for Github- building an Android file! Now you can download the APK version of the app for local viewing rather than on the web.

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1h 12m 6s logged

Soccer Symphony Devlog 1

Made the initial build of the project, downloaded the Yolov8n ONNX file, and connected music tempo with the speed of the tracking from inputted videos! The application currently works, but more updates are to come to increase the accuracy and fix music notes!

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29m 52s logged

World Channels Devlog 29

I added the main streaming services from all 195 countries + 2 territories, increasing the total amount of streams from 8,000 –> 11,700 streams! I also changed the limit from 10,000 to 15,000 for vercel stability on the deployment.

For those who haven’t seen it yet, check out the app at: https://worldchannels.vercel.app !

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