Avenor 3.0

Plan it. Focus. Remember it. A free, private study app for students in 8th grade through college, on iPhone, Android and the web. Built for the 2026 Congressional App Challenge.

Branch / file	What's inside	Build with
ios branch	SwiftUI app (iOS 27+)	Xcode: open Avenor for iOS.xcodeproj and press ⌘R
android branch	Kotlin + Jetpack Compose app (Android 8+)	Android Studio: open the project, Sync, then Run. ./gradlew test runs the engine tests.
site branch	Landing page + working in-browser demo	Open index.html (no build step)
research branch	Research paper, survey screenshot, transcribed survey (survey_transcribed.csv), SURVEY_FINDINGS.md	—
DESIGN_SYSTEM.md	Colors, type, sizes, components and behavior rules shared by all three platforms	—
AI_DISCLOSURE.md	What AI was used for, and who wrote each part	—

What changed in 3.0

• Same app everywhere. iOS, Android and the web demo share one design system, the same four tabs (Today, Plan, Focus, Review) and the same engine: ranking, quick-add parsing, spaced repetition and kind streaks.
• Survey-driven features:
  • "Just 5 min" starter. 39% of students said they delay or distract themselves when stressed.
  • 60-second breathing reset on breaks. About 1 in 4 asked for something calming.
  • Study Mode nudges students back if they leave, and break tips steer away from short videos (45% game in their free time).
• Research-driven guardrail. The paper found AI chatbots can miss signs of crisis, so Avenor has no AI counselor. It links to the 988 Suicide & Crisis Lifeline and encourages students to talk to trusted adults.
• Data carries over. Android 3.0 imports tasks, classes and events from version 01. iOS 3.0 reads 2.0 data.

Verification status

• Website: tested in Chromium at desktop and phone widths. The full demo flow works with no console errors and no horizontal scroll.
• Android: the engine (Engine.kt, Models.kt) was compiled with Kotlin 2.0 and its unit tests passed. The store and focus engine were type-checked against API stubs. The Compose UI has not been compiled yet (no Android SDK was available), so build it once in Android Studio and fix any diagnostics.
• iOS: written against iOS 17+ SwiftUI APIs, but not compiled yet (no Xcode was available). Build once in Xcode and fix any diagnostics.

Privacy and cost

No accounts, servers, analytics or ads. Everything is stored and scheduled on the device. The Android app requests no INTERNET permission. The cost per user is $0. The only fixed cost is store developer fees (Apple $99/yr, which can be waived for qualifying schools or nonprofits, and Google Play's one-time registration fee).