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Presentation 2 — Split It | Milestone 2

Course: [Course Name] Team: [Team Name] Date: [Date] Duration: ~10 minutes max

Slide 1 — Title (30 sec)

Split It — Real-Time Bill Splitting App

"Scan a receipt, split the bill live with your group."

  • Team members: [Name 1], [Name 2], [Name 3]
  • Course, section, date

Slide 2 — Update of Progress (1.5 min)

Review of requirements / user stories against current build.

Feature Status
User authentication (sign up / sign in / sign out) ✅ Complete
Receipt scanning + OCR ✅ Complete
AI-powered receipt extraction (Gemini) ✅ Complete
Editable receipt review screen ✅ Complete
Save receipt to Supabase database ✅ Complete
Split Live Sessions (real-time multi-user) ✅ Complete
Item claiming with real-time sync ✅ Complete
Per-user bill summary with tax/tip proportion ✅ Complete
Session joining via 6-char code + QR code ✅ Complete
[Planned feature — e.g. payment integration] 🔲 Planned
[Planned feature] 🔲 Planned

Slide 3 — Project Walk-Through (3 min)

Live demo or screenshots of the full user flow:

  1. Sign In → lands on Scanner (home) screen
  2. Take photo or pick from gallery → process receipt
  3. Review & Edit screen → correct OCR mistakes, adjust items/totals, save
  4. "Start Split Session" prompt → session lobby opens with join code + QR code
  5. Friend joins by entering the 6-char code on their home screen → appears in lobby in real time
  6. Host taps "Start Splitting" → both devices navigate to the Claim screen simultaneously
  7. Tap to claim items → claims sync in real time across all devices; shared items show split cost
  8. Host taps "Finish & See Totals" → all users navigate to their personal Summary screen
  9. Summary screen shows each user's claimed items, share of unclaimed items, proportional tax/tip, and grand total

Planned Features Not Yet Implemented

  • [e.g. Venmo / PayPal payment link generation from summary screen]
  • [e.g. Receipt history / past sessions view]
  • [e.g. Push notifications when host starts the session]
  • [Add your own]

Slide 4 — Architecture Overview (30 sec)

Layer Technology
Frontend Expo (React Native) + Expo Router
Backend / Database Supabase (Postgres + Auth + Row-Level Security)
Real-Time Sync Supabase Realtime (WebSocket subscriptions)
AI Receipt Parsing Google Gemini API
OCR [Your OCR service]
Build / Distribution EAS Build (Android APK for beta testing)

Key database tables: receipts, sessions, session_participants, item_claims

Slide 5 — Test Plan (1.5 min)

Functional Test Cases

# Test Case Expected Result Status
1 Sign up with valid email Account created, redirected to app ✅
2 Sign up with mismatched passwords Validation error shown ✅
3 Sign up with existing email Appropriate error message shown ✅
4 Sign in with correct credentials Session established, app loads ✅
5 Sign out Session cleared, redirected to sign-in ✅
6 Scan a receipt image Structured data extracted and pre-filled ✅
7 Edit items on review screen Changes reflected in saved receipt ✅
8 Save receipt Stored in Supabase, receipt ID returned ✅
9 Start a split session Session row created, lobby shown with join code ✅
10 Second user joins by 6-char code Appears in lobby for all participants in real time ✅
11 User claims an item Claim syncs to all devices instantly ✅
12 User unclaims an item Claim removed from all devices instantly ✅
13 Two users claim the same item Each user's summary shows lineTotal ÷ 2 ✅
14 Item left unclaimed Cost split evenly among all participants ✅
15 Host taps Finish All devices navigate to individual summary ✅
16 Summary tax/tip calculation Each user's share is proportional to their item subtotal ✅
17 Enter invalid join code "Not Found" error alert ✅
18 Join session that is already finished Session not found (filtered by status) ✅

User Testing

  • [Describe any real-user testing done — e.g. tested full session flow with two Android devices using preview APK build]
  • [Planned: broader beta distribution via EAS Android build link]

Slide 6 — Issues & Strategies (1.5 min)

Issue Strategy / Resolution
Node.js version mismatch (v20.18.3 vs required ≥20.19.4) Warnings only — does not affect functionality; will upgrade Node before production
EAS project owner mismatch between app.json fields Resolved by re-running eas init to re-link project to correct account
No Apple Developer account for iOS distribution Pivoted to Android APK for friend/beta testing; iOS support deferred
QR code component requires native dev build Installed react-native-svg + react-native-qrcode-svg; new dev build required before QR renders on device
Realtime DELETE events need old record in payload Enabled REPLICA IDENTITY FULL on item_claims table in Supabase
[Any other issue you encountered] [How you resolved or plan to resolve it]

Slide 7 — Individual Responsibilities (1.5 min)

Each team member presents their own section.

[Team Member 1 — Aaron]

Completed:

  • Receipt scanning pipeline (OCR + Google Gemini integration)
  • Editable receipt review screen
  • Save receipt to Supabase with ID return
  • Split Live Sessions full architecture (Supabase schema, RLS policies, Realtime)
  • Session lobby, claim, summary, and deep-link join screens
  • Home screen "Join a Session" UI with 6-char code input

Remaining tasks:

  • [e.g. QR code deep-link testing once new dev build is created]
  • [e.g. Any remaining planned features]

[Team Member 2 — Name]

Completed:

  • [Their tasks]

Remaining tasks:

  • [Their plan]

[Team Member 3 — Name] (if applicable)

Completed:

  • [Their tasks]

Remaining tasks:

  • [Their plan]

Slide 8 — What's Next (30 sec)

  • Complete remaining planned features: [list them]
  • Expand user testing with Android APK distribution
  • Obtain Apple Developer account for iOS distribution
  • [Any other next steps]

Slide 9 — Q&A

"Thank you — any questions?"

Submission Checklist

  • PDF of slides exported
  • YouTube video uploaded (under 10 min)
  • All cameras on during recording
  • Business casual attire
  • Each team member presents their own section
  • One submission per group