OfflineU

Download edtech courses for seamless offline mobile learning on the go.

Score: 7.7/10GermanyMedium BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Remote workers can't access or effectively use edtech courses on mobile devices during short breaks or travel due to poor mobile optimization.

Solution

Connects to edtech accounts via API/OAuth to download videos, notes into a lightweight mobile PWA with 2x speed, summaries, and auto-resume. Content auto-syncs when back online, optimized for low-data travel scenarios. Ideal for remote workers with spotty connections during commutes.

Target Audience

Remote workers enrolled in edtech courses who rely on mobile learning during daily commutes, short breaks, or frequent travel

Differentiator

True offline-first with smart compression and bandwidth-aware syncing, unlike native apps that buffer endlessly.

Brand Voice

friendly

Features

Edtech Integration

must-have12h

OAuth login for Udemy/Coursera/Skillshare downloads.

Offline Download

must-have18h

Batch download courses with compression for mobile storage.

PWA Player

must-have22h

Custom video/notes player with speed controls and highlights.

Auto-Sync Resume

must-have10h

Syncs progress and new content on reconnect.

Bandwidth Optimizer

must-have8h

Predicts and pauses downloads based on connection.

AI Summaries

nice-to-have9h

Quick text overviews for skim-reading.

Search Offline

nice-to-have7h

Full-text search across downloaded content.

Batch Scheduling

nice-to-have6h

Schedule downloads for off-peak hours.

Total Build Time: 92 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
storage_limit_gbintNo

Relationships:

  • one-to-many with integrations

integrations

ColumnTypeNullable
iduuidNo
user_iduuidNo
platformtextNo
access_tokentextNo

Relationships:

  • foreign key to users.id, one-to-many with courses

courses

ColumnTypeNullable
iduuidNo
integration_iduuidNo
downloaded_size_mbintYes
progress_percentintNo

Relationships:

  • foreign key to integrations.id

downloads

ColumnTypeNullable
iduuidNo
course_iduuidNo
statustextNo
completed_attimestampYes

Relationships:

  • foreign key to courses.id

API Endpoints

POST
/api/integrations

Connect edtech account

🔒 Auth Required
GET
/api/courses

List available/downloaded courses

🔒 Auth Required
POST
/api/downloads

Queue download

🔒 Auth Required
PUT
/api/progress/:courseId

Update progress

🔒 Auth Required
POST
/api/sync

Trigger sync

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui
Backend
Supabase Edge Functions
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
OAuth libsFFmpeg.wasm for compression

Build Timeline

Week 1: Auth and integrations

22h
  • Setup
  • OAuth flows

Week 2: Download engine

28h
  • Download API
  • Compression

Week 3: PWA player

30h
  • Offline UI
  • Video player

Week 4: Sync and optimizer

25h
  • Sync logic
  • Bandwidth detect

Week 5: Nice-to-haves + payments

20h
  • Summaries
  • Stripe

Week 6: Testing/deploy

18h
  • Offline tests
  • Launch

Week 7: Polish

12h
  • Search
  • Scheduling
Total Timeline: 7 weeks • 155 hours

Pricing Tiers

Free

$0/mo

No auto-sync

  • 1 platform
  • 2GB storage
  • 1 course offline

Pro

$25/mo
  • Unlimited platforms
  • 50GB
  • All courses
  • Auto-sync

Enterprise

$99/mo

10 users

  • All Pro
  • 500GB/team
  • Admin dashboard

Revenue Projections

MonthUsersConversionMRRARR
Month 1801.5%$30$360
Month 61,2003.5%$1,050$12,600

Unit Economics

$9
CAC
$280
LTV
5.5%
Churn
86%
Margin
LTV:CAC Ratio: 31.1xExcellent!

Landing Page Copy

Edtech Courses Offline, Anywhere You Roam

Download once, learn forever—no buffering on trains or planes for busy remote workers.

Feature Highlights

Seamless OAuth integrations
Smart offline compression
Auto-resume sync
2x speed player
Low-data mode

Social Proof (Placeholders)

"'No more train WiFi fails!' - Jordan L."
"'Udemy offline perfection.' - Emma S."
"'Saved my travel learning.' - Pat D."

First Three Customers

Share waitlist in r/Udemy and r/coursera; cold email 20 remote freelancers from Upwork mentioning mobile pains; free Pro for first reviewers.

Launch Channels

Product Huntr/indiehackersr/UdemyTwitter #RemoteWorkHacker News

SEO Keywords

offline edtech coursesdownload udemy mobilecoursera offline appedtech travel learningno wifi course player

Competitive Analysis

Udemy Mobile

udemy.com
Course purchase
Strength

Native downloads

Weakness

App-only, no multi-platform

Our Advantage

Cross-platform PWA + optimizer

Skillshare

skillshare.com
$32/mo
Strength

Offline videos

Weakness

Bulky app, slow sync

Our Advantage

Compression + bandwidth smarts

🏰 Moat Strategy

Network of user download patterns for predictive caching.

⏰ Why Now?

5G/spotty travel WiFi persistent issue, edtech shift to subscriptions demands better offline access.

Risks & Mitigation

technicalhigh severity

OAuth changes by platforms

Mitigation

Multi-provider + user export

executionmedium severity

Storage costs overrun

Mitigation

Tiered limits + compression

financiallow severity

High bandwidth bills

Mitigation

Edge caching on Vercel

Validation Roadmap

pre-build5 days

Landing + Typeform survey

Success: 30 emails

mvp21 days

Closed beta 15 users

Success: 80% usage offline

growth30 days

Affiliate edtech forums

Success: 500 signups

Pivot Options

  • Podcast downloader
  • YouTube course offline
  • Enterprise LMS offline

Quick Stats

Build Time
155h
Target MRR (6 mo)
$2,500
Market Size
$750.0M
Features
8
Database Tables
4
API Endpoints
5