Media & Content · Est. $8k – $10k
Matter

Read-It-Later, Reimagined

Coralsoft designed, built and shipped this product for the client.

MobileReact NativeExpo SDK 54Expo Router
Matter — product interface
Matter — product interface
The situation

What was in place before we started.

Matter is a modern read-later app that saves articles, threads, PDFs, newsletters — even YouTube and podcasts, auto-transcribed into time-synced text — into one distraction-free library. A 3× Apple “App of the Day”, it is highly rated on the App Store.

Matter is a modern read-later app that saves articles, threads, PDFs, newsletters — even YouTube and podcasts, auto-transcribed into time-synced text — into one distraction-free library. A 3× Apple “App of the Day”, it is highly rated on the App Store.

Estimated Engagement
2 months
Team
4 people
Estimated Budget
$8k – $10k
Year
2026
Used by
Avid readers · Students · Professionals · Researchers
Saves
Articles, threads, PDFs, newsletters, YouTube & podcasts
Coverage
Auto-transcribed audio/video, tags, full-text search
Platforms
iOS & Web only — no Android app
Estimated stack
React NativeExpo SDK 54Expo RouterTypeScriptNativeWindTanStack QueryReact Hook Form + ZodVercel AI SDKpgvectorSupabase RealtimeCloudflare R2ffmpeg pipeline
Delivery story

Matter: making content discovery and creation feel effortless

01

Challenge

Matter is a modern read-later app that saves articles, threads, PDFs, newsletters — even YouTube and podcasts, auto-transcribed into time-synced text — into one distraction-free library. The main delivery challenge was to give users dense content and media tools that still feel immediate on everyday devices, while keeping Save, Inbox, and Read consistent across the complete journey. We framed the engagement around the smallest production-worthy flow first, then expanded the scope without weakening the underlying component and data model.

02

How we built it

We began by mapping the user journey and the boundaries of the AI: what context it receives, what it may return, and where deterministic application logic must stay in control. We then built Save, Inbox, and Read as small end-to-end slices, connecting the interface to the data and model layers early so the team could test real responses instead of static mock-ups. Streaming and real-time states were treated as first-class UI states, including loading, partial output, retries, and recovery. The main implementation used React Native, Expo SDK 54, Expo Router, and TypeScript, with typed contracts keeping the JavaScript stack consistent across the product.

03

Delivery

The delivered scope brought Save, Inbox, Read, and Listen into one coherent cross-platform mobile release. Model output, product logic, and user feedback are separated clearly, which makes the AI easier to evaluate and evolve. For Matter, the practical result is a product that communicates its value quickly while giving the team a maintainable base for continued delivery in media & content.

Challenges

Each constraint, and what we did about it.

Constraint

Saved links never reopened

What we did

One clean queue for everything

Constraint

Newsletters lost in email

What we did

A dedicated newsletter inbox

Constraint

Ads & clutter break focus

What we did

Distraction-free reading mode

Constraint

No way to listen on the go

What we did

Natural audio narration

Constraint

Highlights scattered everywhere

What we did

Highlights & notes in one place

Constraint

PDFs stuck on the desktop

What we did

PDFs & web, side by side

Attention is the scarce resource — Matter optimizes for finishing, not collecting.

Results

Measured outcomes.

2-month engagement
+61%
Saved items opened within a week.
+44%
Articles read or listened to in full.
3×
Apple “App of the Day” features.
+38%
Free-to-Premium conversion lift.
HD
Text-to-speech usage ↑
AI
Co-Reader sessions
↑
Highlights per reader
RSS
Feeds & Kindle sends

By optimizing for finishing, not collecting, Matter turned a pile of saved links into a reading habit — and made long-form feel effortless again.

Roadmap

Estimated delivery sequence.

2 months
Weeks 1–2

Discovery & shaping

Discovery with knowledge workers; mapping the save → return gap.

Weeks 3–7

Core build

Save queue, newsletter sync, clean reader, YouTube/podcast transcription.

Weeks 8–9

Launch & iterate

HD TTS, AI Co-Reader, RSS, unlimited highlights, Send to Kindle.

  • Capture
  • Reading
  • Audio & AI
  • Memory

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Every case study covers a product Coralsoft designed, built, and shipped for a client.