Opal Reader
Read PDFs and EPUBs on iPhone Duo
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
Opal Reader is a PDF and EPUB reader with a notebook beside the page. On iPhone Duo, unfold to read your book and your notes together, then fold it closed and keep reading in a compact view with your place saved. Also available on iPhone and iPad.
PH · launched Nov 10, 2026 · 184 upvotes (top 1%) · 0 views
Niche: ebook and reading apps · 190 launches, 18 in the last 7 days ▼ -33% · Explore this niche →
Category and tags
- Horizontal
- Prosumer
- Not AI
- Commercial product
- iOS
- Productivity
- Books
Visit website ↗ Source listing ↗
More like this: all 190 launches in ebook and reading apps →
Could you build this?
Yes A PDF and EPUB reader with a side notebook is achievable with standard iOS frameworks like PDFKit and SwiftUI, and the foldable layout is a UI adaptation.
Competitors
Other products that read as similar to this one : 625 launches clear the similarity bar, closest 8 shown.
Attention rank: #2 of 626 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 343 days after the earliest competitor.
- e-Reader · ph · 2026-11-11 · 1 upvotes · similarity 0.57
- PDF Scanner: Scan & Convert AI · ph · 2026-09-21 · 2 upvotes · similarity 0.57
- Athena Reader · ph · 2026-11-08 · 1 upvotes · similarity 0.56
- Pagefold: PDF Scanner OCR · ph · 2026-09-28 · 1 upvotes · similarity 0.55
- PDFz · ph · 2026-09-16 · 1 upvotes · similarity 0.55
- MarkRead – Markdown Reader · ph · 2026-10-22 · 2 upvotes · similarity 0.55
- Common Reader · ph · 2026-09-14 · 2 upvotes · similarity 0.55
- WristFile · ph · 2026-11-12 · 2 upvotes · similarity 0.55
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.