PDF Reflow vs PaperCal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Reflow
Read PDF and Word documents on your phone with a mobile-optimized layout. It reformats documents to fit your screen width, preserving original fonts, colors, and graphics. Features include text search, selection, and adjustable text size.
- Mobile-optimized PDF and Word reading
- Reflows text to fit screen width
- Preserves original fonts, colors, and graphics
- Text search and selection
- Adjustable text size up to 300%
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Reading PDFs on your phone shouldn’t feel like work. PDF Reflow transforms PDFs and Word documents into a clean, phone-friendly reading experience. No more tiny text, constant pinching, horizontal scrolling, or multi-column pages that don’t fit your screen. The latest version uses AI-powered page analysis to better understand each document’s layout, including text, graphics, figures, tables, and mathematical formulas. It then reorganizes the content into a natural vertical flow while preserving the document’s structure and visual context. PDF Reflow is ideal for: • Research papers • Reports and manuals • Articles • Word documents • Technical and scientific PDFs • Documents with figures, tables, colors, and formulas Features include: • AI-powered page and layout analysis • Comfortable, screen-width reading • Text selection and highlighting • Search within documents • Adjustable text size up to 300% • Automatic Table of Contents • Dark mode for PDFs • Built-in document picker If you read PDFs on your phone and are tired of fighting the original page layout, PDF Reflow is made for you. Questions or feedback? laurent@appblit.com
PaperCal
This app offers a visually appealing and user-friendly calendar experience, reimagined for iPhone. It features clean, paper-inspired layouts and beautiful widgets for your Home and Lock Screen, allowing you to see tasks and events together in one place.
- Paper-inspired layouts
- Home and Lock Screen widgets
- Tasks and events in one view
- Sync with existing calendars
- 20+ customizable themes
- Yearly, monthly, weekly, daily views
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A paper calendar. Reimagined for iPhone. Simple, clear, and easy to use. With beautiful widgets for your Home and Lock Screen. ▶ Why PaperCal? ◀ • See your schedule at a glance with clean, paper-inspired layouts • See tasks and events together in one view • Easy-to-read widgets for your Home and Lock Screen • Customize your calendar with 20+ beautifully designed themes • No clutter, no learning curve ▶ Calendar Views ◀ Switch between yearly, monthly, weekly, and daily views. Flip through pages like a real paper calendar. A clean, distraction-free interface. ▶ Tasks & Events in One Place ◀ No need for multiple apps. • Manage tasks and events in one place • Add and organize activities instantly • Sync with your existing calendars • Stay up to date across all your devices ▶ Make It Yours ◀ Choose from 20+ unique themes designed by illustrator Jojo Falk. • Add color tags to events and tasks • Quickly search your schedule • View week numbers and day counts ▶ Built for iPhone (and more) ◀ • Home Screen & Lock Screen widgets • Works on iPhone, iPad, Apple Watch, and Mac (Apple silicon) • One purchase, available on all devices ▶ Loved by Users ◀ “I love its simplicity and reliability.” “This calendar is great — I can see my whole week at a glance.” “I love this calendar because I can use it like a planner.” Rated 4.7+ by users worldwide. ▶ A Fresh Start ◀ PaperCal is the successor to “Week Agenda Ultimate”. Rebuilt from scratch based on years of feedback — now faster, clearer, and more refined. Start using PaperCal today.
Screenshots
Verdict
The clearest difference is price: PDF Reflow at Free against PaperCal's $3.99. PDF Reflow also leads on update cadence (every 5 days vs monthly). PaperCal's advantage is rating (4.8 vs 3.6) and in-app purchases (none vs 1). On ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
PDF Reflow is free to download; PaperCal costs $3.99 up front. PDF Reflow sells 1 one-off in-app purchase. PaperCal asks for nothing beyond the download.
PaperCal holds the better App Store score, 4.8 against 3.6. That said, the two scores are not equally well evidenced: PaperCal has 421 ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 44% of PDF Reflow's written reviews are positive against 76% of PaperCal's.
PDF Reflow ships an update every 5 days, PaperCal monthly. The most recent releases landed on October 18, 2026 and October 20, 2026 respectively.
| Parameter | PDF Reflow | PaperCal |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 3.6 (28 ratings) | 4.8 (421 ratings) — better |
| Positive reviews | 44.4% of reviews | 76.0% of reviews — better |
| Number of ratings | 28 | 421 — better |
| Update frequency | Every 5 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 16.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | AppBlit LLC | Johan Burgler |
Customer experience
PDF Reflow
PaperCal
Bugs and requests
PDF Reflow
Not enough reviews yet to summarise bugs or requests.
PaperCal
Reported bugs
3 issues- Events not displaying correctly in widgets
- App freezing when adding locations to events
- Inconsistent behavior when changing event times
Requested features
6 requests- Sync with Apple Reminders
- Add notes/attachments to events
- Ability to reorder tasks
- More color/theme options
- Improved widget functionality
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- Localization to more languages
In-app purchases
PDF Reflow
- PDF Reflow PRO$7.99
PaperCal
No in-app purchases









