Comparison

PDF Reflow vs PaperCal

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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%
Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

PDF Reflow4 screens
PaperCal4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

PDF Reflow ships an update every 5 days, PaperCal monthly. The most recent releases landed on October 18, 2026 and October 20, 2026 respectively.

Scorecard9 real differences · 1 level
PDF Reflow versus PaperCal: the parameters behind the verdict, then further details
ParameterPDF ReflowPaperCal
PriceFree — better$3.99
Rating3.6 (28 ratings)4.8 (421 ratings) — better
Positive reviews44.4% of reviews76.0% of reviews — better
Number of ratings28421 — better
Update frequencyEvery 5 days — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.014.0 — better
Further details — not scored
Size30 MB105 MB
Age rating4+4+
DeveloperAppBlit LLCJohan Burgler

Customer experience

PDF Reflow

All ratings28 ratings
Positive60.7%
Neutral10.7%
Negative28.6%
Written reviews27 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

PaperCal

All ratings421 ratings
Positive94.8%
Neutral3.1%
Negative2.1%
Written reviews233 reviews
Positive76.0%
Neutral9.4%
Negative14.6%

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
Show 1 more
  • Localization to more languages

In-app purchases

1 purchases

PDF Reflow

One-time1
  • PDF Reflow PRO$7.99
None

PaperCal

No in-app purchases

Questions

Is PDF Reflow free?
PDF Reflow is free to download, with in-app purchases available.
Is PaperCal free?
PaperCal costs $3.99, with no in-app purchases.
Which has better reviews, PDF Reflow or PaperCal?
PaperCal is rated higher. PDF Reflow averages 3.6 out of 5 from 28 ratings, while PaperCal averages 4.8 from 421 ratings.
Do PDF Reflow or PaperCal have ads?
Neither PDF Reflow nor PaperCal shows ads.
Which is updated more often, PDF Reflow or PaperCal?
PDF Reflow ships an update every 5 days, and PaperCal monthly. Most recently, PDF Reflow was updated on October 18, 2026 and PaperCal on October 20, 2026.

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