Comparison

PaperCal vs NoteOS

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

Head to head
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.

About

NoteOS

Capture thoughts, organize your day, and build routines with an AI-powered productivity app. It unifies note-taking, voice capture, to-dos, and habit tracking into a single, fast workflow, reducing friction between ideas and actions.

Highlights
  • Text and voice note-taking
  • AI note processing and summarization
  • Task and priority tracking
  • Habit building and tracking
  • Unified workspace for ideas and plans
  • Fast capture for on-the-go thoughts
Features
Read full description

Capture your thoughts, organize your day, and build better routines — all in one place. NoteOS is an AI-powered productivity app that brings together note-taking, voice capture, to-dos, and habit tracking in a simple, fast workflow. Instead of jumping between separate apps for notes, tasks, and routines, you can keep everything together and move from idea to action with less friction. Whether you are saving a quick thought, recording a voice note on the go, planning your day, or trying to stay consistent with your habits, NoteOS helps you capture what matters and turn it into something useful. With NoteOS, you can: Take notes with text or voice Use AI to process, organize, and summarize your notes Keep track of tasks and daily priorities Build routines with habit tracking Store ideas, reminders, and plans in one workspace Stay focused with a cleaner system for thinking and doing Built for real life: Ideas do not always come when you are sitting down and ready to type. Sometimes you are walking, driving, working, or in the middle of something else. NoteOS is designed for those moments. Capture a thought quickly, come back later, and let AI help you make sense of it. From note-taking to action: A lot of apps help you collect information. Fewer help you do something with it. NoteOS is built to help you move from messy input to clear output. Save an idea, review it, organize it, and turn it into tasks or routines you can actually follow. One app instead of many: If you are tired of splitting your life between a notes app, a to-do app, a reminders app, and a habit tracker, NoteOS gives you a more unified system. Your thoughts, plans, and daily actions stay connected, so it is easier to stay organized without overcomplicating your workflow. Great for: Personal notes Voice notes on the go Daily planning Task management Habit tracking Brain dumps Idea capture Simple personal organization NoteOS is made for students, professionals, creators, founders, and anyone who wants a faster way to capture ideas and stay on top of daily life. If you think fast, forget things easily, or want a better way to manage notes, tasks, and habits together, NoteOS is built for you. One place to think, plan, and follow through. Developed by Fastemy - Fast and Fun Education Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PaperCal4 screens
NoteOS4 screens

Verdict

The call

The clearest difference is price: NoteOS at Free against PaperCal's $3.99. PaperCal's advantage is in-app purchases (none vs 11) and rating (4.8 vs 4.5). On update cadence and 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

NoteOS is free to download; PaperCal costs $3.99 up front. NoteOS sells 11 in-app purchases, starting at $39.99 per year. PaperCal asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PaperCal holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: PaperCal has 421 ratings behind it against 27, so its average is the more settled of the two. Written reviews point the same way: 76% of PaperCal's written reviews are positive against 57% of NoteOS's.

UpkeepUpdate frequency

PaperCal ships an update monthly, NoteOS every 2 months. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard8 real differences · 2 level
PaperCal versus NoteOS: the parameters behind the verdict, then further details
ParameterPaperCalNoteOS
Price$3.99Free — better
Rating4.8 (421 ratings) — better4.5 (27 ratings)
Positive reviews76.3% of reviews — better57.1% of reviews
Number of ratings421 — better27
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS14.0 — better17.6
Further details — not scored
Size105 MB23 MB
Age rating4+4+
DeveloperJohan BurglerAbdullah YILMAZ

Customer experience

PaperCal

All ratings421 ratings
Positive94.8%
Neutral3.1%
Negative2.1%
Written reviews232 reviews
Positive76.3%
Neutral9.5%
Negative14.2%

NoteOS

All ratings27 ratings
Positive88.9%
Neutral3.7%
Negative7.4%
Written reviews7 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

Bugs and 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

NoteOS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

PaperCal

No in-app purchases

11 purchases

NoteOS

Subscriptions4
  • NoteOS Plus Yearly7 Days trial$39.991 Year
  • NoteOS Business Monthly$49.991 Month
  • NoteOS Premium Yearly$99.991 Year
Show 1 more
  • NoteOS Business Yearly$399.991 Year
One-time7
  • NoteOS 1 Hour AI Credits$0.99
  • NoteOS 500MB AI Credits$0.99
  • NoteOS 2GB AI Credits$2.99
Show 4 more
  • NoteOS 5 Hour AI Credits$3.99
  • NoteOS 10GB AI Credits$9.99
  • NoteOS 20 Hour AI Credits$12.99
  • NoteOS Plus Lifetime$49.99

Questions

Is PaperCal free?
PaperCal costs $3.99, with no in-app purchases.
Is NoteOS free?
NoteOS is free to download, with in-app purchases available.
Which has better reviews, PaperCal or NoteOS?
PaperCal is rated higher. PaperCal averages 4.8 out of 5 from 421 ratings, while NoteOS averages 4.5 from 27 ratings.
Do PaperCal or NoteOS have ads?
Neither PaperCal nor NoteOS shows ads.
Which is updated more often, PaperCal or NoteOS?
PaperCal ships an update monthly, and NoteOS every 2 months. Most recently, PaperCal was updated on September 22, 2026 and NoteOS on September 21, 2026.

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