PaperCal vs NoteOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
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.
- 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
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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
Verdict
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
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.
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.
PaperCal ships an update monthly, NoteOS every 2 months. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.
| Parameter | PaperCal | NoteOS |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (421 ratings) — better | 4.5 (27 ratings) |
| Positive reviews | 76.3% of reviews — better | 57.1% of reviews |
| Number of ratings | 421 — better | 27 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 105 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Johan Burgler | Abdullah YILMAZ |
Customer experience
PaperCal
NoteOS
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
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- Localization to more languages
NoteOS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PaperCal
No in-app purchases
NoteOS
- NoteOS Plus Yearly7 Days trial$39.991 Year
- NoteOS Business Monthly$49.991 Month
- NoteOS Premium Yearly$99.991 Year
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- NoteOS Business Yearly$399.991 Year
- NoteOS 1 Hour AI Credits$0.99
- NoteOS 500MB AI Credits$0.99
- NoteOS 2GB AI Credits$2.99
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- 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








