Comparison

Opus One vs Planner

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

Head to head
About

Opus One

This app helps you manage tasks and notes with a paperlike interface. Organize your day with daily task lists, schedules, and notes, and use a master task section to capture all your to-dos. Features include drag-and-drop reordering, event integration, and customizable notes.

Highlights
  • Master Task section
  • Daily Task lists with status, priority, and notes
  • Daily Schedule and Event integration
  • Daily Notes with customizable text formatting
  • Drag and drop task reordering
  • Cloud synchronization
  • Sketch drawing canvas
Features
Read full description

Opus One is a real day planner, not another to-do app. Each day gets its own page — tasks with A/B/C priorities, your schedule, and notes — on a planner that looks and feels like paper. Plan on iPhone, iPad, and Mac, and it all stays in sync. YOUR DAY ON ONE PAGE • Daily Tasks with A/B/C priorities, status, notes, and alarms. • A schedule that shows your Calendar events alongside your tasks. • Drag a task onto the schedule — with task durations, the end time fills in automatically. • Daily Notes with photos, PDFs, checklists, and audio. • Today's weather and a daily quote, right on the page. PLAN BEYOND TODAY • Master Tasks: everything on your mind in one list, no due date required. • Goals with timelines, photos, and progress you can see. • Roles: review the areas of your life each week so nothing important gets crowded out. • Mission, Values, and Vision pages to keep the big picture one tap away. • Meeting Planner for agendas, decisions, and next steps. NOTES AND JOURNALS • Rich notes with fonts, colors, tags, and your own custom sections. • Sketch and handwrite with Apple Pencil. • Journals with 25 covers to choose from, plus a guided Gratitude Journal. IT GOES WHERE YOU GO • Home Screen widgets for today's tasks, your mission, your values, and daily quotes. • Live Activities keep today's tasks on your Lock Screen. • Add a task from Control Center, or ask Siri. • Apple Watch app to see your day and check off tasks from your wrist. • iCloud sync across iPhone, iPad, and Mac. MAKE IT YOURS • Planner themes, including seasonal ones. • Task-complete sounds and rewards for finishing what you planned. • Color-coded categories and repeating rules with advanced options. OPUS ONE PRO The core planner is free. Opus One Pro adds cloud sync across all your devices, weather, attachments (images, PDFs, audio), Apple Pencil sketching, categories, repeating rules, Goals, Siri, and themes. One subscription covers iPhone, iPad, and Mac on the same iCloud account. Available yearly or monthly. Subscription details: Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel in your Account Settings. Privacy Policy: https://piso13.com/privacy-policy-2/ Terms of Service: https://piso13.com/terms-of-service/

About

Planner

This app combines a notepad, planner, reminder, calendar, habit tracker, and to-do list into one digital tool. It offers a user-friendly interface that mimics a paper notebook, allowing you to effortlessly create and track plans to achieve your goals.

Highlights
  • Digital notepad, planner, and reminder
  • Habit tracker and to-do list
  • Paper notebook-like interface
  • Full week and detailed daily views
  • Customizable backgrounds and text formatting
  • Voice notes and stylus support
  • iCloud sync and backup
Features
Read full description

Diary, Calendar, Organizer, Planner combines a notepad, planner, reminder, calendar, habit tracker, and to-do list into one easy-to-use app for both your personal life and work. It replaces your traditional paper planner with a fully digital version, letting you effortlessly create and track your plans to achieve your goals. A dream written next to the date becomes a goal! Millions of people worldwide rely on our planner. Organize class schedules, keep notes, manage client tasks, create shopping lists, build habits, boost productivity, and never forget important things. The planner’s interface mimics the classic paper notebook used for generations. It’s the simplest, most user-friendly way to plan—like a school agenda or minimalist paper planner. View your entire week’s plans on one screen—the perfect timeframe for smart scheduling. Easily swipe through weeks, months, or years. Add, edit, or remove tasks, plans, and habits with ease. No complicated forms or data entry—just type or speak your notes, just like making an ordinary memo. Key Features of Diary, Calendar, Organizer, Planner: • Enjoy a satisfying page-flip experience like a paper calendar or planner—no need to carry a physical notebook anymore. • See your full week at a glance plus a detailed daily view for extra notes. Keep all your plans in clear sight. • Choose from a variety of backgrounds to fit your style—and change them as often as you like. • Quickly navigate to any date, past or future. • Highlight notes with color, underline, strikethrough, bold, or italics to prioritize and mark tasks complete. • Maintain a separate notes list (to-do list) untethered to dates—perfect for shopping lists or jotting down ideas. • Display week numbers and jump back to today’s date anytime. • Customize colors and font sizes of your entries. • Change app language settings. • Select your preferred first day of the week. • Add voice notes or use a stylus on tablets. • Sync and back up with iCloud. • Search for words within your notes and plans. Also included: • Recurring events (daily, yearly, etc.) for birthdays, workouts, and more. • Automatic reminders. • Checkboxes to mark completed tasks. • Integration with your iPhone Calendar. Coming soon: • Hourly day views for detailed scheduling. • Options to share your calendar with colleagues, friends, and family. • Integration with other calendar services like Google Calendar. • And much more. The essential features of Diary, Calendar, Organizer, Planner are always free. Upgrade to Premium via one-time purchase or subscription for additional features. Questions or feedback? Contact us at appweeklyplanner@gmail.com Standard Apple LICENSED APPLICATION END USER LICENSE AGREEMENT applies to this app: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Opus One4 screens
Planner4 screens

Verdict

The call

The clearest difference is monetization model: Planner at free with in-app purchases against Opus One's subscription. Opus One's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.0). On price, rating, review sentiment and ratings volume 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

Both are free to download. Opus One sells 2 in-app purchases, starting at $4.99 per month and Planner sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Opus One against 4.7 for Planner. Both are backed by a comparable volume of ratings — 978 and 752 respectively. Written reviews are what separate them: 66% of Opus One's written reviews are positive against 59% of Planner's.

UpkeepUpdate frequency

Opus One ships an update every 3 weeks, Planner monthly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Opus One versus Planner: the parameters behind the verdict, then further details
ParameterOpus OnePlanner
PriceFreeFree
Rating4.7 (978 ratings)4.7 (752 ratings) — better
Positive reviews65.7% of reviews — better59.4% of reviews
Number of ratings978 — better752
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size187 MB1.5 GB
Age rating4+4+
DeveloperPISO 13, Inc.Digital Legal Tech

Customer experience

Opus One

All ratings973 ratings
Positive93.6%
Neutral2.5%
Negative3.9%
Written reviews318 reviews
Positive65.7%
Neutral10.1%
Negative24.2%

Planner

All ratings736 ratings
Positive93.8%
Neutral2.4%
Negative3.8%
Written reviews466 reviews
Positive59.4%
Neutral10.9%
Negative29.6%

User reviews

Opus One

From 978 App Store ratings

What we love

  • 🚀 Life changing
  • 👍 Great app and support
  • 👍 Integrates well with iPhone
  • 👍 Keeps me organized and efficient
  • 👍 Seamless sync across devices

Room to improve

  • 🐛 Sync issues and reliability problems
  • 🐛 Lost data and app crashes
  • 🔒 Concerns about free trial sign-ups
  • 🔒 Difficult to cancel subscription
  • 👎 Lacks weekly/monthly views

Planner

From 752 App Store ratings

What we love

  • 🚀 Great app for what I need
  • 👍 Excellent tool for tracking tasks and events
  • 👍 Useful for business notes and CRM tracking
  • 👍 Fantastic app, not a lot like it on the App Store
  • 👍 Perfectly simple and EXACTLY WHAT I WAS SEARCHING FOR!

Room to improve

  • 🐛 Glitch when trying to organize the order of tasks
  • 🐛 Couldn't even do two notes, no help on how to start a simple new note
  • 🐛 Repeat option not operable
  • 🐛 Reorder of items doesn't save well
  • 🐛 Lacks options for optimal use

Bugs and requests

Opus One

Reported bugs

4 issues
  • Sync issues between devices
  • App crashes and data loss
  • Keyboard not working on iPad
  • Distorted font in calendar view

Requested features

6 requests
  • Add weekly and monthly views
  • Improve Apple Pencil support
  • Add project management features
  • Integrate with more calendar/task apps
  • Provide better training and tutorials
Show 1 more
  • Allow customization of UI and themes

Planner

Reported bugs

8 issues
  • Reorder of tasks doesn't save properly
  • Repeat/recurring event functionality not working
  • Crashes and data loss issues after updates
  • Sync between iPhone and iPad not working
  • Cut/copy/paste functionality not working
Show 3 more
  • Formatting options (bold, underline, etc.) not working in Pro version
  • Inability to add time/hour indicators for events in Pro version
  • Search functionality not available despite being advertised

Requested features

14 requests
  • Add ability to add images and handwrite with Apple Pencil
  • Add more color options for customization
  • Add ability to add links
  • Add ability to set recurring events
  • Add ability to set reminders/alarms
Show 9 more
  • Add ability to change text formatting (bold, underline, etc.)
  • Add ability to set time/hour indicators for events
  • Add ability to search through past entries
  • Add ability to print or export to PDF
  • Add ability to sync across devices automatically
  • Add ability to set password or fingerprint protection
  • Add ability to add voice notes
  • Add ability to create multiple note pages per day
  • Add ability to change page backgrounds and themes

In-app purchases

2 purchases

Opus One

Subscriptions2
  • Opus One Pro7 Days trial$4.991 Month
  • Opus One Professional7 Days trial$39.991 Year
10 purchases

Planner

Subscriptions2
  • PREMIUM 1 month3 Days trial$1.991 Month
  • PREMIUM 1 year7 Days trial$11.991 Year
One-time8
  • Holiday designs (lifetime)2 variants$1.99
  • 3D Shapes (lifetime)$1.99
  • Art Lines (lifetime)$1.99
Show 5 more
  • Textures (lifetime)$1.99
  • Gradients (lifetime)$1.99
  • Daily Planner PRO (lifetime)$6.99
  • PREMIUM for PRO (lifetime)$11.99
  • PREMIUM (lifetime)$23.99

Questions

Is Opus One free?
Opus One is free to download, with in-app purchases available.
Is Planner free?
Planner is free to download, with in-app purchases available.
Which has better reviews, Opus One or Planner?
Planner is rated higher. Opus One averages 4.7 out of 5 from 978 ratings, while Planner averages 4.7 from 752 ratings.
Do Opus One or Planner have ads?
Neither Opus One nor Planner shows ads.
Which is updated more often, Opus One or Planner?
Opus One ships an update every 3 weeks, and Planner monthly. Most recently, Opus One was updated on October 26, 2026 and Planner on October 25, 2026.

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