Comparison

Opus One vs Structured

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

Structured

Organize your day with a visual timeline that integrates your calendar, to-dos, routines, and habits. This app helps users feel calmer, focus faster, and accomplish more daily. It's ideal for work, study, travel, and managing ADHD, offering planning tools and focus timers.

Highlights
  • Visual timeline for day and week organization
  • Inbox for instant idea capture
  • Sub-tasks and notes for project breakdown
  • Pomodoro focus timer and Live Activities
  • Color-coding and icon personalization
  • Recurring tasks and routines
  • AI-powered daily drafting
Features
Read full description

Plan your day visually. Stay focused. Get things done. 400,000+ five-star ratings · Trusted by 1.5 million active users The daily planner built for how your brain actually works. Map your tasks and calendar onto a visual timeline, block your time with intention, and finally build a routine that sticks — whether you have ADHD or just a lot on your plate. WHY STRUCTURED WORKS Most planners give you a blank page. Structured gives you a timeline. You see your whole day laid out, with every task, event, and routine in order. It's time blocking made simple. Built for ADHD minds, busy professionals, and students who need more than a to-do list. FREE FEATURES - Visual day planner with an intuitive drag-and-drop timeline - Inbox to capture ideas fast and sort them later - Syncs across iPhone, iPad, Apple Watch, and Mac - Break big projects into sub-tasks with notes - Pomodoro focus timer, Live Activities, and interactive widgets - Color-coding and hundreds of icons to personalize your schedule - Accessibility built in: VoiceOver, Voice Control, dyslexia-friendly font, and multiple languages STRUCTURED PRO - Connect your calendars and Reminders for a complete daily schedule organizer - Build recurring tasks and routines - AI-powered day planning: draft your schedule in seconds - Replan: automatically reschedules missed or forgotten tasks - Custom notifications to match your workflow PERFECT FOR - ADHD-friendly daily planning that actually sticks - Time blocking your work and study sessions - Morning routine and evening routine planning - Students managing class timetables and study tasks - Anyone who wants a simple to-do list app with a timeline view - Habit tracking alongside your daily task planner YOUR DAY, YOUR WAY Structured isn't just a task manager or a habit tracker. It's the daily planner that puts everything in one place — so you can plan your day, build better habits, and get things done without the overwhelm. Structured Pro is available monthly, annually, or as a lifetime purchase. Terms & Privacy: https://structured.app/legal

Screenshots

Opus One4 screens
Structured4 screens

Verdict

The call

The clearest difference is monetization model: Structured at freemium against Opus One's subscription. Structured also leads on ratings volume (168K vs 978) and review sentiment (78% vs 66%). Opus One's advantage is iOS requirement (15.0 vs 18.0). On price, rating, 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

Both are free to download. Opus One sells 2 in-app purchases, starting at $4.99 per month and Structured sells 12 in-app purchases, starting at $2.99 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 4.8 for Structured. That said, the two scores are not equally well evidenced: Structured has 168K ratings behind it against 978, so its average is the more settled of the two. Written reviews are what separate them: 66% of Opus One's written reviews are positive against 78% of Structured's.

UpkeepUpdate frequency

Opus One ships an update every 3 weeks, Structured every 2 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 6 level
Opus One versus Structured: the parameters behind the verdict, then further details
ParameterOpus OneStructured
PriceFreeFree
Rating4.7 (978 ratings)4.8 (168K ratings) — better
Positive reviews65.7% of reviews77.8% of reviews — better
Number of ratings978168K — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
Best chart rank—#78 — better
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, Mac, Apple Watch
Requires iOS15.0 — better18.0
Further details — not scored
Size187 MB290 MB
Age rating4+4+
DeveloperPISO 13, Inc.unorderly GmbH

Customer experience

Opus One

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

Structured

All ratings167,909 ratings
Positive95.2%
Neutral2.7%
Negative2.1%
Written reviews3,726 reviews
Positive77.8%
Neutral8.1%
Negative14.2%

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

Structured

From 168K App Store ratings

What we love

  • 🚀 Highly organized and structured
  • 🎨 Customizable colors and icons
  • ⏱️ Visualizes time and task duration
  • 🗓️ Integrates with calendar and reminders
  • 🧠 Helpful for ADHD and neurodivergent users

Room to improve

  • 🕰️ Tedious to change task times
  • 🔀 Difficulty rearranging tasks
  • 🔍 Lack of search for icons
  • 📅 Missing weekly/monthly view
  • ⏰ Notifications not customizable

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

Structured

Reported bugs

3 issues
  • Recurring subtasks not unchecking properly
  • Sync issues between devices
  • Glitches when changing task times

Requested features

7 requests
  • Drag and drop to rearrange tasks
  • Ability to push back all tasks
  • Shared calendars and task lists
  • Routines and habit tracking
  • More icon categories and search
Show 2 more
  • Customizable notifications
  • Improved Apple Watch and Mac support

In-app purchases

2 purchases

Opus One

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

Structured

Subscriptions11
  • Structured Pro (Monthly)$2.991 Month
  • Structured Pro (Monthly)3 variants$6.991 Month
  • Structured Pro (Monthly)$7.991 Month
Show 8 more
  • Structured Pro (Yearly)$9.991 Year
  • Structured Pro (Yearly)1 Year trial2 variants$29.991 Year
  • Structured Pro (Yearly)3 Days trial$29.991 Year
  • Structured Pro (Yearly)7 Days trial$29.991 Year
  • Structured Pro (Yearly)14 Days trial$29.991 Year
  • Structured Pro (Yearly)3 Days trial$34.991 Year
  • Structured Pro (Yearly)3 Days trial$39.991 Year
  • Structured Pro (Yearly)3 Days trial$49.991 Year
One-time1
  • Structured Pro (Lifetime)$99.99

Questions

Is Opus One free?
Opus One is free to download, with in-app purchases available.
Is Structured free?
Structured is free to download, with in-app purchases available.
Which has better reviews, Opus One or Structured?
Structured is rated higher. Opus One averages 4.7 out of 5 from 978 ratings, while Structured averages 4.8 from 168K ratings.
Do Opus One or Structured have ads?
Neither Opus One nor Structured shows ads.
Which is updated more often, Opus One or Structured?
Opus One ships an update every 3 weeks, and Structured every 2 weeks. Most recently, Opus One was updated on October 26, 2026 and Structured on October 28, 2026.

Other comparisons