# Opus One vs Structured

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.

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.

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.

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.

## The numbers

| Metric | Opus One | Structured |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (978 ratings)](https://appshunter.io/ios/app/opus-one-digital-planner/id941852977/reviews) | **[4.8 (168K ratings)](https://appshunter.io/ios/app/structured-daily-planner-todo/id1499198946/reviews)** |
| Number of ratings | 978 | **168K** |
| Positive reviews | 65.7% of reviews | **77.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Subscription | **Freemium** |
| Best chart rank | — | **#78** |
| Size | 187 MB | 290 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, Mac, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [PISO 13, Inc.](https://appshunter.io/developer/940653452) | [unorderly GmbH](https://appshunter.io/developer/1120717165) |

## What reviewers say

### Opus One

[App page](https://appshunter.io/ios/app/opus-one-digital-planner/id941852977)

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:** Family Sharing, Siri integration, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Opus One Pro | $4.99 | per month |
| Opus One Professional | $39.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

- Add weekly and monthly views
- Improve Apple Pencil support
- Add project management features
- Integrate with more calendar/task apps
- Provide better training and tutorials


### Structured

[App page](https://appshunter.io/ios/app/structured-daily-planner-todo/id1499198946)

**Currently charting:** #78 Top Free · Productivity, #133 Top Grossing · Productivity (US App Store)

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:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Structured Pro (Monthly) | $2.99 | per month |
| Structured Pro (Monthly) | $6.99 | per month |
| Structured Pro (Monthly) | $7.99 | per month |
| Structured Pro (Yearly) | $9.99 | per year |
| Structured Pro (Yearly) | $29.99 | per year |
| Structured Pro (Yearly) | $29.99 | per year |
| Structured Pro (Yearly) | $29.99 | per year |
| Structured Pro (Yearly) | $29.99 | per year |
| Structured Pro (Yearly) | $34.99 | per year |
| Structured Pro (Yearly) | $39.99 | per year |
| Structured Pro (Yearly) | $49.99 | per year |
| Structured Pro (Lifetime) | $99.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

- 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


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*