# Opus One vs PlanPlus Mobile

The clearest difference is review sentiment: Opus One at 66% against PlanPlus Mobile's 18%. Opus One also leads on rating (4.7 vs 2.1) and update cadence (every 3 weeks vs every 2 months). PlanPlus Mobile's advantage is in-app purchases (none vs 2) and iOS requirement (9.3 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Opus One sells 2 in-app purchases, starting at $4.99 per month. PlanPlus Mobile asks for nothing beyond the download.

Opus One holds the better App Store score, 4.7 against 2.1. That said, the two scores are not equally well evidenced: Opus One has 955 ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 66% of Opus One's written reviews are positive against 18% of PlanPlus Mobile's.

Opus One ships an update every 3 weeks, PlanPlus Mobile every 2 months. The most recent releases landed on September 28, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Opus One | PlanPlus Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (955 ratings)](https://appshunter.io/ios/app/opus-one-digital-planner/id941852977/reviews)** | [2.1 (38 ratings)](https://appshunter.io/ios/app/planplus-mobile/id1067135061/reviews) |
| Number of ratings | **955** | 38 |
| Positive reviews | **65.7% of reviews** | 18.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Subscription | **Free** |
| Size | 184 MB | 36 MB |
| Requires iOS | 15.0 | **9.3** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PISO 13, Inc.](https://appshunter.io/developer/940653452) | [CompleteXRM,inc](https://appshunter.io/developer/867324129) |

## 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


### PlanPlus Mobile

[App page](https://appshunter.io/ios/app/planplus-mobile/id1067135061)

Boost your productivity with this mobile planning tool. It helps you organize tasks, manage your calendar, and keep track of contacts using a unique prioritization method. Ideal for anyone looking to improve their daily organization and efficiency.

**Highlights:** Prioritized task list management, Task delegation, Calendar and appointment scheduling, Contact management, Voice note recording

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Opus One free?

Opus One is free to download, with in-app purchases available.

### Is PlanPlus Mobile free?

PlanPlus Mobile is free to download, with no in-app purchases.

### Which has better reviews, Opus One or PlanPlus Mobile?

Opus One is rated higher. Opus One averages 4.7 out of 5 from 955 ratings, while PlanPlus Mobile averages 2.1 from 38 ratings.

### Do Opus One or PlanPlus Mobile have ads?

Neither Opus One nor PlanPlus Mobile shows ads.

### Which is updated more often, Opus One or PlanPlus Mobile?

Opus One ships an update every 3 weeks, and PlanPlus Mobile every 2 months. Most recently, Opus One was updated on September 28, 2026 and PlanPlus Mobile on September 10, 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.*