Opus One vs EventGrab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
EventGrab
Effortlessly add events to your calendar by scanning printed or written schedules with AI-powered recognition. Review and edit details before instant synchronization with your iOS Calendar.
- Camera scanning of printed calendars
- AI-powered event recognition
- Smart event editing
- Instant iOS Calendar sync
- Unlimited scans (Pro)
- Secure image processing
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EventGrab makes adding events to your calendar effortless. Simply point your camera at any printed/written calendar, schedule, or event listing, and EventGrab's AI-powered technology instantly recognizes and extracts event information. KEY FEATURES: • Camera scanning - Capture calendars with your device camera • AI-powered recognition - Advanced technology parses event details automatically • Smart editing - Review and edit events before adding to your calendar • Instant calendar sync - Events are added directly to your iOS Calendar app • Unlimited scans - Process as many events as you need PERFECT FOR: • Students organizing class schedules • Professionals managing meeting calendars • Event planners tracking multiple schedules • Parents that are handed printed sport schedules • Anyone who wants to digitize printed calendars quickly (appointment reminders, save the dates, etc.) HOW IT WORKS: 1. Scan - Point your camera at any printed/written calendar or schedule 2. Confirm - Review and edit the detected events 3. Done - Events are instantly added to your calendar EventGrab Pro subscription includes unlimited scans and access to all premium features. Your images are processed securely and are not stored on our servers. Privacy Policy: https://doc-hosting.flycricket.io/eventgrab-s-privacy-policy/8e0a46e2-c00d-4cd0-87d8-79f175b299ed/privacy Terms of Use: https://doc-hosting.flycricket.io/eventgrab-s-eula/a80a0ab3-7024-48bb-82a3-0088c3c136c8/terms
Screenshots
Verdict
The clearest difference is monetization model: EventGrab at freemium against Opus One's subscription. EventGrab also leads on rating (5.0 vs 4.7). Opus One's advantage is ratings volume (984 vs 1) and update cadence (every 3 weeks vs every 3 months). On price, ads and in-app purchases 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
Both are free to download. Opus One sells 2 in-app purchases, starting at $4.99 per month and EventGrab sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
EventGrab holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Opus One has 984 ratings behind it against 1, so its average is the more settled of the two.
Opus One ships an update every 3 weeks, EventGrab every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | Opus One | EventGrab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (984 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 65.7% of reviews | — |
| Number of ratings | 984 — better | 1 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 187 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | PISO 13, Inc. | WILLIAM KENT SELLERS |
Customer experience
Opus One
EventGrab
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
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- Allow customization of UI and themes
EventGrab
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Opus One
- Opus One Pro7 Days trial$4.991 Month
- Opus One Professional7 Days trial$39.991 Year
EventGrab
- EventGrab Monthly7 Days trial$1.991 Month
- EventGrab Yearly7 Days trial$11.991 Year









