Comparison

Opus One vs Geckoss

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

Geckoss

Access personalized AI companions for fitness, career, language learning, cooking, and well-being. Get tailored advice and support to enhance your daily life. Offers both free and premium subscription options.

Highlights
  • Personalized AI companions
  • Fitness coaching
  • Language learning support
  • Career advice
  • Culinary guidance
  • Well-being support
Features
Read full description

Empower Your Life with Personalized AI Companions Geckoss is your gateway to a world of intelligent, conversational AI companions designed to support, guide, and enhance your daily life. Whether you’re looking for fitness tips, career advice, or just a great recipe, Geckoss’s AI companions are here to help you thrive. Powered by the most advanced Large Language Models (LLMs), Geckoss ensures your interactions are natural, intelligent, and highly personalized to meet your specific needs. Discover a World of Specialized AI Companions: AI Fitness Coach: Need workout motivation or fitness advice? Talk to your AI personal trainer for custom routines and wellness tips. AI Language Buddy: Improve your language skills through immersive conversations with AI companions offering personalized recommendations. AI Career Coach: Looking to advance your career? Get resume tips, interview prep, and actionable guidance from your personal AI career advisor. AI Culinary Expert: Master the art of cooking with guidance from AI chefs offering diverse recipes and culinary advice—from Italian classics to comforting home-cooked meals. AI Movie Buff: Dive into endless movie discussions or find your next binge-worthy film with AI movie companions. AI Well-Being Coach: Feeling stressed or low on energy? Chat with our AI well-being experts for motivation, self-care advice, and emotional support. Why Geckoss? While some apps focus on general AI tools, Geckoss provides personalized AI companions tailored to your daily needs—from fitness to well-being and everything in between. Free & Subscription Options Available: Geckoss offers both free access to AI companions and subscription-based features. Free users receive daily tokens, while premium subscribers unlock unlimited interactions and additional features. Manage subscriptions through your Apple settings, with easy cancellation at any time. By using Geckoss, you confirm that you have read and agreed to our Privacy Policy and Terms of Use.

Screenshots

Opus One4 screens
Geckoss4 screens

Verdict

The call

The clearest difference is monetization model: Geckoss at free with in-app purchases against Opus One's subscription. Geckoss also leads on rating (5.0 vs 4.7) and iOS requirement (13.0 vs 15.0). Opus One's advantage is ads (none vs shown) and ratings volume (984 vs 2). On price, update cadence, in-app purchases and device support 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 Geckoss sells 4 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Geckoss 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 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Opus One ships an update every 3 weeks, Geckoss every 5 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Opus One versus Geckoss: the parameters behind the verdict, then further details
ParameterOpus OneGeckoss
PriceFreeFree
Rating4.7 (984 ratings)5.0 (2 ratings) — better
Positive reviews65.7% of reviews—
Number of ratings984 — better2
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size187 MB59 MB
Age rating4+17+
DeveloperPISO 13, Inc.Geckoss Inc.

Customer experience

Opus One

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

Geckoss

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Geckoss

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Opus One

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

Geckoss

Subscriptions4
  • Geckoss + Monthly Plan$12.991 Month
  • Geckoss AI+ Monthly Plan$24.991 Month
  • Geckoss + Annual Plan$124.991 Year
Show 1 more
  • Geckoss AI+ Annual Plan$239.991 Year

Questions

Is Opus One free?
Opus One is free to download, with in-app purchases available.
Is Geckoss free?
Geckoss is free to download, with in-app purchases available.
Which has better reviews, Opus One or Geckoss?
Geckoss is rated higher. Opus One averages 4.7 out of 5 from 984 ratings, while Geckoss averages 5.0 from 2 ratings.
Do Opus One or Geckoss have ads?
Geckoss shows ads; Opus One does not.
Which is updated more often, Opus One or Geckoss?
Opus One ships an update every 3 weeks, and Geckoss every 5 weeks. Most recently, Opus One was updated on November 1, 2026 and Geckoss on October 30, 2026.

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