Doo vs Dattii
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Doo
This app helps you overcome procrastination by breaking down tasks into manageable digital cards. Its unique card-based interface and focus on one task at a time promote productivity and habit building. It offers various task types, scheduling options, and cross-device syncing.
- Card-based task interface
- Customizable task groups
- Open-ended, calendar, and location-based tasks
- Share extension for creating tasks from other apps
- Customizable task scheduling and alerts
- iCloud sync across devices
- Task collaboration
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Become a more productive you, one card at a time. WHY DOO? It’s easy to procrastinate your to-do list without a clear first step. Tasks with large goals can feel impossible to finish. Doo helps you procrastinate less. Your reminders become cards that are easy to start and easy to finish. The streamlined edit screen encourages you to create tasks that can fit on a digital index card. Each card shows up in a stack — instead of a list — so you can focus on one thing at a time. BUILD BETTER HABITS Pick a few tasks each day and snooze the rest. Doo helps you create more consistent, sustainable habits. Reduce your anxiety and become a more productive you, one card at a time. *** 2021 Webby Award Nominee *** Best App - Work & Productivity *** 2021 Webby Award Honoree *** Best App User Interface REVIEWS “I absolutely love this app... *incredibly* satisfying...” – Doo 2 Review, Buzzfeed “There’s just enough guilt involved in hitting snooze that I often just complete the task. That’s the point." – WIRED “Doo is a beautiful way to get things done without stressing yourself out.” – Doo 2 Review, The Next Web FEATURE HIGHLIGHTS • Be more productive with a unique, card-based interface • Separate cards into custom groups • Create open-ended, calendar, or location-based tasks • Create tasks within other apps with the share extension • Schedule tasks with custom intervals and alerts • Sync with iCloud across iOS and Mac devices • Collaborate on tasks with other Doo users (requires iCloud) • Support for VoiceOver, Dynamic Text, and keyboard shortcuts • Stay on task with Home Screen & Lock Screen widgets • Complete or snooze tasks from notifications • Drag and drop text, locations, and URLs to create tasks • Screen lock with FaceID, TouchID, or passphrase • Create and complete reminders with Siri • Multitask with Split View and Slide Over
Dattii
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Take Back Control I used to struggle a lot with procrastination. I always wished I could be like successful people—staying focused on my work, finding something I’m truly good at, and reaching my full potential. But I often gave up too soon or got distracted too easily. That changed when I discovered the Pomodoro Technique—a method of breaking time into small chunks and balancing focus with rest. It helped me maintain steady productivity and actually achieve my goals. I even built my own app, Dattii, based on this technique. I use it every day myself, and it’s helped me overcome procrastination and anxiety while giving me a stronger sense of control over my daily rhythm. I highly recommend you try Dattii too and see how it can transform your workflow. - Students → study smarter - Professionals → finish what matters - ADHD-friendly → structure without overwhelm * Attention Spans Are Collapsing - Average focus: 47 seconds - 50%+ feel unproductive - Structured focus = +126% productivity * Focus = Your Brain’s Gym - Train concentration like a muscle - Beat procrastination - Stay aware of time - Protect your energy * Distraction = Big Money Drain - 23 minutes lost per interruption - 9% of global GDP → gone - $438B wasted every year * Digital Overload Is Real - 117 emails / 153 chats / 275 interruptions -- daily - 60% of time wasted on “work about work”
Screenshots
Verdict
The clearest difference is price: Dattii at Free against Doo's $4.99. Dattii also leads on update cadence (every 4 days vs every 2 weeks) and iOS requirement (15.6 vs 17.6). Doo's advantage is in-app purchases (none vs 2). On ads 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
Dattii is free to download; Doo costs $4.99 up front. Dattii sells 2 one-off in-app purchases. Doo asks for nothing beyond the download.
Doo ships an update every 2 weeks, Dattii every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Doo | Dattii |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.4 (39 ratings) — better | — |
| Positive reviews | 55.2% of reviews | — |
| Number of ratings | 39 — better | — |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 17 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Ciarlo Software, LLC | SZU-YUAN CHI |
In-app purchases
Doo
No in-app purchases
Dattii
- Kindly a cup of coffee$0.99
- A cup of coffee$1.99









