Petatto TODO vs Second Brain
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Petatto TODO
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Tired of complicated task managers and productivity systems? Petatto TODO is a simple to-do list app inspired by sticky notes. Just write down what you want to do and place it on your board. No pressure. No complicated setup. Just a gentle way to keep track of your tasks. Designed for people who want to stay organized without feeling overwhelmed. FEATURES ⢠Sticky note style task cards ⢠Drag and drop sorting ⢠Mood-based labels ⢠Fast and simple search ⢠Smooth animations ⢠Cute pastel design ⢠Clean and distraction-free interface PERFECT FOR ⢠Daily tasks ⢠Personal reminders ⢠Study plans ⢠Shopping lists ⢠Work notes ⢠Small habits and routines FOR PEOPLE WHO ⢠Have tried many to-do apps without success ⢠Feel stressed by complicated productivity tools ⢠Prefer simple task management ⢠Love cute and minimal design ⢠Want a calmer way to stay organized Petatto TODO isn't about maximizing productivity. It's about helping you take the next small step. A simple, gentle, and friendly place for your tasks.
Second Brain
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Manage notes, to-dos, and your schedule in one app. Capture thoughts as notes, actions as to-dos, and anything with a date on the calendar. No more hopping between apps. ā Notes Write fast, organize later. Sort into folders and find anything with search. Share only the notes you choose via a link, and unshare with a single tap. ā To-Dos Set due dates and repeat rules. See what's left with D-Day countdowns, and group tasks by category. ā Calendar See to-dos and events on the same screen. Switch between month and week views to check how full your week is. ā Widgets Check today's tasks from your Home Screen and Lock Screen. See what's left without opening the app. ā Notifications Get notified as deadlines approach. Start the day with a morning briefing and wrap up with a daily summary. ā AI Organize Pull action items out of long text. Turn copied text into to-dos. Gather past records into a retrospective. AI features are free up to 3 times per month. To use more, connect your own AI API key. ā Same content on every device Notes written on iPhone open on the web too. Sign in once and your content follows you across devices. ā Privacy AI features only process text you explicitly send. See the privacy policy for details. https://docs.ainote.dev/legal/privacy
Screenshots
Verdict
The clearest difference is update cadence: Second Brain at every 2 days against Petatto TODO's every 8 days. Petatto TODO's advantage is iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Petatto TODO ships an update every 8 days, Second Brain every 2 days. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.
| Parameter | Petatto TODO | Second Brain |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days | Every 2 days ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 15.1 ā better | 26.0 |
| Further details ā not scored | ||
| Size | 84 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | MARIE MORIKAGE | kim dahye |
In-app purchases
Petatto TODO
No in-app purchases
Second Brain
No in-app purchases
Questions
Is Petatto TODO free?
Is Second Brain free?
Do Petatto TODO or Second Brain have ads?
Which is updated more often, Petatto TODO or Second Brain?
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