Comparison

Second Brain vs Voice AI Planner

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Second Brain

Features
Read full description

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. ■ 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. ■ To-Dos Set due dates and repeat rules. See what's left with D-Day countdowns, and group tasks by category. ■ Calendar See to-dos and events on the same screen. Switch between month and week views to check how full your week is. ■ Widgets Check today's tasks from your Home Screen and Lock Screen. See what's left without opening the app. ■ Notifications Get notified as deadlines approach. Start the day with a morning briefing and wrap up with a daily summary. ■ 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. ■ Same content on every device Notes written on iPhone open on the web too. Sign in once and your content follows you across devices. ■ Privacy AI features only process text you explicitly send. See the privacy policy for details. https://docs.ainote.dev/legal/privacy

About

Voice AI Planner

Read full description

An AI planner that lets you capture what’s on your mind just by speaking. Say your to-dos all at once, and AI sorts them into lists for Soon, Later, and Someday. Your plans, feelings, and records of what you’ve accomplished—all on one screen. Created by a developer with ADHD as an AI planner they could keep using in everyday life. You don’t have to keep a perfectly organized schedule. When something comes to mind, just write it down. Completed plans automatically become records, while your feelings and activities are saved alongside them as part of the same day. Things to do right now. Things to do someday. Important things you don’t want to forget. What you’re feeling in this moment. Instead of keeping everything in your head, give each thought a place—and come back to it whenever you need to. -------------------- What is brain dumping? Brain dumping means writing down everything on your mind to help you feel clearer. Sometimes described as a form of meditation through writing, it may help free up working memory and make it easier to process thoughts and memories. Other potential benefits include better focus, reduced stress and anxiety, improved memory retention, and more efficient learning. -------------------- ■ Organize your plans, feelings, and activities in one place • PLANS: What you’re going to do. • THOUGHTS: What you’re feeling right now. • LOG: What you did today. • TODO: What to do soon, later, or someday. The background shifts through morning, daytime, evening, and night at the times you choose. Let the sun and moon accompany you throughout your day. You can also keep your favorite time of day on screen. Your plans, todos, journal entries and other records are stored on your device. AI voice input sends data to external services. HITUKI’s relay server does not store the text content. With HITUKI+, you can access AI-powered voice input, weekly reports, list views, weather, recurring entries, multiple photos, widgets, and more—making everyday life easier to organize. Not to manage everything perfectly, but to get things out of your head and make each day feel a little easier. Whether you have ADHD traits or not, we hope HITUKI can lend a hand in your everyday life. Have a feature request or an idea? We’d love to hear from you. /// Give HITUKI a try! /// Try the annual plan free for 7 days. /// Core features are always free. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Second Brain4 screens
Voice AI Planner4 screens

Verdict

The call

The clearest difference is in-app purchases: Second Brain at none against Voice AI Planner's 3. Voice AI Planner's advantage is update cadence (every 2 days vs monthly) and iOS requirement (18.0 vs 26.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Voice AI Planner sells 3 in-app purchases, starting at $1.99 per month. Second Brain asks for nothing beyond the download.

UpkeepUpdate frequency

Second Brain ships an update monthly, Voice AI Planner every 2 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 3 level
Second Brain versus Voice AI Planner: the parameters behind the verdict, then further details
ParameterSecond BrainVoice AI Planner
PriceFreeFree
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad — betteriPhone
Requires iOS26.018.0 — better
Further details — not scored
Size37 MB23 MB
Age rating4+4+
DeveloperDcodeDaisuke Tamura

In-app purchases

None

Second Brain

No in-app purchases

3 purchases

Voice AI Planner

Subscriptions2
  • HITUKI+ Monthly$1.991 Month
  • HITUKI+ Annual7 Days trial$9.991 Year
One-time1
  • HITUKI+ Lifetime$34.99

Questions

Is Second Brain free?
Second Brain is free to download, with no in-app purchases.
Is Voice AI Planner free?
Voice AI Planner is free to download, with in-app purchases available.
Do Second Brain or Voice AI Planner have ads?
Neither Second Brain nor Voice AI Planner shows ads.
Which is updated more often, Second Brain or Voice AI Planner?
Second Brain ships an update monthly, and Voice AI Planner every 2 days. Most recently, Second Brain was updated on October 31, 2026 and Voice AI Planner on November 10, 2026.

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