Pocket Brain vs Second Brain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pocket Brain
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Boost your productivity with Pocket Brain – the fast, AI-powered second brain in your pocket. Whether it's an idea, a reminder, a to-do list, or a random thought—Pocket Brain lets you speak or type it instantly, then automatically organizes everything for you using smart AI. Need to find something later? Just ask. Pocket Brain understands natural language and brings together related thoughts, even if they were saved weeks apart. Key Features - Capture ideas fast by voice or text No more forgotten thoughts. Just open the app, speak, and it's saved. - AI organizes your knowledge for you Your notes are sorted automatically—no tags or folders needed. - Chat with your second brain Ask questions like “What were my business ideas last month?” or “What books do I want to read?” and get instant answers. - Smart search & retrieval Forget keywords—just describe what you're looking for in your own words. - Save everything in one place Ideas, lists, plans, reflections—anything you want to remember. - Private. Secure. Yours. Your thoughts belong to you. Volty ensures your data is stored securely and privately. Perfect for: - Entrepreneurs & creatives capturing spontaneous ideas - Students organizing notes and study material - Busy professionals keeping track of tasks, meetings, and insights - Anyone building a personal knowledge base Don’t let your best thoughts slip away. Pocket Brain is the fastest way to capture, organize, and access your knowledge.
Second Brain
This AI-powered journal captures your thoughts via voice or text, automatically organizing and connecting them. It helps you recall memories, discover patterns, and reflect on your growth.
- AI classification, tagging, and summarization
- Semantic search by meaning
- Three-layer memory system
- People cards for relationship tracking
- Weekly AI reflections
- Voice input with transcription
- Data export (JSON + Markdown)
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Most notes get written once and never read again. Second Brain reads them for you. Write a line whenever something is on your mind, and once a week it tells you what your week was really about. You don't need to keep a diary or a streak. One line a day is enough. YOUR WEEK, READ BACK TO YOU The weekly insight covers what took up your attention, what changed since last week, and one concrete thing to try. Every insight shows the notes it came from, so you can check it against what you actually wrote. Your first weekly insight is free. Once a month you get a longer read on where the month went. After your first five notes there's also a first impression of you, and it fills in as you keep writing. CAPTURE Type, or press and hold to speak. Share text, links or images from other apps, or pick screenshots and the text in them is read on your phone. Each note gets a title and tags automatically, so there's nothing to file. ASK YOUR PAST Explore searches by meaning, not only keywords. Ask "What did I decide about the move?" or "What did Anna say last time?" and get an answer built from your own notes. PEOPLE Keep a card for the people in your life: what they said, what you did together, what to bring up next time. Before you meet someone, a reminder shows your open to-dos and what you talked about last time. REMINDERS AND WIDGETS Write "dentist next Friday at 3pm" and it becomes a reminder and a checklist item. There are widgets for the Home Screen and Lock Screen, and the checklist can run as a Live Activity. PRIVACY Your notes are stored on your device. There's no account to create and no server of mine in between. To title, tag and reflect on your notes, their text is sent to a cloud AI service. If your iPhone supports Apple Intelligence, you can turn on On-Device AI and new notes are handled on the phone instead; Explore and reflections still use the cloud. Every AI result is labeled "On device" or "Cloud AI", so you can see which is which. iCloud sync is optional and uses your own iCloud account. You can export everything as JSON or Markdown at any time, for free. FREE AND PRO Free: 5 notes a day, daily reflections, your first weekly insight, and export. Pro: unlimited notes, weekly insights and monthly reads, 20 Explore questions a day, up to 30 screenshot imports a day, unlimited people, the memory graph and life themes, iCloud sync, and the Rainbow Aurora theme. Pro is a monthly or yearly subscription. The yearly plan comes with a 7-day free trial, the monthly plan with 3 days. Payment is charged to your Apple ID and renews automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings. Second Brain is made by one person, Lemon. Terms of Use: https://smartkiitos.com/secondbrain/terms/ Privacy Policy: https://smartkiitos.com/secondbrain/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: Pocket Brain at none against Second Brain's 2. Pocket Brain also leads on iOS requirement (14.0 vs 17.0). Second Brain's advantage is ads (none vs shown). On price, update cadence 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
Both are free to download. Second Brain sells 2 in-app purchases, starting at $4.99 per month. Pocket Brain asks for nothing beyond the download.
Pocket Brain ships an update every 8 days, Second Brain every 9 days. The most recent releases landed on September 28, 2026 and October 10, 2026 respectively.
| Parameter | Pocket Brain | Second Brain |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 8 days — better | Every 9 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 44 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | MIGUEL ALVAREZ LESMES | Liwei Xie |
In-app purchases
Pocket Brain
No in-app purchases
Second Brain
- Second Brain Pro3 Days trial$4.991 Month
- Second Brain Pro7 Days trial$39.991 Year









