MyMemo vs Second Brain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyMemo
This AI-powered tool helps you manage and organize your personal knowledge by collecting digital content from various online sources. It uses AI to extract insights, answer your questions, and provide AI-driven recaps to stimulate learning and understanding.
- Collects digital content from internet sources
- AI-driven content analysis and insight extraction
- Answers user queries about collected knowledge
- AI-generated recaps for reflective learning
- Natural language chat for information retrieval
- Organized and secure knowledge database
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MyMemo AI is an AI-driven tool designed to manage and organize personal knowledge. It allows users to collate digital content from different internet sources including articles, videos, links, screenshots, and files into a single, accessible platform. This tool strategically harnesses AI technology to process the collected content, identify key data points, and extract relevant insights. These insights contribute to a personalized knowledge database, ready to answer user queries and stimulate their understanding. Using its AI capabilities, MyMemo can generate quick responses to user questions, removing the need for manual organization. Content understanding and extraction is a core feature of MyMemo, where AI not only stores but also understands and analyzes user content. This deep analysis and key information extraction transforms the uploaded content into a treasure trove of accessible knowledge. MyMemo also encourages reflective learning through AI-driven recaps which help users revisit key concepts and ideas, offering new perspectives and connections that may have been missed initially. MyMemo can also facilitate a natural language chat querying information about the user's knowledge base, thereby enhancing the accessibility of information. With an emphasis on secure, organized, and efficient knowledge management, MyMemo is equipped with features to ease the process of retrieving information, making it a comprehensive knowledge database. [Automatic Subscription Service Description] 1. Subscription Services: a) MyMemo AI Pro Plan b) MyMemo AI Ultra Plan 2. Subscription Prices: a) MyMemo AI Pro Version: Continuous monthly product for $9.9 /month, continuous annual product for $70.99 /year b) MyMemo AI Ultra Version: Continuous monthly product for $19.9 /month, continuous annual product for $142.9 /year 3. Payment: The user's payment will be charged to their iTunes account after confirmation of purchase 4. Auto-Renewal: The Apple iTunes account will be charged 24 hours before expiration, and the subscription period will extend by one cycle after successful payment 5. Service Cancellation: You can manage the automatic subscription service by going to "Settings" on your iPhone --> "iTunes Store and App Store" --> Click "Apple ID", select "View Apple ID", enter the "Account Settings" page, click "Subscriptions". To cancel, turn off the service 24 hours before the end of each billing cycle. No charge will be made within 24 hours before expiration. 6. User Agreement: https://www.mymemo.ai/user-agreement 7. Privacy Policy: https://www.mymemo.ai/privacy-policy
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 monetization model: Second Brain at freemium against MyMemo's subscription. Second Brain also leads on review sentiment (100% vs 67%). MyMemo's advantage is ratings volume (150 vs 2) and device support (3 vs 1). On price, rating, update cadence and ads 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. MyMemo sells 4 in-app purchases, starting at $5.90 per month and Second Brain sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for MyMemo against 4.5 for Second Brain. That said, the two scores are not equally well evidenced: MyMemo has 150 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 67% of MyMemo's written reviews are positive against 100% of Second Brain's.
MyMemo ships an update weekly, Second Brain every 9 days. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.
| Parameter | MyMemo | Second Brain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (150 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 150 — better | 2 |
| Update frequency | Weekly — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 47 MB | 12 MB |
| Age rating | 12+ | 4+ |
| Developer | MyMemo AI | Liwei Xie |
Customer experience
MyMemo
Second Brain
In-app purchases
MyMemo
- Monthly Subscription for Pro$5.901 Month
- Monthly Subscription for Ultra$11.901 Month
- Annual Subscription for Pro$44.991 Year
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- Annual Subscription for Ultra$118.991 Year
Second Brain
- Second Brain Pro3 Days trial$4.991 Month
- Second Brain Pro7 Days trial$39.991 Year









