Oops! AI Memory Assistant vs Second Brain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oops! AI Memory Assistant
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Oops! transforms how you remember. It's not just a note-taking app—it's your intelligent memory consultant that prevents those "I forgot!" moments before they happen. NEVER MISS THE CONNECTIONS - AI automatically maps relationships between people and conversations - Recall who said what, when, and in what context - Navigate your social and professional network with complete confidence - See the full picture when relationships between memories matter YOUR INTELLIGENT CONSULTANT - Combines advanced AI with your personal context - Goes beyond storage to provide real answers - Understands your needs and responds intelligently INSTANT MEMORY RECALL - Ask questions in plain language, get precise answers - Find any conversation, thought, or detail immediately - No more digging through endless notes - Your entire memory accessible in seconds EFFORTLESS CAPTURE - Speak naturally—AI transcribes with accuracy - Type messages in your own words - Automatic organization and categorization - Zero friction between thinking and remembering SMART ORGANIZATION - Calendar integration for visual task management - Context-aware reminders that understand priorities - Automatic categorization based on content - Transform chaos into clarity - Industry-standard encryption and secure cloud storage - Sign in with Apple, Google, Facebook, or email - Export or delete everything anytime - Your memories stay yours—no ads, no tracking Stop having "Oops!" moments. Start remembering everything that matters. Perfect for professionals managing complex relationships, students tracking coursework and ideas, or anyone tired of forgetting important details from their daily life. Terms of Use: https://oopsai.app/termsofuse Privacy Policy: https://oopsai.app/privacypolicy
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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The AI-powered journal that remembers everything. Capture thoughts by voice or text — AI organizes, connects, and recalls your memories so nothing is ever lost. Second Brain models how your mind actually works. Every memory is classified into three layers — instant thoughts, short-term plans, and long-term knowledge — then linked, reflected on, and surfaced exactly when you need it. CAPTURE IN SECONDS Type a thought or press and hold to speak. AI automatically classifies each memory, extracts tags, and generates a summary. No folders. No manual sorting. Just capture and move on. EXPLORE YOUR MEMORIES Ask anything: "What did I decide about the project?" or "What did Sarah say last week?" AI searches across all your memories using meaning — not just keywords — and weaves relevant ones into a clear, contextualized answer. PEOPLE MEMORY Create cards for the people in your life. Track what they said, shared experiences, meeting notes, and to-dos. Never forget a birthday, a promise, or a conversation again. WEEKLY REFLECTIONS Every week, AI reviews your memories, finds recurring themes, spots growth areas, and offers a concrete suggestion — like a thoughtful friend reading your journal. DISCOVER CONNECTIONS AI builds a knowledge graph across your memories, revealing patterns and links you never noticed. Watch your ideas form constellations over time. VOICE CAPTURE Press and hold to speak. Real-time transcription fills your memory instantly. Switch between English and Chinese with one tap. Perfect for capturing thoughts on the go. KEY FEATURES - Three-layer memory system inspired by cognitive science - AI classification, tagging, and summarization - Semantic search — find memories by meaning - Memory strength visualization with Ebbinghaus forgetting curve - People cards with relationship tracking - Daily, weekly, and monthly AI reflections - Voice input with real-time transcription - Theme clusters that reveal your thinking patterns - Memory connection graph - iCloud sync across devices - Full data export (JSON + Markdown) - Works offline — core features need no internet - Privacy-first: your data stays on your device SUBSCRIPTION Second Brain is free to use with daily limits. Upgrade to Pro for: - 20 memory explorations per day - Deep weekly and monthly reflection reports - Memory connection graph - Theme discovery clusters - Unlimited captures, people cards, and OCR - iCloud sync and data export Free 3-day trial available. Cancel anytime. PRIVACY Your memories are stored locally on your device. AI features use the Anthropic Claude API for processing — no other third party ever sees your data. Optional iCloud sync uses your personal Apple account. We never collect, store, or sell your information. Terms of Use: https://smartkiitos.com/secondbrain/terms/ Privacy Policy: https://smartkiitos.com/secondbrain/privacy/
Screenshots
Verdict
The clearest difference is update cadence: Oops! AI Memory Assistant at every 2 days against Second Brain's weekly. Oops! AI Memory Assistant also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases 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. Oops! AI Memory Assistant sells 5 in-app purchases, starting at $0.99 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.
Oops! AI Memory Assistant ships an update every 2 days, Second Brain weekly. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.
| Parameter | Oops! AI Memory Assistant | Second Brain |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 53 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Necati Bora Gurel | Liwei Xie |
In-app purchases
Oops! AI Memory Assistant
- Starter$0.991 Month
- Regular$3.991 Month
- Power$6.991 Month
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- Heavy$12.991 Month
- +50 interactions$0.99
Second Brain
- Second Brain Pro3 Days trial$4.991 Month
- Second Brain Pro7 Days trial$39.991 Year





