Comparison

#Sparks vs Second Brain

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

Head to head
About

#Sparks

Features
Read full description

Transform your thoughts into organized conversations with Sparks - the note-taking app that thinks like you do. Sparks revolutionizes how you capture and organize ideas by combining the familiar chat interface you love with powerful hashtag organization. Simply talk to your hashtags and get your chaotic sparks of inspiration automatically organised into usable notes! HASHTAG MAGIC Add #tags anywhere in your notes Talk to your tags. Notes automatically organize by topics Multiple tags per note for flexible organization No rigid folder structures - just natural tagging CONVERSATION-STYLE INTERFACE Notes appear as chat bubbles - familiar and intuitive Capture thoughts as quickly as sending a message Chronological timeline keeps your thinking process clear Add images just like in your favorite messaging apps SMART SEARCH & DISCOVERY Search both content and hashtags instantly Related tag suggestions help you discover connections Filter by multiple tags to find exactly what you need Quick access to all your organized conversations MOBILE-FIRST DESIGN Optimized for quick note capture on-the-go Swipe actions for easy editing and deletion Long-press to select multiple notes Responsive design that works on any device EFFORTLESS ORGANIZATION No manual filing or complex folder structures Tags automatically create topic-based conversations View all notes in #all or filter by specific interests Recent and frequently used tags for quick access Perfect for: Students organizing study notes by subject Professionals capturing meeting insights Creatives collecting inspiration and ideas Anyone who wants structured notes without the hassle Why Sparks? Traditional note apps force you to think about organization before you capture your thoughts. Sparks lets you focus on your ideas first - the organization happens naturally through hashtags. It's like having a personal assistant who knows exactly where everything belongs. Download Sparks today and experience note-taking that adapts to how you actually think.

About

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.

Highlights
  • 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)
Features
Read full description

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

#Sparks2 screens
Second Brain4 screens

Verdict

The call

The clearest difference is in-app purchases: #Sparks at none against Second Brain's 2. #Sparks also leads on update cadence (every 3 days vs weekly) and device support (3 vs 1). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Second Brain sells 2 in-app purchases, starting at $4.99 per month. #Sparks asks for nothing beyond the download.

UpkeepUpdate frequency

#Sparks ships an update every 3 days, Second Brain weekly. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

Scorecard4 real differences · 6 level
#Sparks versus Second Brain: the parameters behind the verdict, then further details
Parameter#SparksSecond Brain
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 days — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size51 MB12 MB
Age rating4+4+
DeveloperJAKUB ZAJĄC DORADCA PODATKOWYLiwei Xie

In-app purchases

None

#Sparks

No in-app purchases

2 purchases

Second Brain

Subscriptions2
  • Second Brain Pro3 Days trial$4.991 Month
  • Second Brain Pro7 Days trial$39.991 Year

Questions

Is #Sparks free?
#Sparks is free to download, with no in-app purchases.
Is Second Brain free?
Second Brain is free to download, with in-app purchases available.
Do #Sparks or Second Brain have ads?
Neither #Sparks nor Second Brain shows ads.
Which is updated more often, #Sparks or Second Brain?
#Sparks ships an update every 3 days, and Second Brain weekly. Most recently, #Sparks was updated on September 19, 2026 and Second Brain on September 8, 2026.

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