Comparison

Second Brain vs Orbit

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

Head to head
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/

About

Orbit

Features
Read full description

Write messy. Find the patterns later. Orbit is a calm place to dump every thought — work, life, half-formed ideas — and make sense of them later. Not a diary. Not a wellness app. A mind you can search. Most notes go somewhere to be forgotten. Orbit is built for the opposite: the more you write, the more it gives back. CAPTURE WITHOUT FRICTION Open Orbit and write. No folders to pick, no tags to invent, no blank-page ceremony. Get the thought down — from the app, the Share Sheet, or a Home Screen widget — and move on. ASK YOUR OWN MIND ANYTHING Later, ask Orbit a real question — "what have I been worried about lately?", "what did I decide about the launch?" — and get an answer drawn from everything you've written, alongside the entries it came from. FIND THE PATTERNS YOU'D MISS Orbit quietly surfaces the themes running through your thinking — the ideas you keep circling back to, the worries that recur — so you can see what's hard to notice one entry at a time. A WEEKLY LOOK BACK Each week, Orbit reflects your thinking back to you: what you focused on, what shifted, what's worth returning to. BUILT TO BE CALM One clear thing to do on every screen. A warm, editorial design that feels more like paper than a dashboard. No streaks, no badges, no guilt. PRIVATE BY DEFAULT Only you can see what you write. Orbit is a place for your real, unfiltered thinking. Write messy. Orbit finds the patterns later. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.useorbit.ink/privacy

Screenshots

Second Brain4 screens
Orbit4 screens

Verdict

The call

Second Brain and Orbit are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 and Orbit sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Second Brain ships an update weekly, Orbit every 9 days. The most recent releases landed on September 8, 2026 and September 22, 2026 respectively.

ScorecardNo meaningful differences
Second Brain versus Orbit: the parameters behind the verdict, then further details
ParameterSecond BrainOrbit
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size12 MB16 MB
Age rating4+4+
DeveloperLiwei XieRuntime Labs LLC

In-app purchases

2 purchases

Second Brain

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

Orbit

Subscriptions2
  • Orbit Pro (Monthly)$4.991 Month
  • Orbit Pro (Yearly)$49.991 Year

Questions

Is Second Brain free?
Second Brain is free to download, with in-app purchases available.
Is Orbit free?
Orbit is free to download, with in-app purchases available.
Do Second Brain or Orbit have ads?
Neither Second Brain nor Orbit shows ads.
Which is updated more often, Second Brain or Orbit?
Second Brain ships an update weekly, and Orbit every 9 days. Most recently, Second Brain was updated on September 8, 2026 and Orbit on September 22, 2026.

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