Comparison

Second Brain vs Aganta

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

Head to head
About

Second Brain

Features
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Speak or type one messy thought. Second Brain separates every intention, creates the right Apple Reminder, Calendar event, or Markdown update, and shows exactly what changed. Your tasks stay in Apple Reminders, your dates stay in Apple Calendar, and your knowledge stays in ordinary Markdown files you control. VOICE TO ACTION β€’ Speak or type when one thought contains several intentions β€’ Attach an existing image or take a photo without leaving the capture β€’ Turn things you need to do into Apple Reminders β€’ Put meetings, deliveries, and passive dates into Apple Calendar β€’ Create, append to, or update the right Markdown page β€’ Keep dates and times exactly as you expressed them SEE AND CONTROL EVERY CHANGE Each capture keeps your words and a receipt for every result. Review destinations, confirm pending events, retry failures, repair exact duplicates, or undo supported changes. YOUR TOOLS, NOT ANOTHER SILO β€’ Tasks live in Apple Reminders β€’ Events live in Apple Calendar β€’ Context stays in ordinary Markdown files β€’ Use the recommended iCloud Drive folder, another Files folder, or an Obsidian vault β€’ Capture from Siri, Shortcuts, widgets, Control Center, the share sheet, or the Action Button KNOWLEDGE WITH SOURCES Ask questions about your pages and inspect linked sources. Search in the app, Siri, or on-device Spotlight. Projects keep notes, pages, reminders, events, and recent activity together. MANAGED INTELLIGENCE Managed Intelligence is an optional monthly or annual App Store subscription for hosted OpenAI processing. The secure service verifies access and limits, stores no request bodies, and deletes temporary results after acknowledgement or within 24 hours. EXTERNAL AI PROVIDER CONNECTIONS Settings > AI & Providers can connect an existing Anthropic or OpenAI developer account as an external service. Second Brain does not sell provider access or include provider sign-up, pricing, or purchase links. The credential stays in Apple Keychain, and requests go directly to the selected provider under that provider's terms. PRIVATE BY DESIGN Before any personal data is sent to an AI service, Second Brain names the recipients and data categories and asks for permission. Choose Use Without AI to keep all AI transmission disabled while local capture, notes, reminders, events, and search remain available. Managed requests go to Second Brain's Cloudflare-hosted service and then OpenAI. Personal-key text requests go directly to OpenAI or Anthropic. Permission can be reviewed or withdrawn in Settings > Privacy & AI. Voice can be transcribed fully on device with Apple Speech, so audio never uploads, or through an optional permission-gated online route. When Online transcription is selected, recordings go to OpenAI directly or through the managed Cloudflare route. Failed or cancelled online uploads preserve the local recording for retry. Photos stay local unless the user includes them in an authorized AI request. There is no Second Brain login, advertising, or tracking. Firebase Analytics and Crashlytics receive content-free product or diagnostic data, never captures, transcripts, audio, chat, files, titles, keys, or model content. The public What Gets Sent view and content-free privacy ledger show the applicable routes and transfers. SUBSCRIPTION TERMS Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. Manage or cancel subscriptions in your Apple Account settings. Any trial converts to the selected paid plan unless canceled before the trial ends. Terms of Use: https://second-brain-in-motion.heartsker.chatgpt.site/terms Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://second-brain-in-motion.heartsker.chatgpt.site/privacy

About

Aganta

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Aganta is your boat's pocket captain. When something goes wrong, type your question; Aganta answers from your equipment's own manual, with page references, step by step. Manage your boat, equipment, maintenance calendar and documents in one place. See weather and sea conditions for your location. HOW IT WORKS Add your boat and equipment once. Aganta recognises your boat by brand and model. When you have a problem, describe it. Aganta explains what to check and what steps to take, clearly and plainly. Instead of generic advice, wherever possible it answers from your equipment's own manual β€” with page references. MANAGE YOUR BOAT IN ONE PLACE Fault diagnosis: Get step-by-step, source-backed answers specific to your equipment. Maintenance calendar: Track upcoming service in the calendar and see days remaining at a glance. Boat and equipment: Register your engine, generator, electronics and other gear. Boats and equipment not in the catalogue can be added too. Weather and sea: Current weather and sea conditions for your location. Nine languages: Turkish, English, German, French, Italian, Spanish, Greek, Croatian and Russian. AGANTA PLUS Photo diagnosis: Take a photo of the fault or the equipment and let Aganta take a look. Technical diagrams: View schematics and diagrams for your equipment. Document vault: Keep your registry, insurance, Blue Card and other papers in one place. Chat history: Return to earlier conversations and pick up where you left off. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Second Brain4 screens
Aganta4 screens

Verdict

The call

The clearest difference is in-app purchases: Second Brain at none against Aganta's 2. On price, update cadence, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Aganta sells 2 in-app purchases, starting at $9.99 per month. Second Brain asks for nothing beyond the download.

UpkeepUpdate frequency

Second Brain ships an update every 5 days, Aganta every 3 days. The most recent releases landed on October 25, 2026 and October 1, 2026 respectively.

Scorecard1 real difference Β· 5 level
Second Brain versus Aganta: the parameters behind the verdict, then further details
ParameterSecond BrainAganta
PriceFreeFree
Update frequencyEvery 5 daysEvery 3 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.018.0
Further details β€” not scored
Size17 MB39 MB
Age rating4+4+
DeveloperAleksandr PustotinKodneo OU

In-app purchases

None

Second Brain

No in-app purchases

2 purchases

Aganta

Subscriptions2
  • Plus Monthly$9.991 Month
  • Plus Yearly$99.991 Year

Questions

Is Second Brain free?
Second Brain is free to download, with no in-app purchases.
Is Aganta free?
Aganta is free to download, with in-app purchases available.
Do Second Brain or Aganta have ads?
Neither Second Brain nor Aganta shows ads.
Which is updated more often, Second Brain or Aganta?
Second Brain ships an update every 5 days, and Aganta every 3 days. Most recently, Second Brain was updated on October 25, 2026 and Aganta on October 1, 2026.

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