Comparison

ToDoLinks 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

ToDoLinks

Features
Read full description

ToDoLinks turns the articles you save into a simple reading board you actually finish. Save any link in one tap from the share sheet. Each save gets an instant AI summary and tags, so you know what's worth your time before you read it. Move cards across your To Do / In Progress / Done board as you go — and finally clear the backlog. WHY TODOLINKS • AI summary on every save — know the gist before you commit • A reading board, not a bookmark graveyard • Read offline — your articles are cached on device • Listen aloud — text-to-speech for your commute or run • AI search — find a saved article by describing it in your own words • Weekly digest — a once-a-week nudge with your quickest unread reads PRICING Free to start. Pro is $1.99/month for unlimited saves and unlimited AI search — a fraction of the price of other read-it-later apps. Save it. Actually read it. Terms of Use (EULA): https://todolinks.app/terms Privacy Policy: https://todolinks.app/privacy

About

Second Brain

Features
Read full description

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 • Speak or type when one thought contains several intentions • Attach an existing image or take a photo without leaving the capture • Turn things you need to do into Apple Reminders • Put meetings, deliveries, and passive dates into Apple Calendar • Create, append to, or update the right Markdown page • 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 • Tasks live in Apple Reminders • Events live in Apple Calendar • Context stays in ordinary Markdown files • Use the recommended iCloud Drive folder, another Files folder, or an Obsidian vault • 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

Screenshots

ToDoLinks4 screens
Second Brain4 screens

Verdict

The call

The clearest difference is in-app purchases: Second Brain at none against ToDoLinks's 1. ToDoLinks's advantage is iOS requirement (15.1 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

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

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

Both are free to download. ToDoLinks sells 1 in-app purchase, starting at $1.99 per month. Second Brain asks for nothing beyond the download.

UpkeepUpdate frequency

ToDoLinks ships an update every 6 days, Second Brain every 5 days. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

Scorecard2 real differences Ā· 4 level
ToDoLinks versus Second Brain: the parameters behind the verdict, then further details
ParameterToDoLinksSecond Brain
PriceFreeFree
Update frequencyEvery 6 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better18.0
Further details — not scored
Size25 MB17 MB
Age rating4+4+
DeveloperOri ShalomAleksandr Pustotin

In-app purchases

1 purchases

ToDoLinks

Subscriptions1
  • ToDoLinks Pro$1.991 Month
None

Second Brain

No in-app purchases

Questions

Is ToDoLinks free?
ToDoLinks is free to download, with in-app purchases available.
Is Second Brain free?
Second Brain is free to download, with no in-app purchases.
Do ToDoLinks or Second Brain have ads?
Neither ToDoLinks nor Second Brain shows ads.
Which is updated more often, ToDoLinks or Second Brain?
ToDoLinks ships an update every 6 days, and Second Brain every 5 days. Most recently, ToDoLinks was updated on October 10, 2026 and Second Brain on October 1, 2026.

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