Comparison

Sage 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

Sage

Features
Read full description

Sage is a place to capture a thought and get back to what you were doing. Type it, dictate it, or share it from another app. Add photos and files to keep the context together. Your entries stay in one chronological feed. CAPTURE WITHOUT THINKING • Save text, photos, files and links in one entry • Share content to Sage from other apps • Save notes offline; AI processing resumes when you reconnect • Dictate in English with on-device speech recognition SEE YOUR THOUGHTS TAKE SHAPE • Sage categorizes entries after you save them • One entry can belong to more than one category • Topic threads collect the relevant entries automatically • Edit entries and correct their categories at any time • Create personal categories for your topics and projects ANALYSE WHEN YOU'RE READY • Tap Analyse to generate an AI insight for each thread with new entries • Each analysis considers new entries and earlier AI insights, so progress builds over time • Read the latest AI insight at the top of a thread and revisit source entries below it in date order YOUR NOTES STAY YOURS • Keep your notes on your device and sync them through your iCloud • Sign in with Apple is required • Content needed for categorization and analysis is sent securely through the Sage backend SAGE PLUS A Sage Plus subscription is required to use the app. It includes capture, categorization, analysis and access to every thread. Sage Plus costs $59.99/year or $8.99/month in the U.S. Eligible new subscribers can get a 3-day free trial. Prices may vary by region. Payment is charged to your Apple ID account at confirmation of purchase or after the free trial, where applicable. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings → Apple ID → Subscriptions. Terms of Use: https://sagebrain.tech/terms/ Privacy Policy: https://sagebrain.tech/privacy/ Refund Policy: https://sagebrain.tech/refund/ Built for people whose attention is already full.

About

Second Brain

Features
Read full description

Your brain was built to think, not to remember. SecondBrain turns any spoken thought into a filed, titled, dated record in about three seconds. No folders. No tagging. No deciding where it goes. Just talk. Your second brain does the rest. SUBSCRIPTION REQUIRED Second Brain requires an auto-renewable subscription ($7.99 per week or $29.99 per month). Every feature described below is included with an active subscription - there are no extra purchases. HOW IT WORKS Hold the button and say what's on your mind - in the car, on a walk, halfway out the door. SecondBrain transcribes it, works out what you meant, and files it in the right project with the right due date. Then it buzzes back to confirm. "Call the accountant next Friday about the trust" becomes a task, in Client Work, due Friday. You never picked a project. You never set a date. EVERYTHING IN ONE PLACE • Today - your daily brief, what's due, and what's coming up next • Tasks - organized by project and due date, automatically • Calendar - tasks and events together in one month view • Brain - every note, photo, link and file you've ever captured • Projects - see what's active and what's gone quiet CAPTURE ANYTHING Voice, typed notes, photos, links, files. It all lands in the same place and gets sorted for you. Anything the app isn't confident about goes to a review inbox instead of being filed wrong - so nothing is ever lost or buried in the wrong folder. ASK YOUR BRAIN Get answers from everything you've captured. Your notes stop being a graveyard and start being something you can actually use. PRIVATE BY DESIGN Your content lives in a private database. Nothing is shared, nothing is public, and your notes are never sold or used to train AI models. Export or delete everything at any time. SUBSCRIPTION SecondBrain requires a SecondBrain Pro subscription - $7.99/week or $29.99/month. All features shown, including voice capture, AI filing, the Daily Brief, and instant search, are part of Pro. Payment is charged to your Apple ID; subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://second-brain.app/terms Privacy Policy: https://second-brain.app/privacy

Screenshots

Sage4 screens
Second Brain4 screens

Verdict

The call

The clearest difference is iOS requirement: Second Brain at 18.0 against Sage's 26.0. On price, ads, in-app purchases 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. Sage sells 2 in-app purchases, starting at $8.99 per month and Second Brain sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Ā· 5 level
Sage versus Second Brain: the parameters behind the verdict, then further details
ParameterSageSecond Brain
PriceFreeFree
Update frequency—Every 5 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad — better
Requires iOS26.018.0 — better
Further details — not scored
Size21 MB55 MB
Age rating17+4+
DeveloperMaksim ErmolaevTerra Innovations

In-app purchases

2 purchases

Sage

Subscriptions2
  • Sage Plus Monthly3 Days trial$8.991 Month
  • Sage Plus Yearly3 Days trial$59.991 Year
2 purchases

Second Brain

Subscriptions2
  • Weekly$7.997 Days
  • Monthly$29.991 Month

Questions

Is Sage free?
Sage is free to download, with in-app purchases available.
Is Second Brain free?
Second Brain is free to download, with in-app purchases available.
Do Sage or Second Brain have ads?
Neither Sage nor Second Brain shows ads.

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