Comparison

Second Brain vs 더닝

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

Head to head
About

Second Brain

Features
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Manage notes, to-dos, and your schedule in one app. Capture thoughts as notes, actions as to-dos, and anything with a date on the calendar. No more hopping between apps. ■ Notes Write fast, organize later. Sort into folders and find anything with search. Share only the notes you choose via a link, and unshare with a single tap. ■ To-Dos Set due dates and repeat rules. See what's left with D-Day countdowns, and group tasks by category. ■ Calendar See to-dos and events on the same screen. Switch between month and week views to check how full your week is. ■ Widgets Check today's tasks from your Home Screen and Lock Screen. See what's left without opening the app. ■ Notifications Get notified as deadlines approach. Start the day with a morning briefing and wrap up with a daily summary. ■ AI Organize Pull action items out of long text. Turn copied text into to-dos. Gather past records into a retrospective. AI features are free up to 3 times per month. To use more, connect your own AI API key. ■ Same content on every device Notes written on iPhone open on the web too. Sign in once and your content follows you across devices. ■ Privacy AI features only process text you explicitly send. See the privacy policy for details. https://docs.ainote.dev/legal/privacy

About

더닝

This app simplifies note-taking by allowing users to jot down thoughts and attach files. It automatically extracts titles, tasks, and deadlines, and provides timely reminders. Notes can be synced to your calendar and are stored locally for privacy.

Highlights
  • Effortless note-taking with AI organization
  • Automatic title, task, and deadline extraction
  • Intelligent reminders for deadlines and inactive notes
  • Calendar integration for deadlines
  • Local storage with optional cloud sync
  • Customizable reminder settings
Features
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쌓기만 하세요. 챙기는 건 더닝이 합니다. 할 일이 떠오를 때마다 앱을 열고, 어디에 넣을지 고르고, 제목을 붙이고, 날짜를 정하고… 그 과정이 번거로워서 결국 안 적게 됩니다. 더닝은 그냥 적기만 하면 됩니다. ■ 적는 순간 끝 생각나는 대로 한 줄 적고 저장하세요. 사진이나 서류를 붙여도 됩니다. 저장은 언제나 먼저 끝나고, 정리는 뒤에서 이어집니다. ■ 제목도, 할 일도, 기한도 대신 뽑아줍니다 "다음 주 수요일까지 관리비 이체하기"라고만 적으면 제목과 해야 할 일, 기한까지 정리됩니다. 사진 속 글자도 읽습니다. ■ 잊을 만하면 챙겨줍니다 기한이 다가오면 알려주고, 오래 손대지 않은 메모도 조용히 다시 꺼내줍니다. 재촉이 아니라 안부에 가깝게. ■ 캘린더에도 올려둡니다 확인한 기한은 iOS 캘린더 일정이 됩니다. 원하지 않으면 설정에서 끄면 됩니다. ■ 로그인 없이, 이 아이폰 안에서 회원가입도 로그인도 없습니다. 메모는 기기에 저장되고, 정리를 위해 보내는 순간 외에는 밖으로 나가지 않습니다. 그마저도 설정에서 끌 수 있습니다. ■ 챙김 기준은 직접 정합니다 기한을 며칠 전부터 챙길지, 조용한 메모를 며칠 만에 꺼낼지, 알림을 몇 시에 받을지 모두 조절할 수 있습니다. 알림 전체를 끄는 것도 됩니다. 정리 결과는 자동 추정이라 틀릴 수 있습니다. 중요한 일정은 직접 확인해 주세요. 이용약관: https://dunning-note-proxy.tukkboy.workers.dev/terms 개인정보처리방침: https://dunning-note-proxy.tukkboy.workers.dev/privacy 더닝 플러스는 월 2,900원 자동 갱신 구독입니다. 첫 1개월은 무료이며, 구독은 만료 24시간 전까지 해지하지 않으면 자동으로 갱신됩니다. 해지는 iPhone 설정 > Apple 계정 > 구독에서 언제든 할 수 있습니다.

Screenshots

Second Brain4 screens
더닝4 screens

Verdict

The call

The clearest difference is ads: Second Brain at none against 더닝's shown. 더닝's advantage is update cadence (every 5 days vs monthly) and iOS requirement (17.0 vs 26.0). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Second Brain ships an update monthly, 더닝 every 5 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 5 level
Second Brain versus 더닝: the parameters behind the verdict, then further details
ParameterSecond Brain더닝
PriceFreeFree
Positive reviews—80.0% of reviews
Update frequencyMonthlyEvery 5 days — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Freemium
DevicesiPhone, iPad — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size37 MB25 MB
Age rating4+4+
DeveloperDcodeJIHO PARK

In-app purchases

None

Second Brain

No in-app purchases

None

더닝

No in-app purchases

Questions

Is Second Brain free?
Second Brain is free to download, with no in-app purchases.
Is 더닝 free?
더닝 is free to download, with no in-app purchases.
Do Second Brain or 더닝 have ads?
더닝 shows ads; Second Brain does not.
Which is updated more often, Second Brain or 더닝?
Second Brain ships an update monthly, and 더닝 every 5 days. Most recently, Second Brain was updated on October 31, 2026 and 더닝 on November 10, 2026.

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