Comparison

Second Brain Vault vs ntoday

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 Vault

Features
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Second Brain Vault isn't another folder-organizing app. You just save β€” the on-device AI files it for you and finds it back later when you ask in plain language. A private memory vault that lives entirely on your iPhone. We're all good at saving. The real question was always "where did I put that?" Second Brain Vault flips the order: you save, the AI organizes and recalls. HOW IT WORKS β€’ Save in one tap β€” a note, a photo, a voice memo, a PDF, or a web link. Anything, instantly, into your vault. β€’ AI organizes it for you β€” every saved item gets a title, a summary, a category, and tags, automatically. Photos are read with OCR, voice is transcribed, PDFs and links have their text extracted. β€’ Recall like a person β€” ask "that real-estate article I read last year," "the best cold-noodle place I saved," "the app idea I jotted last month," and it finds the right memory. It's hybrid retrieval β€” semantic meaning plus keywords plus recency β€” so it works even when you don't remember the exact words. β€’ It grows with you β€” Insights show your top topics and saving trends, and every week the AI writes a short Retrospective of what you saved. The more you save, the higher your Brain Level. WHAT'S INSIDE β€’ Home β€” today's and recent items, plus a one-line AI insight β€’ Quick capture β€” five kinds: note, photo, audio, PDF, link β€’ Natural-language Recall β€” hybrid semantic + keyword + recency ranking β€’ Insights β€” top topics, save volume, Brain Level growth β€’ Weekly Retrospective β€” an AI recap of your week of memories β€’ Automatic categories & tags β€” organized without you filing anything PRIVACY BY CONSTRUCTION Everything is processed on this iPhone. Because it uses Apple's on-device AI (Foundation Models), your notes, photos, voice and documents never leave the device. No account, no server, no ads, no tracking. The only time it uses the internet is to fetch the page of a web link you choose to save. APPLE INTELLIGENCE REQUIRED Auto-organizing, natural-language search, Insights and the Retrospective run on Apple-Intelligence-capable devices. On other devices you can still save and search by keyword; the AI features show an "Apple Intelligence required" state. START FREE, UNLOCK WHEN YOU NEED IT Free: up to 100 items, full on-device AI organizing & search on all 100, every capture type, Insights and Brain Level included. Pro (β‚©6,600 / year): unlimited saves, iCloud backup & sync, weekly Retrospective history, and more. Lifetime (β‚©29,000, one-time): everything in Pro, forever, no renewal. You save it; Second Brain Vault remembers it. Drop in your first memory today. β–  Device requirements AI auto-organizing and semantic (meaning-based) search require an Apple Intelligence–capable device β€” iPhone 15 Pro / 15 Pro Max and iPhone 16/17 or later, iOS 26 or later. On other devices, saving and keyword search still work fully. Everything is processed on-device; nothing is ever sent off your iPhone. β–  Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://blue-code.github.io/legal/second-brain-vault/privacy.en.html

About

ntoday

Features
Read full description

Just write it. ntoday takes it from there. Throw whatever's in your head at it, however messy. The next morning it puts back just the parts you need to hold on to. It doesn't tell you to get organised. It keeps things organised for you. β–  Writing takes no thought One line goes to three places at once β€” today's list, your appointments, and search. Hold οΌ‹ and speak. You get the transcript and the original recording, kept together. Photos go in as they are. β–  It brings things back before you go "oh β€” right" Writing it down and never looking again is the real problem. So it looks for you. Β· 7:30 in the morning β€” only what's left over and what's due today. Nothing due, nothing rings Β· 8:00 at night β€” the unfinished ones, once, quietly Β· Tick things off from a widget or your Apple Watch without opening the app β–  What you wrote sorts itself To-dos, appointments, where you put it, shopping, things that repeat. No boxes to set up. Writing is enough. If something lands in the wrong box, one tap on "not this" takes it out β€” and it remembers the shape. β–  One word pulls it back out Type "dentist" and everything you wrote about the dentist comes back on a single sheet. When it was, what it cost, what they told you. β–  When something repeats, it gets a crayon mark Write "sick again" across a few days and circles appear on a calendar. It isn't a feature you switch on. The notes become the tracker by themselves. Export it as one page to show a doctor or a vet. β–  All of it on this device There is no server. There never will be. What you write does not leave the phone. No account, no sign-in. iCloud sync is off until you turn it on, and even then it only goes to your own private iCloud. Codes and passwords you jot down are hidden from summaries, previews, widgets and the lock screen. β–  ntoday Plus β€” buy once, keep it Four more boxes (money, people, codes, scraps), iCloud sync, three months of tracker history with its widget, and three paper colours. Not a subscription. No ads. The free app has no limit on how much you write, and search, the morning and evening nudges, widgets, Apple Watch, export and the archive are **always free**. Built for people who write things down and forget them. English Β· ν•œκ΅­μ–΄ Β· ζ—₯本θͺž

Screenshots

Second Brain Vault4 screens
ntoday4 screens

Verdict

The call

The clearest difference is device support: ntoday at 3 against Second Brain Vault's 1. On price, ads, in-app purchases and iOS requirement 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. Second Brain Vault sells 1 one-off in-app purchase and ntoday sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Β· 5 level
Second Brain Vault versus ntoday: the parameters behind the verdict, then further details
ParameterSecond Brain Vaultntoday
PriceFreeFree
Update frequencyβ€”Every 5 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, Apple Watch β€” better
Requires iOS26.026.0
Further details β€” not scored
Size2 MB19 MB
Age rating4+4+
DeveloperByoungho Kimxiah lee

In-app purchases

1 purchases

Second Brain Vault

One-time1
  • Second Brain Vault (Lifetime)$17.99
1 purchases

ntoday

One-time1
  • Plus$12.99

Questions

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

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