キーワードメモー忘れる、を価値に変える vs Second Brain Vault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
キーワードメモー忘れる、を価値に変える
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「覚えなくていい。必要な時に、引き出すだけ。」 キーワードメモは、情報をキーワードとセットで登録し、必要な時にキーワードで瞬時 に検索して引き出せるメモアプリです。 2ヶ月間検索されなかった情報は自動で削除。使わない情報は自然と消え、本当に必要な 情報だけが残ります。 【主な機能】 ・キーワードと情報をセットで登録 ・キーワード検索で瞬時に情報を引き出す ・2ヶ月未検索の情報を自動削除 ・10種類のテーマカラー 【プレミアム機能】 ・画像・音声の登録 ・削除前日の通知 ・広告の非表示 【最後の切り札】 ・3日間すべてのキーワードを閲覧できるパス ※いつか消えてしまいますが「20250911」のように日付をワードにして日記を書くこともできます。 ※登録後にキーワード、情報または両方の変更、削除は検索欄にキーワードを打ち込んだ後に右上のボタンからできます。 利用規約 https://www.apple.com/legal/internet-services/itunes/jp/terms.html プライバシーポリシー : https://doc-hosting.flycricket.io/kiwadomemo-privacy-policy/83067bc1-0903-44df-af56-ad4470129063/privacy
Second Brain Vault
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Second Brain Vault isn't another folder-organizing app. You just save — 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 • Save in one tap — a note, a photo, a voice memo, a PDF, or a web link. Anything, instantly, into your vault. • AI organizes it for you — 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. • Recall like a person — 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 — semantic meaning plus keywords plus recency — so it works even when you don't remember the exact words. • It grows with you — 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 • Home — today's and recent items, plus a one-line AI insight • Quick capture — five kinds: note, photo, audio, PDF, link • Natural-language Recall — hybrid semantic + keyword + recency ranking • Insights — top topics, save volume, Brain Level growth • Weekly Retrospective — an AI recap of your week of memories • Automatic categories & tags — 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 (₩6,600 / year): unlimited saves, iCloud backup & sync, weekly Retrospective history, and more. Lifetime (₩29,000, one-time): everything in Pro, forever, no renewal. You save it; Second Brain Vault remembers it. Drop in your first memory today. ■ Device requirements AI auto-organizing and semantic (meaning-based) search require an Apple Intelligence–capable device — 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. ■ 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
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Verdict
The clearest difference is iOS requirement: キーワードメモー忘れる、を価値に変える at 18.5 against Second Brain Vault's 26.0. On price and in-app purchases 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
Both are free to download. キーワードメモー忘れる、を価値に変える sells 3 in-app purchases, starting at $1.99 per month and Second Brain Vault sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | キーワードメモー忘れる、を価値に変える | Second Brain Vault |
|---|---|---|
| Price | Free | Free |
| Ads | — | No |
| In-app purchases | Yes | Yes |
| Devices | — | iPhone — better |
| Requires iOS | 18.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | atsuko imai | Byoungho Kim |
In-app purchases
キーワードメモー忘れる、を価値に変える
- 月額プレミアム$1.991 Month
- 年額プレミアム$9.991 Year
- プレミアム3日間パス$6.99
Second Brain Vault
- Second Brain Vault (Lifetime)$17.99
Questions
Is キーワードメモー忘れる、を価値に変える free?
Is Second Brain Vault free?
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