DailyMark vs ココロnote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DailyMark
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A diary that converses with the past. DailyMark is not a social feed and not a blog. The words here are not meant to be shown to anyone. They keep the facts that existed only in that moment, for the self yet to come. The moment you brace yourself to keep a diary, you start erasing the thoughts that embarrassed you, searching only for the good memories, and wearing yourself out trying to recall what you were too busy to write down last week. This app does not allow that. The immaturity, the hesitation, the contradiction — each is engraved as the reality of that moment. So a record can be kept only as that same day's entry, and once engraved it can be neither edited nor deleted. This is not just a diary. It is a log that keeps the traces of change, so the future you can converse with it. [How a record works] - Text only (no photo, no video, no location) - Up to 400 characters per record - A URL may be included (URLs do not count toward the limit) - No editing, no deletion [Records per day] - Free: twice a day - Pro: five times a day (the same during the 14-day trial) This is not a place to write a great deal. It is a place to record how today, and how now, really was. [Asking your past self] Pose a question such as "What have I been worried about lately?" or "A year ago, what was on my mind?" and the AI reads back through your past records and answers in the voice of who you were then. - Free: 5 times in total - Pro: up to 30 times a month [A monthly reflection (Pro)] On Pro, the AI reads back over a past month's records and returns the recurring themes, the signs of change, and the lingering tone in a short passage. [The color of feeling] Each record's text is read for its emotional tendency, based on the circumplex model of affect, and kept quietly on the calendar as the color of that day. Looking back across time, a restless season or a calm one comes through, letting you review your past for yourself. [Exporting records (Pro)] Your own records can be exported at once in three formats — JSON, Markdown, and CSV — and saved through the share sheet (up to 3 times a month). [Privacy] - No ads, no third-party tracking - Records are not used to train AI (assured by the OpenAI and Anthropic API terms) - Each record is visible only to its author (Row Level Security) - Deleting the account removes the data permanently (within 30 days, with no recovery) [Requirements] - iOS 15 or later - iPhone only (iPad and Mac are not supported) - Japanese and English (following the device language) [Subscription] - DailyMark Pro: a monthly subscription, auto-renewing (see App Store for local pricing) - Cancellation is handled in the standard iOS Subscriptions settings - Pro features remain available through the paid period [Support and legal] For questions: kokujitsuki@five-birds.com Privacy Policy: https://five-birds.com/kokujitsuki/privacy Terms of Service: https://five-birds.com/kokujitsuki/terms Specified Commercial Transactions Act notice: https://five-birds.com/legal/tokushoho To keep, for the future self, the feeling and the thought and the hesitation that exist only in this moment. Not a life smoothed into order, but the process of change itself, engraved as it happens.
ココロnote
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「ジブンnote」に続く、自分を知るアプリの第2弾! 「なぜか同じ失敗を繰り返してしまう…」「自分の感情のパターンを知りたい」 ココロnoteは、日々の出来事や思考を記録し、客観的に自分を見つめ直すためのメンタルセルフケアアプリです。 【こんな方におすすめです】 ・自分の思考のクセや感情の傾向を把握したい方 ・頭の中のモヤモヤを書き出して整理したい方 ・客観的な視点で自己分析を行いたい方 【ココロnoteの主な特徴】 ・簡単な記録体験: 思い立った時に、いつでも素早く頭の中を言語化。 ・思考のクセの可視化: 繰り返してしまう感情や行動のパターンに気づくきっかけを提供。 ・プライベートで安全な空間: あなただけのノートとして、安心して思考を吐き出せます。 日常のちょっとした違和感や感情の揺れは、自分自身を知る大切なサインです。 ココロnoteを使って、自分を客観的に観察し、楽しい毎日を過ごしていきませんか? 利用規約(EULA): https://fortunate-balaur-953.notion.site/note-3c86497aac5b800d9218ea2be26d461b プライバシーポリシー: https://fortunate-balaur-953.notion.site/note-3c86497aac5b802ea207e95bcb84fde9
Screenshots
Verdict
The clearest difference is update cadence: DailyMark at weekly against ココロnote's every 3 weeks. DailyMark also leads on iOS requirement (15.1 vs 18.6). On price, ads, 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
Both are free to download. DailyMark sells 1 in-app purchase, starting at $1.99 per month and ココロnote sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
DailyMark ships an update weekly, ココロnote every 3 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | DailyMark | ココロnote |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 40 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | five-birds.com | Yumiko Ishihara |
In-app purchases
DailyMark
- DailyMark ProMonthly14 Days trial$1.991 Month
ココロnote
- ココロnote Plus(1ヶ月)$0.991 Month
- ココロnote Plus(1年)$6.991 Year








