B.Notes/Chat vs HASH
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
B.Notes/Chat
This app allows you to jot down ideas in a chat-like format, simulating a conversation with yourself. Customize your brainstorming partner with cute animal icons and organize notes with folders and tags. Share your thoughts easily via AirDrop.
- Chat-style note-taking
- Solo brainstorming with personas
- Cute animal icons for personas
- Folder and tag organization
- AirDrop sharing
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B.Notes is a simple application that records notes in a chat-like speech bubble. You can write out ideas that you come up with, and brainstorm by yourself. In solo brainstorming, you can set the persona as the peer you want to talk to. Key Features: - Cute animal icons for persona - Manages notes using folders and tags - Sends and receives notes via AirDrop
HASH
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Your own records, organized by hashes as you write. Hash doesn't split notes, events, and to-dos apart. Everything is a single record, and you add a date, a checkbox, or a reminder when you need it. Group records lightly with hashes (#) instead of folders, and turn the dial to switch between them. ■ Write right away • Type in the compose bar and save. Nothing to choose before you save. • When you write a date, Hash suggests it. Suggestions are applied only when you tap them. • Markdown editor: headings, lists, and checklists tidy themselves up as you type. • Share from other apps to save links and text instantly. ■ Organize with hashes • Add several hashes to one record and find it from any of them. • View each hash as a list, calendar, board, or card grid, depending on its kind. • Project hashes: a goal, a target date, progress, and an idea / in progress / done board. • Link hashes: cards with titles and previews, plus a reading mode. ■ Today and calendar • See today's events and to-dos on one screen. • Month calendar, week strip, public holidays, and your iPhone calendars overlaid. • Repeating events, repeating habits, and streaks. • Time-based and location-based reminders (arrive or leave). ■ Rediscover • Brings back "on this day" records, unread links, records you marked to revisit, and long-postponed to-dos as cards. • Search that covers note text and link content, with Korean initial consonants, date ranges, and hashes. ■ Make it yours • A different theme for every hash: Default, Paper Notebook, and Retro. • Ask the AI you already use for a theme, paste it in, and it becomes your own. ■ Import and AI • Import a KakaoTalk "Chat with myself" export, and its links and notes are grouped into hashes. • Paste a trip plan or meeting summary from an AI, and it becomes events, to-dos, and checklists. • On supported devices, on-device AI suggests hashes and summarizes long records. ■ Widgets and Shortcuts • Home Screen and Lock Screen widgets: check off today's to-dos, write quickly, and see your calendar. • A Control Center button, Siri, and Shortcuts. ■ Your records stay yours • Records are stored on your device. • Deleted records stay in Recently Deleted for 30 days. • Export to Markdown files, and make full backups you can restore. • Sync across your devices with iCloud, and share a hash with family or coworkers. If you used the previous version of Hash, your records move over automatically the first time you open the update. Hash's interface is currently in Korean.
Screenshots
Verdict
The clearest difference is in-app purchases: HASH at none against B.Notes/Chat's 1. B.Notes/Chat's advantage is iOS requirement (17.6 vs 26.0). On price, update cadence, ads 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. B.Notes/Chat sells 1 one-off in-app purchase. HASH asks for nothing beyond the download.
B.Notes/Chat ships an update every 2 months, HASH every 6 weeks. The most recent releases landed on October 12, 2026 and October 27, 2026 respectively.
| Parameter | B.Notes/Chat | HASH |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Kouichi Abe | jihye choi |
In-app purchases
B.Notes/Chat
- Beerware$1.99
HASH
No in-app purchases









