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Voice Brain: AI Journal

Diary, ideas & tasks by voice
kai kubota · Productivity
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App info

Developer
kai kubota
Category
Productivity, Lifestyle
Released
Sep 16, 2026
Version
1.0.2 (Sep 26, 2026)
Price
Free
Size
129.7 MB
Requires
iOS 15.0
Age rating
4+
Languages
English, French, German, Japanese, Korean, Spanish

In-app purchases

Extra 60 Minutes$1.99
Pro Yearly$79.99
Pro life time$279.00
Pro Monthly$9.99
Current prices, App Store US.
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About Voice Brain: AI Journal

Voice Brain turns a single spoken thought into an organized diary entry, idea, or task — automatically. Tap the mic whenever something crosses your mind — while walking, between meetings, or right before you forget it. Voice Brain transcribes your voice (Whisper) and uses AI (GPT-4o-mini) to sort it into the right place: a diary entry that preserves your own words and emotion, an idea worth revisiting, or a task with a due date and reminder already attached. FEATURES • One tap to record, AI sorts it for you — review and re-categorize anytime • Diary: monthly view, emotion tags, photo/video attachments, decorative backgrounds • Ideas: tag, pin, and search past ideas • Tasks: AI-estimated due dates, reminders, and calendar sync • Weekly Report (Pro): a visual recap of your week — mood trends, top keywords, and an AI-written letter • Second Brain Chat (Pro): ask questions across everything…
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