Supported Features
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Dark Interface
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Differentiate Without Color Alone
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Reduced Motion
Aion: Zeroth Edition
Diary as Instrument
Only for Mac
$29.00
Mac
Digital memory interface. Diary as Instrument.
Aion has three surfaces: a calendar, a writing page, and a dashboard. Every entry is timestamped and each minute of the day has a specific hue, cycling continuously from midnight to midnight.
Calendar. Your year at a glance. Each day is a cell, illuminated according to how much you wrote, with the moon phase and other date-anchored events (birthdays, anniversaries) shown as annotations. A yin-yang marker indicates days with both exercise logged and diary entries captured, to denote balance between the physical and the spiritual.
Chronicle. A custom text editor with an integrated command line. Use cd DD.MM.YYYY to jump to a date, !remindme to leave a note for the future, or ?wiki to look up a term on Wikipedia. There are commands for navigation, search, reminders, and more. State of the art natural language date parsing engine to process commands anchored in time.
Patterns. Two radar charts and radial histograms, AM and PM, showing the distribution and cadence of your writing (optionally filtered by location or year).
Swipe with two fingers, or press ⌘1, ⌘2 and ⌘3, to move between surfaces. Move the cursor to the top of the window to reveal the toolbar. Otherwise, the interface remains invisible.
Aion uses no generative AI. On-device vector embeddings index your entries for semantic search. After writing, use /similar on a new line to find earlier entries with high cosine similarity.
No account, sign-in, tracking, or analytics. An optional one-way backup to your private iCloud. Your writing never leaves the machine except in that backup.
Entries are stored locally as per-day files and can be exported to Markdown or plain text.
Bespoke typography, cinematic animations, no third-party code. Full overview of features: https://417k.studio/aion/
Aion: Zeroth Edition. A mirror for the soul.
Dreamt in Berlin, designed in Paris, developed in London.
© 2026 Studio 417K
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Polished natural language date parsing
- Patterns: hour spikes cut like engraved crystals
- Reminders can repeat intermittently until a date
- Formatting transfers when you copy within Aion; ⌘; underlines misspellings
- Many smaller refinements and fixes
The developer, Omar Chishti, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
The developer indicated that this app supports the following accessibility features. Learn More
For more information, visit the developer’s accessibility website .
Information
- Seller
- Omar Chishti
- Size
- 10.1 MB
- Category
- Lifestyle
- Compatibility
Requires macOS 15.6 or later.
- Mac
Requires macOS 15.6 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Studio 417K
