Oh My Notes vs Agua
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Oh My Notes compared with Agua
| Detail | 
Oh My Notes | 
Agua |
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| What it does | Your Today Layer for Mac, Always on Top
| Free I Ching six-line reading with three coins
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Free
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| Pricing | Free: $0 forever. Pro: $9.99 one-time (early bird $7.99). Free tier includes Today panel, quick capture, search, plain Markdown notes, edge dock and always-on-top float, one-shot reminders, pinyin search, and git version history with Shortcuts. Pro adds floating above fullscreen apps, recurring remi
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| Key features | - Floating notes above fullscreen apps and across Spaces (Pro)
- Adjustable unfocused opacity from 40% to 100%
- Global hotkey quick capture from any app
- Plain Markdown files stored on your Mac
- Reminders with daily or weekly repeat (Pro)
- Apple Reminders and Calendar sync (Pro)
- Point to any folder including Obsidian vault (Pro)
- Trilingual interface: English, Simplified Chinese, Traditional Chinese
- Pinyin search with Simplified and Traditional variant matching
- Hidden by default in screen sharing, recordings and screenshots
| - Three-coin casting method for generating six-line charts
- Rule-based chart calculation with stem-branch assignment
- Optional AI-assisted interpretation of results
- AI follow-up questions and conversation feature
- Local browser storage for reading history
- Hexagram judgments and images reference
- Multi-language support including English, Chinese and Spanish
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| What makes it different | - Plain Markdown files you own with no account or server required
- Stays on top of fullscreen apps and across Spaces
- Notes synced with Apple Reminders reach your iPhone without a separate iOS app
- Compatible with Obsidian vaults as native Markdown files
| - Transparent rule-based chart calculation that AI cannot alter
- All charting happens locally in your browser for privacy
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 6 ▲ +1 (up) since last check | 2 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 22 | 0 |
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| Referring domains (Majestic) | 4 | 0 |
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4 details filled in for both companies.
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