| What it does | Native EPUB, PDF, comic and audiobook reader for iPhone and iPad with full customization and Calibre sync
| The calendar you zoom
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| Stage | Startup
| Startup
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| Founded | 2024
| 2026
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| Based in | Not given
| SE
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| Pricing model | Free trial
| Freemium
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| Pricing | Not given
| Three weeks free, then $1.99 per month, $19.99 per year, or $39.99 once for lifetime access. Other currencies follow Apple's tiers.
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| Key features | - Supports EPUB, PDF, CBZ, CBR comics, and audiobooks in m4b, mp3, m4a, aac and flac formats
- Customizable fonts, colors, margins, spacing and layout
- Cloud sync through iCloud, Dropbox, Google Drive or OneDrive
- Calibre library integration with two-way sync
- Reading statistics with streaks, heatmaps and achievements
- Full-text search across entire books
- Import custom fonts and apply them immediately
| - Zoom from half a year to individual days hour by hour
- Create events by holding a free slot and typing
- Reschedule events on the calendar while viewing surrounding events
- Weather forecasts displayed by date and hour
- Daylight indicator showing sunset and sunrise
- Auto-suggest recurring events from calendar history
- Home Screen and Lock Screen widgets at multiple sizes
- Works directly with iCloud, Google, and Exchange calendars
- Round times by default with option for exact times
- Time zones and reminders
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| What makes it different | - No account, no analytics, no tracking - your books and reading data stay on your devices and in your own cloud
- Four different book formats share one unified library with synchronized progress
- Complete customization of typography, colors, spacing and layout without compromises
- Native iOS experience built from the ground up for iPhone and iPad
- Handles libraries of 5,000+ books without slowdowns
| - One continuous calendar with no separate views instead of switching between month, week, and day screens
- Direct editing on the calendar itself rather than in hidden forms
- No server, account, or data collection
- Works with existing calendars, no import needed
- Paper-like simplicity with digital power
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 19 ▲ +1 (up) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 25 | 7 |
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| Citation Flow (Majestic) | 26 | 14 |
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| Referring domains (Majestic) | 96 | 20 |
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justRead.app
Riff Calendar