Greyer vs Calemon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Greyer
This AI assistant helps you capture thoughts, organize notes, and manage tasks using voice commands. It integrates with your email and calendar to provide timely suggestions and reminders, keeping your day under control.
- Voice-based idea capture
- Structured notes and to-dos
- Customizable reminders
- Email and calendar integration
- Proactive suggestions
- Smart cap compatibility
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Greyer is your proactive AI assistant for turning everyday thoughts into organized notes, tasks, and reminders. Speak naturally to capture ideas hands-free, wherever they happen. Greyer helps structure what you say so it’s easier to remember, organize, and act on. Connect your email and calendar to stay ahead of what matters. Greyer can surface important messages, upcoming meetings, and timely suggestions—before anything slips through the cracks. With Greyer, you can: • Capture thoughts using your voice • Turn ideas into structured notes and to-dos • Create reminders for the things that matter • Connect your email and calendar • Receive proactive, timely suggestions • Capture on the go with a compatible smart cap Your thoughts, captured. Your day, under control. Your mind, organized. Some features require account permissions, compatible services, or hardware purchased separately.
Calemon
Transform your weekly schedule into a visually appealing wallpaper for your iPhone or iPad. Easily add classes, work shifts, or appointments and have them automatically arranged into a clear timetable. Customize backgrounds, colors, and typography to create a personalized schedule view.
- Create weekly schedules
- Add events to multiple days
- Customize colors and typography
- Use personal photos as backgrounds
- Export as PNG or JPEG
- iCloud support
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Your week, right on your wallpaper. Calemon turns your weekly schedule into a clean, beautiful wallpaper for your iPhone or iPad. Add classes, work shifts, routines, appointments, or anything that repeats throughout your week. Calemon automatically arranges everything into an easy-to-read timetable that you can save as a Lock Screen, Home Screen, or schedule card. BUILD YOUR WEEK • Create weekly schedules in seconds • Add events to multiple days at once • Choose times, colors, locations, and notes • Automatically adjust the timetable to your schedule • Keep overlapping events visible • Include weekends when you need them MAKE IT YOURS • Choose from beautiful backgrounds • Use your own photos • Customize colors and typography • Create wallpapers for iPhone and iPad • Export as PNG or JPEG MADE FOR REAL SCHEDULES Use Calemon for: • College and school timetables • Class schedules • Work schedules and shifts • Weekly routines • Family schedules • Activities and appointments STAY ON TOP OF REPEATING EVENTS • Add optional start and end dates • Set reminders only where you need them • Keep semester, lesson, and seasonal schedules active only when needed SEE WHAT’S NEXT Use the Calemon widget to quickly see what’s happening now and what’s coming up next — even when schedules overlap. CALEMON PLUS Upgrade once to unlock unlimited schedules, schedule combining, premium styles, additional device export options, and more customization. One-time purchase. No subscription. Your schedules stay yours. Calemon is designed to work locally on your device, with iCloud support for keeping your schedules available across your Apple devices. Make your week easier to see — with Calemon.
Screenshots
Verdict
The clearest difference is review sentiment: Calemon at 100% against Greyer's 25%. Calemon also leads on rating (5.0 vs 3.9). Greyer's advantage is in-app purchases (none vs 1) and ratings volume (14 vs 1). 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. Calemon sells 1 one-off in-app purchase. Greyer asks for nothing beyond the download.
Calemon holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Greyer has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of Greyer's written reviews are positive against 100% of Calemon's.
Greyer ships an update every 2 weeks, Calemon fortnightly. Both last shipped on October 29, 2026.
| Parameter | Greyer | Calemon |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (14 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 1 |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 85 MB | 2 MB |
| Age rating | 12+ | 4+ |
| Developer | GREYER LLC | IMPLEMON LLC |
Customer experience
Greyer
Calemon
In-app purchases
Greyer
No in-app purchases
Calemon
- Calemon Plus$3.99









