FirstSeed Calendar vs PDF Margin Adjuster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FirstSeed Calendar
A powerful scheduling app that manages both events and reminders. It offers innovative calendar views, interactive widgets for various iOS versions, and seamless syncing with Apple's Calendar and Reminders apps. An optional paid upgrade unlocks advanced features like natural language event processing and drag-and-drop functionality.
- Interactive and lock-screen widgets
- Full-featured month, week, and list views
- Event and reminder management
- Natural language event processing (paid)
- Drag & drop event manipulation (paid)
- Apple Watch support
- Syncs with Apple Calendar and Reminders
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FirstSeed Calendar keeps your events and reminders in one place. It’s fast, flexible, and built so you can handle most tasks with one hand. Features: - Month view that handles everyday tasks with one hand - Week view that fits the whole week on one screen, with no vertical scrolling - Day, list, and year views, including a list view laid out like a paper planner - Events and reminders together in one calendar - Move or duplicate events to multiple dates at once - Respond to invitations right from the app - Daily Summary notifications for today’s or tomorrow’s events - Home Screen, Lock Screen, StandBy, and interactive widgets, including a timeline widget - Control Center controls - Apple Watch app with complications - Dark mode, custom themes, and colors for weekends and holidays - Designed for Liquid Glass, with clear and tinted icons and widgets Pro: One-Time Purchase, No Subscription: - Sync directly with Google Calendar, including per-event colors - Trash: recover deleted events and reminders for up to 30 days - Automatic backups of your calendar data - Quick Event: create events by typing naturally, like “Lunch with Bob at noon tomorrow” - Full-screen alarms for events you can’t miss - Weather forecasts in your calendar - Week numbers, time zones, and event history - Drag and drop to reschedule events - Templates for events you create often - Calendar sets to show or hide groups of calendars with one tap - Import and export ICS files - Customize the Apple Watch app - Alternate app icons - No ads Sync: FirstSeed Calendar works with Apple’s Calendar and Reminders apps, so your events and reminders stay in sync across all your devices through iCloud, Google, Exchange, and any other accounts you’ve added in Settings.
PDF Margin Adjuster
Easily modify the margins of your PDF, PPT, and PPTX files. This app offers interactive tools to adjust margins precisely, from simple adjustments to advanced, side-specific controls. Save your modified documents directly to your device or cloud storage.
- Interactive margin adjustment
- Simple, advanced, and expert modes
- Adjust margins side-by-side
- Save to device or iCloud
- Share to other applications
- Supports PDF, PPT, PPTX files
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Have you experienced that a PDF file have too large/small margin? PDF Margin Adjuster allows you to adjust PDF margins interactively. How to Use === 1. Open a PDF/PPT/PPTX* file with the folder button on the lower left of the screen. You also can open a PDF/PPT/PPTX* file from another application (e.g. Safari). 2. Adjust the margin of the file. - Simple: adjust margin with the arrow buttons at the center of the screen. - Advanced: adjust margin either side separately. - Expert: adjust margin more finely and freely. 3. Save it to your own device or iCloud/ Share it to another application with the share button at the bottom of the screen. *PPT/PPTX is experimental feature, layout can be collapsed.
Screenshots
Verdict
The clearest difference is in-app purchases: PDF Margin Adjuster at none against FirstSeed Calendar's 2. PDF Margin Adjuster also leads on ads (none vs shown) and iOS requirement (13.0 vs 26.0). FirstSeed Calendar's advantage is update cadence (every 8 days vs every 3 months) and ratings volume (339 vs 47). On price, rating, review sentiment 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. FirstSeed Calendar sells 2 in-app purchases, starting at $2.99 per month. PDF Margin Adjuster asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for FirstSeed Calendar against 4.6 for PDF Margin Adjuster. That said, the two scores are not equally well evidenced: FirstSeed Calendar has 339 ratings behind it against 47, so its average is the more settled of the two. Written reviews are what separate them: 81% of FirstSeed Calendar's written reviews are positive against 83% of PDF Margin Adjuster's.
FirstSeed Calendar ships an update every 8 days, PDF Margin Adjuster every 3 months. Both last shipped on November 2, 2026.
| Parameter | FirstSeed Calendar | PDF Margin Adjuster |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (339 ratings) — better | 4.6 (47 ratings) |
| Positive reviews | 80.5% of reviews | 83.3% of reviews — better |
| Number of ratings | 339 — better | 47 |
| Update frequency | Every 8 days — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 67 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | FirstSeed Inc | Yohei Iseki |
Customer experience
FirstSeed Calendar
PDF Margin Adjuster
In-app purchases
FirstSeed Calendar
- Monthly Donation$2.991 Month
- Pro Version$9.99
PDF Margin Adjuster
No in-app purchases
Questions
Is FirstSeed Calendar free?
Is PDF Margin Adjuster free?
Which has better reviews, FirstSeed Calendar or PDF Margin Adjuster?
Do FirstSeed Calendar or PDF Margin Adjuster have ads?
Which is updated more often, FirstSeed Calendar or PDF Margin Adjuster?
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