# FirstSeed Calendar vs PDF Margin Adjuster

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 (340 vs 47). On price, rating, review sentiment and device support there is nothing between them.

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 340 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. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | FirstSeed Calendar | PDF Margin Adjuster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (340 ratings)](https://appshunter.io/ios/app/firstseed-calendar/id1321260278/reviews)** | [4.6 (47 ratings)](https://appshunter.io/ios/app/pdf-margin-adjuster/id1450718650/reviews) |
| Number of ratings | **340** | 47 |
| Positive reviews | 80.5% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 67 MB | 1 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FirstSeed Inc](https://appshunter.io/developer/1321260277) | [Yohei Iseki](https://appshunter.io/developer/1450718649) |

## What reviewers say

### FirstSeed Calendar

[App page](https://appshunter.io/ios/app/firstseed-calendar/id1321260278)

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.

**Highlights:** 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

**Features:** Family Sharing, Apple Watch app, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Donation | $2.99 | per month |
| Pro Version | $9.99 | one-time |


### PDF Margin Adjuster

[App page](https://appshunter.io/ios/app/pdf-margin-adjuster/id1450718650)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FirstSeed Calendar free?

FirstSeed Calendar is free to download, with in-app purchases available.

### Is PDF Margin Adjuster free?

PDF Margin Adjuster is free to download, with no in-app purchases.

### Which has better reviews, FirstSeed Calendar or PDF Margin Adjuster?

FirstSeed Calendar is rated higher. FirstSeed Calendar averages 4.7 out of 5 from 340 ratings, while PDF Margin Adjuster averages 4.6 from 47 ratings.

### Do FirstSeed Calendar or PDF Margin Adjuster have ads?

FirstSeed Calendar shows ads; PDF Margin Adjuster does not.

### Which is updated more often, FirstSeed Calendar or PDF Margin Adjuster?

FirstSeed Calendar ships an update every 8 days, and PDF Margin Adjuster every 3 months. Most recently, FirstSeed Calendar was updated on November 6, 2026 and PDF Margin Adjuster on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*