# PDF Merger vs Calendria

The clearest difference is update cadence: Calendria at weekly against PDF Merger's every 9 months. Calendria also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Merger sells 3 in-app purchases, starting at $1.99 per 7 days and Calendria sells 1 in-app purchase, starting at $79.99 per year. Whichever you choose, the download price is not the number that matters.

PDF Merger ships an update every 9 months, Calendria weekly. The most recent releases landed on October 7, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | PDF Merger | Calendria |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calendria/id6772512726/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 2 MB | 98 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmet Bostancklioglu](https://appshunter.io/developer/1780554362) | [PROCLEAR CONSULTING](https://appshunter.io/developer/6772512728) |

## What reviewers say

### PDF Merger

[App page](https://appshunter.io/ios/app/pdf-merger-combine-and-split/id6738798786)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — Weekly | $1.99 | per 7 days |
| Pro — Yearly | $29.99 | per year |
| PDF Merger Lifetime | $59.99 | one-time |


### Calendria

[App page](https://appshunter.io/ios/app/calendria/id6772512726)

This app is a comprehensive productivity tool that helps you organize your daily life, schedules, and memories. It allows you to attach rich multimedia to your notes and events, ensuring you capture the full context of your day. Enjoy offline access and worry-free compliance for all your important records.

**Highlights:** Smart calendar management, Multimedia notes (images, video, music), Offline support, Worry-free compliance, Unlimited daily data (Premium), Automatic cloud backups (Premium), Advanced exporting (Premium)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Ad-Free Membership | $79.99 | per year |


## Frequently asked questions

### Is PDF Merger free?

PDF Merger is free to download, with in-app purchases available.

### Is Calendria free?

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

### Do PDF Merger or Calendria have ads?

Neither PDF Merger nor Calendria shows ads.

### Which is updated more often, PDF Merger or Calendria?

PDF Merger ships an update every 9 months, and Calendria weekly. Most recently, PDF Merger was updated on October 7, 2026 and Calendria on October 21, 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.*