# Calendar Notes Pro vs PDF AI

The clearest difference is in-app purchases: Calendar Notes Pro at none against PDF AI's 3. Calendar Notes Pro also leads on update cadence (daily vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF AI sells 3 in-app purchases, starting at $2.99 per 7 days. Calendar Notes Pro asks for nothing beyond the download.

Calendar Notes Pro ships an update daily, PDF AI monthly. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Calendar Notes Pro | PDF AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calendar-notes-pro/id6757369920/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Monthly |
| Monetization | Ad-supported | — |
| Size | 35 MB | 37 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alok Haldiya](https://appshunter.io/developer/1866422343) | [TECH LOGIC HOST](https://appshunter.io/developer/1335938195) |

## What reviewers say

### Calendar Notes Pro

[App page](https://appshunter.io/ios/app/calendar-notes-pro/id6757369920)

This app integrates your calendar and notes into a single, minimalist interface. View notes directly on your calendar and enjoy instant auto-save for a stress-free organization experience. It prioritizes privacy by storing all data locally on your device.

**Highlights:** Notes displayed on calendar, Instant auto-save, Minimalist design, Tap to write notes, Fully offline functionality, Local data storage

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF AI

[App page](https://appshunter.io/ios/app/pdf-ai-chat-scanner-and-editor/id6758303451)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Doc Pro Weekly | $2.99 | per 7 days |
| PDF Doc Pro Monthly | $7.99 | per month |
| PDF Doc Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Calendar Notes Pro free?

Calendar Notes Pro is free to download, with no in-app purchases.

### Is PDF AI free?

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

### Do Calendar Notes Pro or PDF AI have ads?

Both Calendar Notes Pro and PDF AI show ads.

### Which is updated more often, Calendar Notes Pro or PDF AI?

Calendar Notes Pro ships an update daily, and PDF AI monthly. Most recently, Calendar Notes Pro was updated on October 31, 2026 and PDF AI on November 9, 2026.

---

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