# PDF Calendar vs Kernel

The clearest difference is in-app purchases: Kernel at none against PDF Calendar's 3. PDF Calendar's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. PDF Calendar sells 3 in-app purchases, starting at $2.99 per month. Kernel asks for nothing beyond the download.

## The numbers

| Metric | PDF Calendar | Kernel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.1K ratings)](https://appshunter.io/ios/app/pdf-calendar-print-and-share/id1487085350/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 38.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 130 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [New Marketing Lab, Inc](https://appshunter.io/developer/1080727702) | [Gee LLC](https://appshunter.io/developer/6807611136) |

## What reviewers say

### PDF Calendar

[App page](https://appshunter.io/ios/app/pdf-calendar-print-and-share/id1487085350)

Easily generate and share PDF versions of your iPhone or iPad calendars. Select date ranges, views, and calendars to create printable or shareable files. Customize font size, add event locations, and print directly to AirPrint printers.

**Highlights:** Generate PDF calendar files, Print calendars directly, Share PDFs via email/messaging, Select date ranges and views, Customize font size and paper size, Optionally add event locations

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Calendar Pro (monthly) | $2.99 | per month |
| PDF Calendar Pro (annual) | $4.99 | per year |
| PDF Calendar Pro (lifetime) | $9.99 | one-time |

**What reviewers like**

- 🚀 Excellent app for printing calendars
- 👍 Easy to use and intuitive
- 💡 Consolidates all calendars in one place
- 👍 Customizable print options

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 💰 Many features locked behind paywall
- 📢 Excessive ads in free version
- 🔍 Difficulty selecting desired calendars

**Reported bugs**

- Printing cuts off events and calendar details
- Calendar data not syncing properly
- Inconsistent behavior across different devices
- Free version severely limited in functionality

**Requested features**

- Option to print calendar notes
- Ability to adjust font size and layout
- Support for 24-hour clock format
- Refresh button to update calendar data


### Kernel

[App page](https://appshunter.io/ios/app/kernel-corn-yield-estimator/id6807611134)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Calendar free?

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

### Is Kernel free?

Kernel is free to download, with no in-app purchases.

### Do PDF Calendar or Kernel have ads?

Both PDF Calendar and Kernel show ads.

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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.*