# Calendar Notes vs PDFeather

The clearest difference is in-app purchases: Calendar Notes at none against PDFeather's 3. Calendar Notes also leads on iOS requirement (16.0 vs 18.0). PDFeather's advantage is ads (none vs shown) and update cadence (weekly vs every 11 months). On price and device support there is nothing between them.

Both are free to download. PDFeather sells 3 in-app purchases, starting at $4.99 per month. Calendar Notes asks for nothing beyond the download.

Calendar Notes ships an update every 11 months, PDFeather weekly. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Calendar Notes | PDFeather |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (74 ratings)](https://appshunter.io/ios/app/calendar-notes-simple-and-easy/id6502745975/reviews)** | — |
| Number of ratings | **74** | — |
| Positive reviews | 93.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 5 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Edi Ermawan](https://appshunter.io/developer/1718671078) | [Patrick Vo](https://appshunter.io/developer/1896714719) |

## What reviewers say

### Calendar Notes

[App page](https://appshunter.io/ios/app/calendar-notes-simple-and-easy/id6502745975)

Capture your thoughts and plans directly on a calendar. This straightforward app lets you add notes, ideas, and personal agendas to specific dates with customizable colors. View your entries by month or year in a clean, lightweight interface.

**Highlights:** Save notes and ideas to calendar dates, Add color to notes, View notes by month or year, Perpetual calendar functionality, Lightweight and small app size

**Features:** macOS Compatibility

**In-app purchases:** none


### PDFeather

[App page](https://appshunter.io/ios/app/pdfeather-pdf-reader-and-editor/id6801833585)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDFeather Pro Monthly | $4.99 | per month |
| PDFeather Pro Yearly | $29.99 | per year |
| PDFeather Pro Lifetime. | $59.99 | one-time |


## Frequently asked questions

### Is Calendar Notes free?

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

### Is PDFeather free?

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

### Do Calendar Notes or PDFeather have ads?

Calendar Notes shows ads; PDFeather does not.

### Which is updated more often, Calendar Notes or PDFeather?

Calendar Notes ships an update every 11 months, and PDFeather weekly. Most recently, Calendar Notes was updated on September 28, 2026 and PDFeather on September 15, 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.*