# Simple Calendar vs BookNotes

The clearest difference is in-app purchases: BookNotes at none against Simple Calendar's 3. BookNotes also leads on update cadence (every 6 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Calendar sells 3 in-app purchases, starting at $0.99 per month. BookNotes asks for nothing beyond the download.

Simple Calendar ships an update fortnightly, BookNotes every 6 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple Calendar | BookNotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (19 ratings)](https://appshunter.io/ios/app/simple-calendar-daily-planner/id6478577318/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 82.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 108 MB | 77 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [At Ease Ltd.](https://appshunter.io/developer/1733399766) | [Tzu-Ying Chan](https://appshunter.io/developer/6799665580) |

## What reviewers say

### Simple Calendar

[App page](https://appshunter.io/ios/app/simple-calendar-daily-planner/id6478577318)

This app offers a clean, ad-free calendar and schedule planner. It helps manage daily events, track anniversaries, and count down to special dates with customizable views and reminders. Seamlessly syncs with your device's system calendar.

**Highlights:** Clean calendar views, Smart event management, Anniversary & countdown tracker, Personalizable UI themes and icons, Customizable week start day, Cloud backup and restore, System calendar integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $8.99 | per year |
| Lifetime | $12.99 | one-time |


### BookNotes

[App page](https://appshunter.io/ios/app/booknotes/id6811384233)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Calendar free?

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

### Is BookNotes free?

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

### Do Simple Calendar or BookNotes have ads?

Neither Simple Calendar nor BookNotes shows ads.

### Which is updated more often, Simple Calendar or BookNotes?

Simple Calendar ships an update fortnightly, and BookNotes every 6 days. Most recently, Simple Calendar was updated on November 8, 2026 and BookNotes on October 31, 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.*