# CAL_ vs Simple Calendar

The clearest difference is in-app purchases: CAL_ at none against Simple Calendar's 3. CAL_ also leads on ads (none vs shown) and update cadence (every 4 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Simple Calendar sells 3 in-app purchases, starting at $1.99 per month. CAL_ asks for nothing beyond the download.

CAL_ ships an update every 4 days, Simple Calendar every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CAL_ | Simple Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (74 ratings)](https://appshunter.io/ios/app/simple-calendar-widget-cal/id1506434688/reviews)** |
| Number of ratings | — | **74** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 9 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SQUAIR Inc.](https://appshunter.io/developer/1162347955) | [Heart Relay Inc.](https://appshunter.io/developer/1327363297) |

## What reviewers say

### CAL_

[App page](https://appshunter.io/ios/app/cal-logging-calculator/id1162347956)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Calendar

[App page](https://appshunter.io/ios/app/simple-calendar-widget-cal/id1506434688)

Quickly view your monthly schedule and upcoming events with this easy-to-use calendar app. It offers widget support for at-a-glance access to your day and plans, with all data stored securely on your device. Enjoy a comfortable viewing experience with dark mode support.

**Highlights:** Monthly schedule overview, Quick event registration, Widget support for daily plans, Secure on-device data storage, Dark mode compatibility

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (Monthly) | $1.99 | per month |
| Premium Plan (Yearly) | $11.99 | per year |
| Hide ads | $11.99 | one-time |


## Frequently asked questions

### Is CAL_ free?

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

### Is Simple Calendar free?

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

### Do CAL_ or Simple Calendar have ads?

Simple Calendar shows ads; CAL_ does not.

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

CAL_ ships an update every 4 days, and Simple Calendar every 3 weeks. Most recently, CAL_ was updated on October 29, 2026 and Simple Calendar on October 24, 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.*