# Add Calendar Basic vs Instant Memo

The clearest difference is update cadence: Instant Memo at every 4 days against Add Calendar Basic's monthly. Add Calendar Basic's advantage is iOS requirement (11.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Add Calendar Basic ships an update monthly, Instant Memo every 4 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Add Calendar Basic | Instant Memo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/add-calendar-basic/id1482436846/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 34 MB | 5 MB |
| Requires iOS | **11.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [cho seonghyun](https://appshunter.io/developer/1436483241) | [joonseo park](https://appshunter.io/developer/1265149051) |

## What reviewers say

### Add Calendar Basic

[App page](https://appshunter.io/ios/app/add-calendar-basic/id1482436846)

This utility app allows users to add custom calendars directly to their device wallpaper. It also offers a convenient feature for managing 3-shift work schedules.

**Highlights:** Add custom calendars to wallpaper, 3-shift work schedule management, Wallpaper integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Instant Memo

[App page](https://appshunter.io/ios/app/instant-memo-notes-and-widgets/id6773642635)

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

**In-app purchases:** none


## Frequently asked questions

### Is Add Calendar Basic free?

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

### Is Instant Memo free?

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

### Do Add Calendar Basic or Instant Memo have ads?

Both Add Calendar Basic and Instant Memo show ads.

### Which is updated more often, Add Calendar Basic or Instant Memo?

Add Calendar Basic ships an update monthly, and Instant Memo every 4 days. Most recently, Add Calendar Basic was updated on October 14, 2026 and Instant Memo on October 1, 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.*