# Shared Calendar vs DoubleDone

The clearest difference is device support: Shared Calendar at 3 against DoubleDone's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Shared Calendar sells 2 in-app purchases, starting at $4.99 per month and DoubleDone sells 2 in-app purchases, starting at $3.00 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Shared Calendar | DoubleDone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 35 MB | 58 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Austin Leitmann](https://appshunter.io/developer/1896539838) | [Melroy D Souza](https://appshunter.io/developer/6790136617) |

## What reviewers say

### Shared Calendar

[App page](https://appshunter.io/ios/app/shared-calendar-loop/id6768106004)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Loop Pro Monthly | $4.99 | per month |
| Loop Pro Yearly | $39.99 | per year |


### DoubleDone

[App page](https://appshunter.io/ios/app/doubledone-adhd-to-do-list/id6790136615)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.00 | per month |
| Premium (Annual) | $30.00 | per year |


## Frequently asked questions

### Is Shared Calendar free?

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

### Is DoubleDone free?

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

### Do Shared Calendar or DoubleDone have ads?

Neither Shared Calendar nor DoubleDone shows ads.

### Which is updated more often, Shared Calendar or DoubleDone?

Shared Calendar ships an update weekly, and DoubleDone weekly. Most recently, Shared Calendar was updated on October 31, 2026 and DoubleDone 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.*