# ZenMinder vs Riff Calendar

The clearest difference is in-app purchases: ZenMinder at none against Riff Calendar's 3. ZenMinder also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Riff Calendar sells 3 in-app purchases, starting at $2.99 per month. ZenMinder asks for nothing beyond the download.

## The numbers

| Metric | ZenMinder | Riff Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zenminder/id6777560654/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 3 MB | 12 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shaomeng Zhang](https://appshunter.io/developer/1399816359) | [KJELL MAGNUS REX](https://appshunter.io/developer/6789502727) |

## What reviewers say

### ZenMinder

[App page](https://appshunter.io/ios/app/zenminder/id6777560654)

Visualize your completed tasks from Apple Reminders as a contribution heatmap. Track your daily productivity and revisit completed items with detailed insights. Available on iPhone and Mac, it brings back the satisfaction of checking things off.

**Highlights:** Completed reminder heatmap, Daily productivity visualization, Browse completed tasks by day, Filter reminders by status, iPhone and Mac apps, Home screen widgets, Menu bar app

**Features:** Vision Pro support

**In-app purchases:** none


### Riff Calendar

[App page](https://appshunter.io/ios/app/riff-calendar/id6789502725)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $24.99 | per year |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is ZenMinder free?

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

### Is Riff Calendar free?

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

### Do ZenMinder or Riff Calendar have ads?

Neither ZenMinder nor Riff Calendar shows ads.

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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.*