# ActivityReminder FlareCalendar vs MuudWave

The clearest difference is ads: MuudWave at none against ActivityReminder FlareCalendar's shown. MuudWave also leads on update cadence (every 2 days vs every 3 weeks). ActivityReminder FlareCalendar's advantage is iOS requirement (15.6 vs 17.5). On price, 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.

ActivityReminder FlareCalendar ships an update every 3 weeks, MuudWave every 2 days. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | ActivityReminder FlareCalendar | MuudWave |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 42 MB | 3 MB |
| Requires iOS | **15.6** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Junichi Fujisaki](https://appshunter.io/developer/1494634261) | [Masao Narumi](https://appshunter.io/developer/1759494772) |

## What reviewers say

### ActivityReminder FlareCalendar

[App page](https://appshunter.io/ios/app/activityreminder-flarecalendar/id6503595757)

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

**In-app purchases:** none


### MuudWave

[App page](https://appshunter.io/ios/app/muudwave/id6740519998)

This app helps you understand your emotional patterns by tracking daily mood changes and visualizing their progression. It records relative mood shifts compared to the previous day, addressing limitations of absolute mood scales.

**Highlights:** Daily mood logging, Relative mood tracking, Emotional progression visualization, Understanding emotional shifts, Free to use

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

**In-app purchases:** none


## Frequently asked questions

### Is ActivityReminder FlareCalendar free?

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

### Is MuudWave free?

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

### Do ActivityReminder FlareCalendar or MuudWave have ads?

ActivityReminder FlareCalendar shows ads; MuudWave does not.

### Which is updated more often, ActivityReminder FlareCalendar or MuudWave?

ActivityReminder FlareCalendar ships an update every 3 weeks, and MuudWave every 2 days. Most recently, ActivityReminder FlareCalendar was updated on October 27, 2026 and MuudWave on November 4, 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.*