# Memo Widget Flow vs Astro Sky Calendar

The clearest difference is update cadence: Astro Sky Calendar at every 5 days against Memo Widget Flow's every 11 months. Astro Sky Calendar also leads on device support (4 vs 2) and iOS requirement (15 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

Memo Widget Flow ships an update every 11 months, Astro Sky Calendar every 5 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Memo Widget Flow | Astro Sky Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 days** |
| Size | 2 MB | 19 MB |
| Requires iOS | 17.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ivanov](https://appshunter.io/developer/1721341927) | [明杰 曾](https://appshunter.io/developer/1695506895) |

## What reviewers say

### Memo Widget Flow

[App page](https://appshunter.io/ios/app/memo-widget-flow/id6474308364)

**Features:** macOS Compatibility

**In-app purchases:** none


### Astro Sky Calendar

[App page](https://appshunter.io/ios/app/astro-sky-calendar/id6762348929)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Memo Widget Flow free?

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

### Is Astro Sky Calendar free?

Astro Sky Calendar is free to download, with no in-app purchases.

### Do Memo Widget Flow or Astro Sky Calendar have ads?

Neither Memo Widget Flow nor Astro Sky Calendar shows ads.

### Which is updated more often, Memo Widget Flow or Astro Sky Calendar?

Memo Widget Flow ships an update every 11 months, and Astro Sky Calendar every 5 days. Most recently, Memo Widget Flow was updated on October 30, 2026 and Astro Sky Calendar on October 28, 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.*