# Fast MSG vs Work Shift Calendar

The clearest difference is ads: Fast MSG at none against Work Shift Calendar's shown. Work Shift Calendar's advantage is update cadence (every 2 days vs every 12 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Fast MSG sells 1 one-off in-app purchase and Work Shift Calendar sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Fast MSG ships an update every 12 months, Work Shift Calendar every 2 days. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Fast MSG | Work Shift Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 2 days** |
| Size | 3 MB | 29 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Claudio Guirunas](https://appshunter.io/developer/1149103410) | [DASHFIT LTD](https://appshunter.io/developer/1630541944) |

## What reviewers say

### Fast MSG

[App page](https://appshunter.io/ios/app/fast-msg/id6748307210)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.29 | one-time |


### Work Shift Calendar

[App page](https://appshunter.io/ios/app/work-shift-calendar-shiftcal/id6756549897)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Annual Premium | $9.99 | per year |
| Lifetime Premium | $34.99 | one-time |


## Frequently asked questions

### Is Fast MSG free?

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

### Is Work Shift Calendar free?

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

### Do Fast MSG or Work Shift Calendar have ads?

Work Shift Calendar shows ads; Fast MSG does not.

### Which is updated more often, Fast MSG or Work Shift Calendar?

Fast MSG ships an update every 12 months, and Work Shift Calendar every 2 days. Most recently, Fast MSG was updated on September 21, 2026 and Work Shift Calendar on September 15, 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.*