# Shift Calendar vs GROUPS Calendar

The clearest difference is ads: GROUPS Calendar at none against Shift Calendar's shown. GROUPS Calendar also leads on update cadence (every 5 days vs every 3 months). Shift Calendar's advantage is iOS requirement (11.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Shift Calendar sells 4 one-off in-app purchases and GROUPS Calendar sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Shift Calendar ships an update every 3 months, GROUPS Calendar every 5 days. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Shift Calendar | GROUPS Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (144 ratings)](https://appshunter.io/ios/app/shift-calendar-schedule/id1338193231/reviews)** | — |
| Number of ratings | **144** | — |
| Positive reviews | 51.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 82 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [章健 杨](https://appshunter.io/developer/1566849627) | [Luis Alberto Reyes Halaby](https://appshunter.io/developer/1523513037) |

## What reviewers say

### Shift Calendar

[App page](https://appshunter.io/ios/app/shift-calendar-schedule/id1338193231)

Easily manage your work schedule with this app designed for shift workers. Customize your shifts, generate schedules automatically, and add important notes to your calendar.

**Highlights:** Customizable shift work, Automatic cycle scheduling, Calendar notes, Clear shift display

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendar Notes | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Pro Version | $0.99 | one-time |
| Add User | $0.99 | one-time |


### GROUPS Calendar

[App page](https://appshunter.io/ios/app/groups-calendar/id1636101268)

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Component: Alarms Silencer | $0.99 | one-time |
| Component: Variable text | $0.99 | one-time |
| Component: Variable Schedule | $0.99 | one-time |
| Component: Audio | $1.99 | one-time |
| Platinum account | $1.99 | one-time |
| Component: Images | $2.99 | one-time |
| Gold Account | $2.99 | one-time |
| Platinum Account | $3.99 | one-time |
| Silver account | $4.99 | one-time |
| Platinum account | $6.99 | one-time |
| Donation | $9.99 | one-time |
| Donation | $19.99 | one-time |


## Frequently asked questions

### Is Shift Calendar free?

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

### Is GROUPS Calendar free?

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

### Do Shift Calendar or GROUPS Calendar have ads?

Shift Calendar shows ads; GROUPS Calendar does not.

### Which is updated more often, Shift Calendar or GROUPS Calendar?

Shift Calendar ships an update every 3 months, and GROUPS Calendar every 5 days. Most recently, Shift Calendar was updated on September 25, 2026 and GROUPS Calendar on September 21, 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.*