# Resosmart Plus vs ShiftCal Shift Work Calendar

The clearest difference is in-app purchases: Resosmart Plus at none against ShiftCal Shift Work Calendar's 3. Resosmart Plus also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.4). ShiftCal Shift Work Calendar's advantage is update cadence (every 5 days vs monthly). On price and device support there is nothing between them.

Both are free to download. ShiftCal Shift Work Calendar sells 3 in-app purchases, starting at $2.99 per month. Resosmart Plus asks for nothing beyond the download.

Resosmart Plus ships an update monthly, ShiftCal Shift Work Calendar every 5 days. The most recent releases landed on September 21, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | Resosmart Plus | ShiftCal Shift Work Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 5 days** |
| Size | 43 MB | 112 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Rsmart Aviation](https://appshunter.io/developer/1587830556) | [Pablo Almancio](https://appshunter.io/developer/1859498121) |

## What reviewers say

### Resosmart Plus

[App page](https://appshunter.io/ios/app/resosmart-plus/id6736362988)

**Features:** Vision Pro support

**In-app purchases:** none


### ShiftCal Shift Work Calendar

[App page](https://appshunter.io/ios/app/shiftcal-shift-work-calendar/id6757965010)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShiftCal PRO Monthly | $2.99 | per month |
| ShiftCal PRO Annual | $11.99 | per year |
| ShiftCal PRO Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Resosmart Plus free?

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

### Is ShiftCal Shift Work Calendar free?

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

### Do Resosmart Plus or ShiftCal Shift Work Calendar have ads?

ShiftCal Shift Work Calendar shows ads; Resosmart Plus does not.

### Which is updated more often, Resosmart Plus or ShiftCal Shift Work Calendar?

Resosmart Plus ships an update monthly, and ShiftCal Shift Work Calendar every 5 days. Most recently, Resosmart Plus was updated on September 21, 2026 and ShiftCal Shift Work Calendar on August 20, 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.*