# HYDAC Tools vs ShiftCal Shift Work Calendar

The clearest difference is in-app purchases: HYDAC Tools at none against ShiftCal Shift Work Calendar's 3. HYDAC Tools 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 every 13 months). 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. HYDAC Tools asks for nothing beyond the download.

HYDAC Tools ships an update every 13 months, ShiftCal Shift Work Calendar every 5 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | HYDAC Tools | ShiftCal Shift Work Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydac-tools/id1396834045/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 12 MB | 112 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [HYDAC Pty. Ltd.](https://appshunter.io/developer/1396834044) | [Pablo Almancio](https://appshunter.io/developer/1859498121) |

## What reviewers say

### HYDAC Tools

[App page](https://appshunter.io/ios/app/hydac-tools/id1396834045)

This app provides engineers and project managers with tools for fluid power, motion control, and automation. It offers features like cylinder calculations, unit conversions, filter sizing, and fluid care information to enhance daily productivity and efficiency.

**Highlights:** Cylinder calculations, Unit conversions, Filter sizing software, Fluid care information, Hydraulic pump selection, Brochure downloads, Online tools

**Features:** macOS Compatibility

**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 HYDAC Tools free?

HYDAC Tools 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 HYDAC Tools or ShiftCal Shift Work Calendar have ads?

ShiftCal Shift Work Calendar shows ads; HYDAC Tools does not.

### Which is updated more often, HYDAC Tools or ShiftCal Shift Work Calendar?

HYDAC Tools ships an update every 13 months, and ShiftCal Shift Work Calendar every 5 days. Most recently, HYDAC Tools was updated on October 7, 2026 and ShiftCal Shift Work Calendar on October 12, 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.*