# Knitventory vs Shift Calendar

The clearest difference is price: Shift Calendar at Free against Knitventory's $0.99. Shift Calendar also leads on device support (3 vs 1). Knitventory's advantage is in-app purchases (none vs 3). On ads and iOS requirement there is nothing between them.

Shift Calendar is free to download; Knitventory costs $0.99 up front. Shift Calendar sells 3 in-app purchases, starting at $4.99 per month. Knitventory asks for nothing beyond the download.

## The numbers

| Metric | Knitventory | Shift Calendar |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 4 MB | 41 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Nadiia Makiiova](https://appshunter.io/developer/1812272603) | [CAN BAYRAKTARBASI](https://appshunter.io/developer/1895609317) |

## What reviewers say

### Knitventory

[App page](https://appshunter.io/ios/app/knitventory/id6745443686)

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

**In-app purchases:** none


### Shift Calendar

[App page](https://appshunter.io/ios/app/shift-calendar-backshift/id6812816170)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Backshift Pro Monthly | $4.99 | per month |
| Backshift Pro Yearly | $24.99 | per year |
| Backshift Pro Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Knitventory free?

Knitventory costs $0.99, with no in-app purchases.

### Is Shift Calendar free?

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

### Do Knitventory or Shift Calendar have ads?

Neither Knitventory nor Shift Calendar shows ads.

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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.*