# Shift Pair vs InSync

Shift Pair and InSync are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Shift Pair sells 4 in-app purchases, starting at $2.99 per 7 days and InSync sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Shift Pair | InSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 18 MB | 16 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [凤英 刘](https://appshunter.io/developer/1822180550) | [DANIEL BENITO DIAZ](https://appshunter.io/developer/1865258168) |

## What reviewers say

### Shift Pair

[App page](https://appshunter.io/ios/app/shift-pair-rota-calendar/id6797206830)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Access | $2.99 | per 7 days |
| Shift Pair Pro Weekly Trial | $2.99 | per 7 days |
| Monthly Pro Access | $6.99 | per month |
| Yearly Pro Access | $24.99 | per year |


### InSync

[App page](https://appshunter.io/ios/app/insync-calendar-for-two/id6798864347)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InSync Pro Monthly | $1.99 | per month |
| InSync Pro Yearly | $17.99 | per year |
| Un café | $1.99 | one-time |
| Una caña | $2.99 | one-time |
| Una comida. | $8.99 | one-time |


## Frequently asked questions

### Is Shift Pair free?

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

### Is InSync free?

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

### Do Shift Pair or InSync have ads?

Neither Shift Pair nor InSync 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.*