# Relation Link vs Check In

The clearest difference is iOS requirement: Relation Link at 15.1 against Check In's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Relation Link sells 2 one-off in-app purchases and Check In sells 1 in-app purchase, starting at $6.99 per year. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Relation Link | Check In |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 50 MB | 9 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RIOU Kevin](https://appshunter.io/developer/1694327535) | [Rajesh Yadav](https://appshunter.io/developer/1894773198) |

## What reviewers say

### Relation Link

[App page](https://appshunter.io/ios/app/relation-link-loved-message/id6765677682)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Just for me | $2.99 | one-time |
| For me & partner | $3.99 | one-time |


### Check In

[App page](https://appshunter.io/ios/app/check-in-last-message/id6772049106)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Premium | $6.99 | per year |


## Frequently asked questions

### Is Relation Link free?

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

### Is Check In free?

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

### Do Relation Link or Check In have ads?

Neither Relation Link nor Check In shows ads.

### Which is updated more often, Relation Link or Check In?

Relation Link ships an update weekly, and Check In weekly. Most recently, Relation Link was updated on October 24, 2026 and Check In on October 25, 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.*