# Sensa Checkin vs SmartLink Nail Customer

The clearest difference is iOS requirement: SmartLink Nail Customer at 11.0 against Sensa Checkin's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Sensa Checkin | SmartLink Nail Customer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 37 MB | 56 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BLogic Systems](https://appshunter.io/developer/482435148) | [Smartlinkusa](https://appshunter.io/developer/1766729242) |

## What reviewers say

### Sensa Checkin

[App page](https://appshunter.io/ios/app/sensa-checkin/id6447760106)

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartLink Nail Customer

[App page](https://appshunter.io/ios/app/smartlink-nail-customer/id6670556623)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sensa Checkin free?

Sensa Checkin is free to download, with no in-app purchases.

### Is SmartLink Nail Customer free?

SmartLink Nail Customer is free to download, with no in-app purchases.

### Do Sensa Checkin or SmartLink Nail Customer have ads?

Neither Sensa Checkin nor SmartLink Nail Customer shows ads.

### Which is updated more often, Sensa Checkin or SmartLink Nail Customer?

Sensa Checkin ships an update every 2 months, and SmartLink Nail Customer every 2 months. Most recently, Sensa Checkin was updated on October 9, 2026 and SmartLink Nail Customer on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*