# iSign vs POS for Cayan & Star

The clearest difference is rating: POS for Cayan & Star at 5.0 against iSign's 2.0. POS for Cayan & Star also leads on device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

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

POS for Cayan & Star holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

iSign ships an update every 5 weeks, POS for Cayan & Star every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | iSign | POS for Cayan & Star |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/isign-in/id866715213/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pos-for-cayan-and-star/id1490427751/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 65 MB | 35 MB |
| Requires iOS | 12 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ATSoft, Inc.](https://appshunter.io/developer/512793451) | [PointOfSale Inc](https://appshunter.io/developer/421352041) |

## What reviewers say

### iSign

[App page](https://appshunter.io/ios/app/isign-in/id866715213)

This business application serves as a digital sign-in pad for customers, integrating with specific point-of-sale systems. It facilitates customer management and can connect with iNailPOS, iStylePOS, and the Nails 123 System.

**Highlights:** Digital customer sign-in pad, POS system integration, Customer management, Connects with iNailPOS, Connects with iStylePOS, Compatible with Nails 123 System

**Features:** macOS Compatibility

**In-app purchases:** none


### POS for Cayan & Star

[App page](https://appshunter.io/ios/app/pos-for-cayan-and-star/id1490427751)

This mobile point-of-sale system integrates with payment terminals and receipt printers for businesses. It allows for wireless invoice sending and streamlines sales operations, offering a professional solution without high costs.

**Highlights:** Integrated card payments via WiFi, Wireless receipt printing, Mobile POS operations on iPad, Send invoices wirelessly, Reduces sales line wait times, Suitable for outdoor and trade show sales

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iSign free?

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

### Is POS for Cayan & Star free?

POS for Cayan & Star is free to download, with no in-app purchases.

### Which has better reviews, iSign or POS for Cayan & Star?

POS for Cayan & Star is rated higher. iSign averages 2.0 out of 5 from 1 ratings, while POS for Cayan & Star averages 5.0 from 1 ratings.

### Do iSign or POS for Cayan & Star have ads?

Neither iSign nor POS for Cayan & Star shows ads.

### Which is updated more often, iSign or POS for Cayan & Star?

iSign ships an update every 5 weeks, and POS for Cayan & Star every 3 weeks. Most recently, iSign was updated on November 1, 2026 and POS for Cayan & Star on November 3, 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.*