# ACS SmartAccess vs CalypsoSpray

The clearest difference is update cadence: CalypsoSpray at every 6 weeks against ACS SmartAccess's every 10 months. ACS SmartAccess's advantage is iOS requirement (8.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

ACS SmartAccess ships an update every 10 months, CalypsoSpray every 6 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ACS SmartAccess | CalypsoSpray |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/acs-smartaccess/id1142454409/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 22 MB | 18 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Advanced Card Systems Ltd.](https://appshunter.io/developer/573447624) | [Calypso Instruments](https://appshunter.io/developer/928168289) |

## What reviewers say

### ACS SmartAccess

[App page](https://appshunter.io/ios/app/acs-smartaccess/id1142454409)

This app demonstrates access control features using compatible ACS Bluetooth readers and smart cards. It requires specific hardware to unlock its full functionality for secure access management.

**Highlights:** Access Control demonstration, Bluetooth reader integration, Smart card compatibility, Secure access management

**Features:** macOS Compatibility

**In-app purchases:** none


### CalypsoSpray

[App page](https://appshunter.io/ios/app/calypsospray/id6769805534)

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

**In-app purchases:** none


## Frequently asked questions

### Is ACS SmartAccess free?

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

### Is CalypsoSpray free?

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

### Do ACS SmartAccess or CalypsoSpray have ads?

Neither ACS SmartAccess nor CalypsoSpray shows ads.

### Which is updated more often, ACS SmartAccess or CalypsoSpray?

ACS SmartAccess ships an update every 10 months, and CalypsoSpray every 6 weeks. Most recently, ACS SmartAccess was updated on November 2, 2026 and CalypsoSpray on October 31, 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.*