# DataLogger vs ACS SmartAccess

The clearest difference is rating: DataLogger at 2.0 against ACS SmartAccess's 1.0. DataLogger also leads on update cadence (every 4 months vs every 10 months). ACS SmartAccess's advantage is iOS requirement (8.0 vs 12.0). On price, review sentiment, ratings volume 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.

DataLogger holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

DataLogger ships an update every 4 months, ACS SmartAccess every 10 months. The most recent releases landed on October 4, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | DataLogger | ACS SmartAccess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (3 ratings)](https://appshunter.io/ios/app/datalogger/id611115496/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/acs-smartaccess/id1142454409/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 1 MB | 22 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MSR Electronics GmbH](https://appshunter.io/developer/611115499) | [Advanced Card Systems Ltd.](https://appshunter.io/developer/573447624) |

## What reviewers say

### DataLogger

[App page](https://appshunter.io/ios/app/datalogger/id611115496)

Control MSR data loggers from your mobile device. Configure loggers, view sensor data in real-time, and upload recordings to the cloud. Connects to multiple loggers via Bluetooth Low Energy.

**Highlights:** Control MSR data loggers, Configure logger settings, View sensor data online, Record sensor data, Upload data to MSR Smart Cloud, Connect via Bluetooth Low Energy (BLE)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is DataLogger free?

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

### Is ACS SmartAccess free?

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

### Which has better reviews, DataLogger or ACS SmartAccess?

DataLogger is rated higher. DataLogger averages 2.0 out of 5 from 3 ratings, while ACS SmartAccess averages 1.0 from 2 ratings.

### Do DataLogger or ACS SmartAccess have ads?

Neither DataLogger nor ACS SmartAccess shows ads.

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

DataLogger ships an update every 4 months, and ACS SmartAccess every 10 months. Most recently, DataLogger was updated on October 4, 2026 and ACS SmartAccess on September 24, 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.*