# SyncML PRO 4 vs 4service NFC

The clearest difference is price: 4service NFC at Free against SyncML PRO 4's $11.99. 4service NFC also leads on update cadence (every 2 months vs every 17 months). SyncML PRO 4's advantage is rating (5.0 vs 1.0) and iOS requirement (10.0 vs 15.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.

4service NFC is free to download; SyncML PRO 4 costs $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SyncML PRO 4 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

SyncML PRO 4 ships an update every 17 months, 4service NFC every 2 months. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | SyncML PRO 4 | 4service NFC |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/syncml-pro-4/id1165983946/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/4service-nfc/id1468855263/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 4 MB | 75 MB |
| Requires iOS | **10.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lukas Zeller](https://appshunter.io/developer/299521020) | [Tridonic](https://appshunter.io/developer/959827274) |

## What reviewers say

### SyncML PRO 4

[App page](https://appshunter.io/ios/app/syncml-pro-4/id1165983946)

This app facilitates synchronization of contacts and calendars using the SyncML standard. It is designed for users who require this specific legacy technology, often in organizational settings, and need to connect to a SyncML-compliant server. It offers calendar views and enhanced contact group management.

**Highlights:** SyncML contacts and calendar synchronization, Connects to SyncML compliant servers, Acts as a local SyncML server, Calendar month, day, week, and list views, Contact group assignment feature

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

**In-app purchases:** none


### 4service NFC

[App page](https://appshunter.io/ios/app/4service-nfc/id1468855263)

Configure and analyze Tridonic LED drivers with NFC interfaces. Easily set driver parameters, transfer configurations, and read fault data on-site. Retrieve product information by scanning NFC tags or QR codes.

**Highlights:** Configure LED output current, Set device operating mode (DALI, etc.), DALI addressing, Corridor function configuration, ChronoSTEP configuration, Transfer driver settings, Analyze driver fault data

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SyncML PRO 4 free?

SyncML PRO 4 costs $11.99, with no in-app purchases.

### Is 4service NFC free?

4service NFC is free to download, with no in-app purchases.

### Which has better reviews, SyncML PRO 4 or 4service NFC?

SyncML PRO 4 is rated higher. SyncML PRO 4 averages 5.0 out of 5 from 1 ratings, while 4service NFC averages 1.0 from 2 ratings.

### Do SyncML PRO 4 or 4service NFC have ads?

Neither SyncML PRO 4 nor 4service NFC shows ads.

### Which is updated more often, SyncML PRO 4 or 4service NFC?

SyncML PRO 4 ships an update every 17 months, and 4service NFC every 2 months. Most recently, SyncML PRO 4 was updated on October 5, 2026 and 4service NFC on September 26, 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.*