Comparison

SyncML PRO 4 vs 4service NFC

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SyncML PRO 4

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
Read full description

Please read the following desciption before buying this app! SyncML PRO 4 is a niche app, suitable only when you need synchronizing contacts and calendar with a server or service which uses a standard called SyncML. The app does not support any other synchronisation technology! So please buy this app only if you know for sure that SyncML-based synchronisation is really what you need! This may be the case when the IT people of your organisation say so, and maybe even explicitly recommend using SyncML PRO to synchronize calendars and contacts. In any case, please realize that for using this app, you need to know the URL of your syncml server, the login user to use, and the so called server paths for contacts/calendar. Only the provider of the SyncML service knows these details and can support you in establishing sync with his SyncML server. We as makers of the SyncML client app cannot! By now, SyncML is a legacy standard. It was invented in 2000, and many of that time's feature phones did support it. Since then, it has been largely superseded by other technologies, most notably CalDAV and CardDAV, which iOS supports out of the box without any extra app. But SyncML still exists, and for some older calendaring systems, it may be the only way to synchronize. For those cases, SyncML PRO 4 exists. SyncML PRO 4 is a rework of the former SyncML PRO app, to allow using SyncML on iOS 10 and later (the original SyncML PRO app only works up to iOS 9). But please note that SyncML PRO 4 does not provide new features over the original SyncML PRO - except for a contact list view with a way to easily assign contacts to groups. Otherwise SyncML PRO 4 just carries the original SyncML PRO functionality forward to make it usable with iOS10 and later. So now that you are certain SyncML based synchronisation is what you need - here's the summary for SyncML PRO 4: • based on a mature and extensively interoperability tested SyncML engine, which powers many SyncML client and server products for different platforms (libsynthesis). • allows synchronizing all or selected iOS calendars to a SyncML compliant server or service in the internet or in the local network. • can act as SyncML server in the local WiFi network (e.g. to keep really old mobiles in sync with an iOS device) • has built-in month, day, week and list views for the iOS calendar (same as in original SyncML PRO) • has a contacts list for the iOS contacts, and allows quickly assigning/removing contact group membership (that's a new feature in SyncML PRO 4) Please visit the plan44.ch web page (see support link below) for support and FAQ, as well as documentation for download.

About

4service NFC

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
Read full description

Define. Transfer. Analyse. Users of the 4service NFC app can configure and analyse Tridonic LED drivers with NFC interface free of charge. Application The 4service NFC app enables quick and easy configuration and analysis of Tridonic LED drivers. This makes the work of installation engineers, maintenance officers and employees in similar fields significantly easier. Functions The following functions can be configured via the app, provided they are supported by the respective Tridonic product. Set the driver parameters: - LED output current Set the LED output current (in mA) to adjust the brightness - Device operating mode Selection of the device operating mode (DALI, corridorFUNCTION, chronoSTEP, etc.). - DALI addressing Set the DALI short address - corridorFUNCTION Configuration of the corridorFUNCTION (light level, fade times, etc.). - chronoSTEP Configuration of the chronoSTEP profiles EZ easy addressing decoder An addressing tool is available to convert the Bi-colour LED binary identification signal to a DALI address of between 0 to 63. Easily transfer driver parameter settings With the copy function, you can quickly and easily copy a device's settings to identical devices. This saves time when replacing faulty devices and when commissioning several identical luminaires. Transfer configurations from deviceGENERATOR With the app, configuration files that were created with the deviceGENERATOR (ending: *.trgf) can also be transferred on LED drivers. Driver analysis If an LED driver is faulty, the data memory can be readout. This means an initial analysis of the causes is already possible on site. Product information Retrieve further information about Tridonic products, simply scan the NFC tag or the QR code on Tridonic devices. The following prerequisites must be met before you can use the app: - Use of an LED driver with NFC interface from Tridonic. - NFC reader with Bluetooth connection from FEIG ELECTRONIC or Tertium Technologies. Alternatively, the internal NFC reader can also be used on different smartphones. - Active Internet connection for first-time use and for updates. An Internet connection is not absolutely necessary for ongoing operation. To ensure that the app works properly, however, the device-specific data must always be current, i.e. regularly updated. - If any of the driver's functions are protected by the luminaire manufacturer (e.g. by a password), these cannot be changed even with the app. The 4service NFC app is itself is free of charge. But costs might be incurred for the required internet connection.

Screenshots

SyncML PRO 43 screens
4service NFC4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

SyncML PRO 4 ships an update every 17 months, 4service NFC every 2 months. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

Scorecard5 real differences · 5 level
SyncML PRO 4 versus 4service NFC: the parameters behind the verdict, then further details
ParameterSyncML PRO 44service NFC
Price$11.99Free — better
Rating5.0 (1 ratings) — better1.0 (2 ratings)
Positive reviews—0.0% of reviews
Number of ratings12 — better
Update frequencyEvery 17 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS10.0 — better15.5
Further details — not scored
Size4 MB75 MB
Age rating4+4+
DeveloperLukas ZellerTridonic

Customer experience

SyncML PRO 4

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

4service NFC

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

SyncML PRO 4

No in-app purchases

None

4service NFC

No in-app purchases

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 September 27, 2026 and 4service NFC on September 26, 2026.

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