Comparison

SyncML LITE 4 vs u.trust LAN Crypt

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

Head to head
About

SyncML LITE 4

This app synchronizes iOS contacts with servers using the legacy SyncML standard. It's designed for users who specifically need this older technology, often recommended by IT departments. It can also act as a local SyncML server for older devices.

Highlights
  • Contacts-only synchronization
  • SyncML engine
  • Syncs selected iOS contact stores
  • Acts as local SyncML server
  • Assign/remove contact group membership
Features
Read full description

SyncML LITE 4 is a niche app which synchronizes iOS contacts with a server or service which uses a standard called SyncML. The app does not support any other synchronisation technology! So please install this app only if you know SyncML-based synchronisation is what you need! This may be the case when the IT people of your organisation say so, and maybe even explicitly recommend using SyncML LITE to synchronize 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 path for contacts. 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 Since then, it has been largely superseded by other technologies, most notably CalDAV and CardDAV, which iOS supports out of the box without any extra app.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 systems, it may be the only way to synchronize. For those cases, SyncML LITE 4 exists. SyncML LITE 4 is a rework of the former SyncML LITE app, to allow using SyncML on iOS 10 (the original SyncML LITE app only works up to iOS 9). If you also want to synchronize calendar please consider SyncML PRO 4 or Tasks+Cal+Sync 4. The summary for SyncML LITE 4: • Free app for contacts-only synchronisation - please consider SyncML PRO 4 or Tasks+Cal+Sync 4 if you also want to synchronize calendar data. • based on a mature and extensively interoperability tested SyncML engine, which powers many SyncML client and server products for different platforms (libsynthesis). • synchronizes selected iOS contact stores (address books) 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 a contacts list for the iOS contacts, and allows quickly assigning/removing contact group membership (that's a new feature in SyncML LITE 4) Please visit the plan44.ch web page (see support link below) for support and FAQ, as well as documentation for download.

About

u.trust LAN Crypt

Read full description

User- and group-based use of encrypted files for invisible end-to-end protection. Work with your protected data on all major desktop and mobile platforms. The u.trust LAN Crypt App for iOS The u.trust LAN Crypt App for iOS/iPadOS enables you to work, share and collaborate securely on your iPhone or iPad. It lets you to protect your sensitive documents via state-of-the-art encryption. You have full control which documents to protect, what keys to use and whom to share access with. If managed by your organization, encryption is based on the permissions assigned to you by your system admin. You can open and work with encrypted files from the corporate network. You can also use the app without central management addition and define your own passwords. Scope of functions • reading and editing of encrypted files • encrypting/decrypting files on demand • checking the encryption status of files • importing and taking inventory of keys from your existing u.trust LAN Crypt infrastructure • creation and taking inventory of password-based keys by the user • Simple sharing of password-based keys • supports local as well as cloud and network directories • native support for Microsoft OneDrive • supports operating system 18 and newer (iOS/iPadOS) • English and German language version available The u.trust LAN Crypt system u.trust LAN Crypt encrypts files and directory contents for secure storage and confidential transport, regardless of the target location/system (local hard disk, external storage device, network share, mobile device). The solution uses an automatic file encryption process to effectively secure confidential files. A user is authorized to access the encrypted data by assigning his profile to a unique key group. Unauthorized persons can only see a ciphered, unreadable character set. The encryption solution operates in the background predominantly invisible to the user himself and can be easily managed by IT staff using existing roles and policies. Numerous companies and organizations in business and public administration in Germany and worldwide already rely on u.trust LAN Crypt. • encrypts data and directories on end devices and servers invisibly in the background • consistent protection through persistent data encryption, independent of the storage location – even in transit • user- and group-based encryption at file level – easy to implement, quick to deploy • simple and centralized policy management by using data from existing directory or domain structures • clear separation of roles between system administrators and security officers

Screenshots

SyncML LITE 43 screens
u.trust LAN Crypt4 screens

Verdict

The call

The clearest difference is update cadence: u.trust LAN Crypt at every 4 months against SyncML LITE 4's every 26 months. SyncML LITE 4's advantage is iOS requirement (10.0 vs 18.0). On price, 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

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

UpkeepUpdate frequency

SyncML LITE 4 ships an update every 26 months, u.trust LAN Crypt every 4 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
SyncML LITE 4 versus u.trust LAN Crypt: the parameters behind the verdict, then further details
ParameterSyncML LITE 4u.trust LAN Crypt
PriceFreeFree
Rating1.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 26 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better18.0
Further details — not scored
Size6 MB12 MB
Age rating4+4+
DeveloperLukas Zellerconpal GmbH

In-app purchases

None

SyncML LITE 4

No in-app purchases

None

u.trust LAN Crypt

No in-app purchases

Questions

Is SyncML LITE 4 free?
SyncML LITE 4 is free to download, with no in-app purchases.
Is u.trust LAN Crypt free?
u.trust LAN Crypt is free to download, with no in-app purchases.
Do SyncML LITE 4 or u.trust LAN Crypt have ads?
Neither SyncML LITE 4 nor u.trust LAN Crypt shows ads.
Which is updated more often, SyncML LITE 4 or u.trust LAN Crypt?
SyncML LITE 4 ships an update every 26 months, and u.trust LAN Crypt every 4 months. Most recently, SyncML LITE 4 was updated on October 26, 2026 and u.trust LAN Crypt on October 25, 2026.

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