# SyncML LITE 4 vs u.trust LAN Crypt

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.

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

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.

## The numbers

| Metric | SyncML LITE 4 | u.trust LAN Crypt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (3 ratings)](https://appshunter.io/ios/app/syncml-lite-4/id1170925516/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 6 MB | 12 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lukas Zeller](https://appshunter.io/developer/299521020) | [conpal GmbH](https://appshunter.io/developer/1558460663) |

## What reviewers say

### SyncML LITE 4

[App page](https://appshunter.io/ios/app/syncml-lite-4/id1170925516)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### u.trust LAN Crypt

[App page](https://appshunter.io/ios/app/utrust-lan-crypt/id1558460661)

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*