136+ iOS apps curated and reviewed
The best syncml lite 4 apps on iPhone average 4.1★ across 136+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 1.7★ (3) | No | No | May 2026 |
| 2 |  | $11.99 | 5.0★ (1) | No | No | May 2026 |
| 3 |  | $14.99 | 1.0★ (2) | No | No | Jul 2026 |
| 4 |  | Free | 4.5★ (5.8K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.6★ (15K) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.4★ (22K) | Yes | Yes | Jul 2026 |
| 7 |  | Free | 4.6★ (116) | Yes | No | Jul 2026 |
| 8 |  | Free | 4.2★ (24K) | No | Yes | Jul 2026 |
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.
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.
This app synchronizes contacts, tasks, and calendars using the SyncML standard. It's designed for users who need to connect with older systems or specific organizational requirements that rely on this legacy synchronization technology.
This cloud-based address book simplifies contact management by syncing across devices and accounts. It offers features like contact deduplication, business card scanning, and automatic enrichment to keep your information organized and up-to-date.
Effortlessly synchronize your contacts across Google, Outlook, and iPhone. This reliable app ensures your contact information is up-to-date everywhere with 2-way syncing and support for all contact fields and photos.
Identify unknown callers in real-time, block spam automatically, and keep your contacts updated with real photos. Search any number worldwide and manage your address book with smart tools.
Streamline your address book with a comprehensive contact management solution. Easily sync, organize, import, export, and merge duplicates to keep your contacts clean and accessible. Supports multiple local address books and contact photos.
This powerful calendar and task management app offers intuitive natural language input for event creation, multiple calendar views, and robust task integration. It provides weather forecasts and advanced features like meeting polls and video conferencing integration for premium users.
Easily back up and restore your phone's address book without needing a computer or cloud sync. Send contacts in a universal format via email for simple transfer and recovery on any device. Offers regular backup reminders and multiple export options.
This app helps you manage customer relationships by tracking conversations, organizing contacts, and scheduling follow-ups. It allows you to store notes, files, and documents, and offers features like contact mapping and email templates to build stronger connections and never miss opportunities.
Securely back up and sync files, photos, and music across all your devices. Protect your digital life with advanced encryption and easily share or restore files. Offers automatic syncing and remote data wiping for enhanced security and convenience.
Manage your contacts, calendar, tasks, and notes in one app. Syncs seamlessly with popular PC CRMs like Outlook, Act!, and GoldMine, offering direct USB, Wi-Fi, and cloud synchronization options. Features persistent alarms, custom fields, and multiple task management styles.
Securely transfer files and back up photos between your devices without using third-party servers. Enjoy unlimited storage and speed, with direct peer-to-peer transfers for privacy and efficiency. Supports all file types across various platforms.
This app transforms your phone's contacts into a private social network. Organize people, share updates, and stay connected without sharing your data with large tech companies. It offers features for communication, event planning, and contact management.
Easily sync or move contacts between any two accounts on your device. Merge corporate contacts into iCloud or manage various account types like Outlook, Exchange, and Google. Offers flexible sync modes and filters to manage your contact data efficiently.
Easily back up, export, and restore all your phone contacts with a single tap. Securely store backups in the cloud and synchronize them across devices. Set reminders for regular backups to prevent data loss.
Get a virtual second phone number for affordable local and international calls and unlimited texting worldwide. Manage multiple numbers on one device, block spam, record calls, and share media easily. Stay connected globally without high costs.
This app helps you manage your busy schedule with a user-friendly interface. Easily track daily, weekly, monthly, and yearly views, and color-code your events for better organization. It syncs with popular accounts and offers productivity tools for efficient event management.
Seamlessly integrate your iPhone with your Windows PC. Access calls, messages, notifications, and contacts directly from your computer. Easily share files between devices for enhanced productivity.
This meeting platform simplifies collaboration by eliminating pins and downloads. It offers live video, screen sharing, and participant identification for seamless interaction. Join or start meetings easily from your mobile device.