152+ iOS apps curated and reviewed
Looking for free availability sync apps? 19 of our 152+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.4★ (5) | No | No | May 2026 |
| 2 |  | Free | 4.5★ (844) | Yes | No | Jul 2026 |
| 3 |  | Free | 3.2★ (109) | Yes | No | Jul 2026 |
| 4 |  | Free | 4.6★ (15K) | No | Yes | Jul 2026 |
| 5 |  | Free | 4.3★ (5K) | No | Yes | Jul 2026 |
| 6 |  | Free | 3.8★ (122) | No | Yes | Jul 2026 |
| 7 |  | Free | 4.1★ (777) | No | No | Jul 2026 |
| 8 |  | Free was $4.99 | 4.5★ (3.1K) | Yes | Yes | Jul 2026 |
Easily share your free time slots for meetings and appointments. This app integrates with your existing calendars and allows for customized sharing messages and professional calendar invites. Streamline your scheduling process and avoid back-and-forth communication.
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.
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.
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.
Securely back up and sync your mobile data with private key encryption for maximum security. Access your files from anywhere, on any device, and share them easily. Protect photos and videos automatically as they are taken.
Synchronize files between your iOS devices and other Syncthing-supported platforms without relying on cloud storage. Manage multiple folders and remote devices, with options for sandbox or experimental cross-app sandbox syncing.
Securely store, access, and share your files with end-to-end encryption. This cloud storage solution allows you to sync data across all your devices and collaborate with others through shared folders. Protect your sensitive information with robust privacy features.
Seamlessly transfer your fitness data from Fitbit to Apple Health. This app automatically syncs your daily steps, calories, sleep, and more in the background. Enjoy a unified view of your health metrics across platforms.
Seamlessly synchronize your Microsoft Outlook data, including emails, calendars, and contacts, with Google, iCloud, and other cloud services. This companion app enables two-way syncing between your PC and mobile devices like iPhone and iPad, even when Outlook is closed.
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.
Securely synchronize files and folders between your devices. Stream audio and video directly from other devices. Manage file sharing permissions to control access to your data.
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.
This app synchronizes and backs up local folders, network drives, and cloud storage. It offers various sync modes, powerful filtering, and advanced options for professionals, while remaining simple for beginners.
This app synchronizes your phone's photo library to iCloud Drive, preserving album and folder structures. It automatically updates changes, backs up edited photos and videos, and offers a free tier with limitations and a premium subscription for full access.
Easily transfer photos and videos from your mobile device to your computer over Wi-Fi. The app tracks sent items, allowing for quick transfers of new content or selective sending. It supports various file types and offers advanced options for metadata editing and file organization.
Safely back up and synchronize your contacts, photos, and videos across multiple devices. Access your data anytime from any web browser, ensuring it's always online and secure, even if you lose your phone.
Effortlessly synchronize your contacts across Google, iCloud, and Outlook. This reliable app ensures your contact information is up-to-date on your iPhone, supporting two-way syncing and preserving all contact details and groups.
A fast and customizable RSS reader that syncs with popular services and offers offline reading. It presents news in an easy-to-read interface with extensive customization options for a personalized reading experience.
Effortlessly sync, back up, and clean your iPhone contacts with cloud services like Google, Outlook, and Yahoo. Easily export contacts to Excel or vCard, and import them back into your address book. The app intelligently merges duplicates to maintain a tidy contact list.