Best Active-Sync Apps

185+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated June 2026

If you already know FITIV Sync for Fitbit Activity, this is the deeper bench. 185+ active-sync apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Top Picks for Active-Sync

FITIV Sync for Fitbit Activity#1

FITIV Sync for Fitbit Activity by MotiFIT Fitness Inc.

Sync Fitbit to Apple Health
Editor's Choice
πŸ’ͺ Health & Fitness
4.5😞(1.6K ratings)
FreeAds
FITIV Sync for Fitbit Activity screenshot 1
FITIV Sync for Fitbit Activity screenshot 2
FITIV Sync for Fitbit Activity screenshot 3
FITIV Sync for Fitbit Activity screenshot 4
FITIV Sync for Fitbit Activity screenshot 5

Sync your Fitbit workout and health data to Apple Health with FITIV Sync. Choose which metrics to sync and keep all your health info in one place for better analysis and tracking. Find out more at https://www.fitiv.com/.

What We Love

  • πŸ‘ Works as advertised
  • πŸš€ Seamless integration
  • πŸ’‘ Transfers historical data

Room to Improve

  • πŸ› Sync issues
  • πŸ› Crashes
  • πŸ› Compatibility problems
Polar Flow#2

Polar Flow by Polar Electro Oy

Sync & Analyze
Strong Contender
πŸ’ͺ Health & Fitness
4.6😐(49K ratings)
FreeIn-App Purchases
Polar Flow screenshot 1
Polar Flow screenshot 2
Polar Flow screenshot 3
Polar Flow screenshot 4
Polar Flow screenshot 5
Polar Flow screenshot 6

Track all your activities, from running to swimming, with detailed insights and analysis. Stay on top of your fitness goals and progress with this comprehensive activity tracking app. Download now to start optimizing your workouts!

What We Love

  • πŸš€ Accurate heart rate monitoring
  • πŸ”‹ Good battery life
  • πŸ‘ Detailed workout data and analysis
  • πŸ‘ Intuitive and user-friendly app

Room to Improve

  • πŸ› Connectivity and syncing issues
  • πŸ› Unreliable sleep tracking
  • πŸ› Slow GPS initialization
Power Sync: Fitness to Health#3

Power Sync: Fitness to Health by HDIDI LTD

Auto Sync Step Tracker Data
Worth Considering
πŸ’ͺ Health & Fitness
4.5😞(12K ratings)
FreeIn-App Purchases
Power Sync: Fitness to Health screenshot 1
Power Sync: Fitness to Health screenshot 2
Power Sync: Fitness to Health screenshot 3
Power Sync: Fitness to Health screenshot 4
Power Sync: Fitness to Health screenshot 5
Power Sync: Fitness to Health screenshot 6

Effortlessly sync your complete Fitbit history to Apple Health in one click with our app. We prioritize user data privacy and securely transfer various fitness data types without storing any information. Start integrating your Fitbit data into Apple Health today for a seamless health tracking experience!

What We Love

  • πŸš€ Seamless integration with Fitbit
  • πŸ“Š Comprehensive health data tracking
  • ⏱️ Convenient one-click syncing
  • πŸ”’ Respects user privacy

Room to Improve

  • πŸ”‘ Paywall for most features
  • πŸ› Sync issues and data inaccuracies
  • πŸ€” Confusing setup and navigation

More Active-Sync apps to explore

4
Resilio Sync
Resilio Sync
Resilio Sync
File transfer and photo backup
Free

Transfer files securely and effortlessly across devices with this app. Enjoy private cloud storage, automatic camera backup, direct transfers, and support for all file types. Say goodbye to storage limits and sync with ease!

πŸ“Š Productivity
(844)
5
Sync.me - Caller ID & Contacts
Sync.me - Caller ID & Contacts
Sync.me - Caller ID & Contacts
Block Spam & Identify Callers
Free

An app that identifies unknown callers, blocks spam calls, and keeps contacts organized with social updates. Improve your calling experience and stay connected effortlessly.

🌐 Social Networking
(22K)
6
Contacts Sync: Google & More
Contacts Sync: Google & More
Contacts Sync: Google & More
Sync Google, Outlook, & More!
Free

Effortlessly sync your contacts between your Android phone and Google account to ensure all your contact information is backed up and up-to-date. Stay organized and never lose a contact again - try it now!

πŸ“Š Productivity
(1.7K)
7
Fitbit Health Sync
Fitbit Health Sync
Fitbit Health Sync
by Praveen Murugesan
Free
πŸ’ͺ Health & Fitness
(1)
8
MΓΆbius Sync
MΓΆbius Sync
MΓΆbius Sync
File sync with Syncthing
Free

"Sync your files seamlessly between iOS devices and other supported devices using MΓΆbius Sync. Enjoy multiple folder and device support without relying on cloud services. Try it out for free or unlock unlimited file syncing with a one-time purchase."

πŸ“Š Productivity
(122)
9
Radio Wave Sync
Radio Wave Sync
Radio Wave Sync
Sync Radio Controlled Watch
Free

Sync Radio Wave is an application designed to help calibrate radio-controlled watches that may struggle to receive time signals. By simulating various time wave signals, including those from China, USA, Japan, Germany, and Britain, it offers a solution to accurately sync watches. Utilizing a "Beast Mode" for faster synchronization, users can easily calibrate their watches by following simple steps and ensuring a noise-free environment for optimal performance. For inquiries or support, contact the developer via QQ or email.

πŸ”§ Utilities
(853)
10
IDrive Online Backup
IDrive Online Backup
IDrive Online Backup
Cloud Backup, Sync, File Share
Free

Protect your digital life with secure mobile backup, file syncing, and sharing. Back up contacts, photos, videos, and more with private key encryption and access your data from anywhere.

πŸ“Š Productivity
(4.9K)
11
Car.Play Connect: Auto Sync
Car.Play Connect: Auto Sync
Car.Play Connect: Auto Sync
Smart Dash & GPS Speedometer
Free

The application is a car connectivity and sync tool that allows users to seamlessly connect their vehicles, access features like navigation, music, and calls, and manage multiple cars in one app. It offers advanced security, wireless CarPlay support, and real-time traffic updates, all while prioritizing safety and ease of use for drivers.

πŸ”§ Utilities
(6.9K)
12
Fitbit to Apple Health Sync Β·
Fitbit to Apple Health Sync Β·
Fitbit to Apple Health Sync Β·
For Fitness & Activity Data
Free

Sync your Fitbit data seamlessly with Apple Health to keep all your fitness information in one place. Track your workouts, steps, heart rate, sleep data, and more effortlessly. Stay on top of your health goals with this convenient data syncing app!

πŸ’ͺ Health & Fitness
(206)
13
SugarSync
SugarSync
SugarSync
by SugarSync, Inc.
Free

Backup and sync your files securely across devices with advanced encryption through this application. Enjoy features like automatic syncing to the cloud, iPhone photo backups, remote data wiping, and flexible file sharing. Try it out with a free 30-day trial! Learn more at the application's website.

πŸ“Š Productivity
(109)
14
Google Fit: Activity Tracker
Google Fit: Activity Tracker
Google Fit: Activity Tracker
Track your health and fitness
Free

Track your health and fitness with a versatile activity tracker that collaborates with WHO and AHA to set activity goals known as Heart Points. It provides detailed workout insights, goal monitoring, and integration with various apps and devices for a holistic view of your health progress. Dive into a healthier lifestyle with Google Fit. Visit https://www.google.com/fit to learn more.

πŸ’ͺ Health & Fitness
(2.2K)
15
VeSync
VeSync
VeSync
Smart & Healthy Living
Free

Control all your smart home devices and appliances from one convenient app. Manage schedules, set timers, monitor energy usage, and control your devices remotely. Simplify your smart home experience today!

🌟 Lifestyle
(245)
16
Boxer - Workspace ONE
Boxer - Workspace ONE
Boxer - Workspace ONE
Omnissa Workspace ONE
Free

Experience seamless email, calendar, and contacts management with an intuitive app tailored to your work style. Enhance productivity with custom features like swipe gestures, quick replies, and easy calendar sharing. Stay secure with touch ID and PIN support. Visit whatisworkspaceone.com/boxer for more information.

πŸ’Ό Business
(77K)
17
SyncGene Sync Contact Calendar
SyncGene Sync Contact Calendar
SyncGene Sync Contact Calendar
Sync Service and Web app
Free

This free cloud synchronization service allows you to automatically sync your Calendar, Contacts, and Tasks across multiple devices, email accounts, and services, including iCloud, Google, and Microsoft. By setting it up once, you can effortlessly keep your digital life up to date and save time, eliminating the need for manual data entry and management.

πŸ“Š Productivity
(20)
18
Gentler Streak Workout Tracker
Gentler Streak Workout Tracker
Gentler Streak Workout Tracker
Activity & Exercise Progress
Free

Embark on a balanced fitness journey with an award-winning health and fitness tracker that seamlessly integrates exercise, rest, and wellness monitoring. Get personalized workout suggestions, track over 140 activities, and receive daily wellness insights for a comprehensive well-being experience.

πŸ’ͺ Health & Fitness
(993)
19
SmartWatch Sync BT Notifier
SmartWatch Sync BT Notifier
SmartWatch Sync BT Notifier
Sync Watch & Bluetooth App
Free

Stay connected to your smartwatch with the ultimate syncing app. Receive notifications, track your fitness goals, and customize settings seamlessly. Download now and enhance your smartwatch experience!

πŸ”§ Utilities
(1.2K)
20
Contacts Mover
Contacts Mover
Contacts Mover
Sync Outlook, Exchange, & More
Free

Easily transfer contacts between different platforms and devices with this user-friendly application. Say goodbye to manual data entry and streamline your contact management today!

πŸ“Š Productivity
(2.7K)