OneSync: Autosync for OneDrive

Contains adsIn-app purchases
15.4K reviews
Content rating
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About this app

This app is an automatic file sync and backup tool. It lets you automatically synchronize files and folders with Microsoft OneDrive cloud storage and with your other devices. It is an ideal tool for photo sync, document and file backup, automatic file transfer, automatic file sharing between devices,...

New files in your cloud account are automatically downloaded onto your device. New files in your device are uploaded. If you delete a file on one side, it will be deleted on the other side. It works across multiple devices (your phone and your tablet). If their folders are synced with the same cloud account, they will be kept in sync with each other.

This is how OneDrive works on computers but not on Android. Two-way automatic synchronization should be an essential function of the official app. For whatever reason, it is not the case. OneSync is here to fill the gap.

All file transfers and communications between user devices and cloud storage servers are securely encrypted and do not go through our servers. No outsiders will be able to decrypt, see or modify any file contents.


• Full two-way automatic synchronization of files and folders
• Many sync modes. Not only two-way, you can also choose Upload only, Upload then delete, Download only, Download mirror,...
• Very efficient, consumes almost no battery
• Easy to set up. Once set up files will be kept in sync without any effort from users
• Works reliably under ever changing network conditions on your phone
• Monitors battery level, WiFi/3G/4G/LTE connectivity and adapts its behavior according to user preferences
• Configurable autosync interval: 15 minutes, 30 minutes, every hour,...

If you like this app, please consider upgrading to premium version. By doing so you support the development efforts and get access to premium features. You can upgrade via in-app purchase.


• Sync multiple pairs of folders
• Upload files larger than 10 MB
• Sync your entire cloud account with a folder in your device
• Sync with multiple accounts
• Sync with SharePoint sites
• Protect app settings with passcode
• No ads displayed in the app
• Email support by developer


Please check out our website ( for more information about the app, including User's Guide ( and FAQ ( If you run into any issues or have suggestions for improvements, don't hesitate to email us at We will do our best to assist you.
Updated on
Mar 21, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted
15.4K reviews
Sheldon Dedek
January 4, 2023
Liking this...A Lot! Been trying to keep a chosen folder on SDCard somewhat current with updates to OneDrive and eventually SharePoint. This app does it. It has checked all the boxes. However, app is slow to transfer / copy. Probably an Android thing. Would love to see a bulk transfer process like folder xyz compressed to zip, transferred, then decompressed. Individual files sync from there. Slows down when have folder w/ 50+ pics & vids & 250MB+ size. Detection of modified files is iffy.
13 people found this review helpful
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David Lee
November 10, 2022
THE best app on my phone! Upgrading to pro is $ well spent. It's a simple, logical UI. It's fast.. Once everything is uploaded, it autosyncs 100GB of internal/external folders and files in less than a minute. Best feature is not dealing with the limitations of the Onedrive app.. I can sync anything on my phone to any folder in Onedrive. One thing that could be improved is the documentation/examples of the filters. But.. Awesome app, nonetheless!
21 people found this review helpful
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Alan Shadduck
October 30, 2022
After running the free version a couple weeks successfully, I was greeted with a disappointment when paying for the upgrade: am unable to create a folder pair to sync an internal storage folder to SD card (only to cloud storage). Would be 5 stars if this were an option. Instead I had to purchase a separate app to automatically move files first to SD card from internal, then sync with this app from SD card to OneDrive.
14 people found this review helpful
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What's new

- Various bug fixes and some UI improvements

If you like our app, please give it a nice 5-star rating. If you run into issues or have questions, don't hesitate to email us at We'll follow up.