Synchronize Ultimate

A Google user

Works well after fiddling a bit. It constantly redownloaded dozens of files that haven't changed since last sync until I played with the settings by trial and error. Documentation is virtually non-existent, but the developers are responsive to questions, and the myriad of settings, while daunting at first, give an unequaled amount of customization. I just wished the defaults worked better!

BebéTechManiac 2018

Great app, tried a lot of similar apps, but this app is the easiest one. Once you have one profile setup correctly for what you want to do, if the other folders you want the same the clone feature will help, the a few changes and easy you have another profile. You can set schedule or run the sync manually. If you add a new file or edit a file on a folder it can be sync to the destination without overwriting all over again... has a smart file check.

A Google user

This is missing one really easy to implement feature. I don't see the ability to preserve date/time of the file when doing the copy. I often have to look at the file name on my server to determine when the picture was taken. Whenever it does synchronize copy, the file stamp of the file on my server is when the copy was done and NOT when the picture was taken. I'll bump to 5 star if you fix that.

A Google user

Does exactly what i needed it to do. I have a local NAS and Nextcloud on my network that it backs up to regularly. No issues so far. The app complained that it cannot connect to my nextcloud server, but after trial and error i found out that it was because i didn't have a self signed certificate for https. Please keep up the good work devs, this is the best syncing app I've used so far.

A Google user

it's really impressive that it can synchronize to a USB mass storage device portable storage device but unfortunately it does so kind of slowly. I took a couple hours to find all the files that need to sync for a folder with a couple hundred thousand files in it. Edit: I've been told they are working on the speed.

A Google user

Dev response is nonsense... The app uses a temp directory in the internal disk. Cannot change the temp folder to an external disk. My internal disk is not enough. the only workaround is to have synctemp located inside "/storage/externaldisk/Android/data/com.ice..." Also it's still puzzling why this app has to copy the entire file from another folder to this temp folder before uploading it to the cloud. very inefficient implementation and I must look for an alternative at this point.

A Google user

Update: MEGA works, yes!!!Such a useful app, having the ability to backup an online storage from OneDrive to your phone for offline backup...no more extra USBs to carry for me! However, MEGA doesn't seem to be working at the moment, but the developer is looking into the bug now. Kudos to them!

M Roberts

Pro: Works over FTP, remembers settings, syncs files and folders. Cons: SLOW compared to other ftp (8 hours to transfer something taking 1 hour over better ftp app) Leaves gigabytes of temp files, doesn't clean up after itself. Relaunches a copy of itself on every access, and so must be closed a few dozen times to exit the app.

Chris Morris

I have tried and bought a number of file sync apps over the last year to sync with my NAS and cloud providers. After using this for a few months, I have removed the others and intend using just this app. It does everything I could possibly want and works fine across all my devices. - Highly recommended.

Michael Woods

Don't kid yourself. This app is not easy to use. But it will work with almost any cloud or remote file connection you can throw at it. Personally, I use it to turn my phone into a mobile backup of important files, most of which are on my Synology NAS. I tried WebDAV and it works but it craps out on too many files and seems to redownload too much... SFTP seems to work better, even if technically slower... It seems like I'll have to play with it to figure out what works best.