By default, ImageMeter stores all data locally on your device. However, there are several ways how to transfer your images to other devices.
When: This technique works well when you do not have large amounts of data to send or if you want to send images to other people quickly.
How: When you export images, you can choose between a number of different file formats. Usually, you probably are going to export images as JPEG, but these images cannot be edited further even if you reimport them on another device. However, you can also export images in the "ImageMeter Image (IMI)" format. These files can be imported again into ImageMeter running on another device, and you can continue editing them there. Finally, there is the "IMF" file format, which contains a whole folder of images. Just like IMI files, the IMF files can be imported again on another device.
When: Use this technique when you are migrating all your data from one device to a new device. Both devices need to have an SD-card slot.
How: ImageMeter can store its data at several different locations. By default, it uses internal memory, but you can also store it in the public 'Documents' folder, or an SD-card. You can use this to move your images to a new device. To this end, you first move all your images to SD-card on the old device, then plug the SD-card into the new phone and tell ImageMeter on the new phone to read the data from the SD-card. Step by step, it works like this:
Note: This feature is currently in experimental testing and thus limited to syncing the 'inbox' folder. You also currently have to start the synchronization manually. There is a menu item for that.
When: Use this technique when you want to work concurrently with several devices on the same set of images. This technique also works well to transfer large amounts of data between device without SD-card slot.
How: In the ImageMeter settings (Storage → Cloud storage), you can choose a cloud storage provide and connect to your storage account. ImageMeter will sync all of its data to the cloud storage. If you enable cloud storage synchronization also on your second device, all your images are effectively synchronized between both devices via the cloud storage.