You can change the storage location to SD card in Settings.
1. Tap ☰ menu icon in the top left corner.
2. Tap ⚙ gear icon in the upper right corner.
3. Under Receive, tap Internal storage.
4. Select SD card.
5. Tap Select.
※ To save files to your SD card, SendAnywhere needs permission to access your SD card. This step is only performed the first time you access the SD card.
※ Due to SD card's own settings, you cannot receive files larger than 4 GB at a time to SD card. If you receive files larger than 4 GB, change the storage location to internal storage, or break them into smaller files that are 4 GB or less to receive them to SD card.