Starting with version 24, Bluecoins now support adding photos into transactions or reminders.
To add a photo, click the camera icon next to the item field in the transaction screen. Upon clicking, 2 options will be presented- add photo via camera or with the photo gallery app. The photos will be stored under Phone Storage > Bluecoins > Pictures folder.
You may be able to add up to three photos per transaction or reminder. You may be able to add or remove photos when editing a transaction.
The photos will be saved in medium quality and resolution format to save phone storage space.
Additionally, premium version includes the ability to synchronize your photos to your online Dropbox backup. With this feature, photos can be access from all devices that linked to the same Dropbox account.