The HTCsense.com services let HTC phone users back up contacts, messages, call history and geotagged photos in the cloud.
The backup service will become unavailable after April 30, when HTC plans to delete customer data, the company said on the . In the meantime, users are encouraged to download their data. HTC is offering tips on how to do so.
It also suggests that users visit Google Play, the recently rebranded Android Market, to look for a backup application that might meet their needs.
HTC didn't say when a new service would be launched.
HTC said it planned to launch Sense 4, the latest version of the software that runs on its Android phones. It said that users of its forthcoming HTC One series of phones, which will come with Sense 4, would be able to use 25 gigabytes of free storage with Dropbox. The service will be integrated with Sense 4 so that users can easily store photos online at Dropbox, HTC said.