
Bulk SMS Services
On average, it takes just 7 minutes to launch an SMS campaign with Sendsei from start to finish. All you need to do is upload your contact list and come up with a short and sweet message - ideally under 160 characters.

Multiple Sender ID Options
You have multiple Sender ID options such as Shared Virtual Number, Dedicated Virtual Number, Shortcode, or a Custom Sender ID. Choosing the right number is important for building your mobile brand.
Custom Variables
Send more relevant messages by pulling custom data straight from your database. Commonly used variables include: customer names, purchase history, payment due dates, and product pricing.
SMS Keywords
Choose a UTF-8 character, emoji, or a standard SMS keyword, then set an autoresponder trigger once someone texts into your number. Multiple keywords can run at once.
Unique Link Tracking
Track campaign performance with the help of our unique link tracking system. Cross-reference your SMS statistics with any additional internal analytics.
UTF-8 Compatibility
Special UTF-8 characters allow you to send text messages in over 650+ languages. This also includes any unicode compatible emoji or symbol.
Custom Opt-out
All messages unless otherwise specified in the spam laws, must include an opt-out. Sendsei gives you the option to try multiple opt-out options including custom URL opt-outs.