Bulk SMS is a service that allows businesses and organizations to send large volumes of SMS messages to a wide audience simultaneously. It's often used for marketing campaigns, notifications, and alerts.

Promotional SMS is used for marketing and advertising purposes, such as sending offers, discounts, and promotions. Transactional SMS is used to send essential information such as account updates, order confirmations, and OTPs (One-Time Passwords).

OTP SMS stands for One-Time Password SMS. It is a secure, single-use password sent to a user's mobile phone via SMS, commonly used for authentication purposes in online transactions and logins.

Bulk SMS can enhance customer engagement, improve communication efficiency, increase brand awareness, and drive sales by reaching a large audience quickly and cost-effectively.

Bulk Email is a service that allows businesses to send a large volume of emails to multiple recipients at once. It's commonly used for newsletters, marketing campaigns, and informational emails. Bulk email services typically include tools for managing email lists, designing emails, and tracking campaign performance.

Yes, there are legal regulations for sending Bulk SMS, which vary by country. Generally, businesses must obtain consent from recipients, provide an option to opt-out, and follow guidelines to ensure messages are not spammy or intrusive.

The cost of Bulk SMS and related services varies based on factors such as the volume of messages, the provider, and additional features like analytics and customization. It's best to compare different service providers to find a plan that fits your budget and needs.