Simpu

Simpu is a unified customer communication platform for small businesses that need to handle customer conversations across multiple channels with a team.

Key capabilities include:

• Shared Inbox for multiple channels: centralizes customer interactions from email, chat, and social media in one place so teams can collaborate on replies and keep context.
• SMS Marketing: sends SMS broadcasts at scale for promotional offers, reminders, and OTPs to reach customers directly on their phones.
• Email Marketing: builds personalized email campaigns designed to reduce spam placement, with no monthly subscription fee for email marketing, users pay for what they use.
• API access: provides API documentation for integrating Simpu into other tools and workflows.

Available on Web (separate web apps for Inbox, SMS, and Email Marketing) and via API.

It targets B2B small businesses that struggle to manage day-to-day customer support and sales conversations spread across multiple team inboxes and channels.

Notable for combining shared-inbox collaboration with built-in SMS and email marketing under a pay-per-use approach for messaging, which can suit teams that prefer usage-based costs over monthly marketing subscriptions.