SendApp Professional is a desktop-based messaging tool designed for managing WhatsApp communications at scale. It allows sending bulk messages, organizing contacts into address books, and delivering messages privately to large groups. The system operates using the user's own WhatsApp account and does not require a subscription or per‑message cost. The Professional edition supports up to 200 messages per batch and lifetime access without recurring fees. It does not include scheduling features, and higher‑end cloud or official API versions are not part of the AppSumo deal. The tool supports sending messages to contacts outside the phone’s address book, provided users do not engage in spam‑like behavior to avoid account suspension.

Key Features

Bulk Messaging Send messages to large groups of recipients in structured batches.

• Supports 200 messages per batch
• Recipients receive messages privately as individual messages

Address Book Management Organize contacts into lists for targeted campaigns.

• Create multiple address books
• Manage structured lists for repeated messaging

Use of Personal or Business WhatsApp Account Operates through the user’s existing WhatsApp account.

• No subscription or message fees
• Works with personal or business accounts under platform terms

Support for SMS and Telegram in Broader Ecosystem Part of a wider product line with SMS and Telegram support (not all included in this deal).

• Desktop focuses on WhatsApp
• Other SendApp versions add extended channels

Benefits

Cost‑Effective Communication Single‑purchase lifetime tool without recurring fees.

• No per‑message billing
• No subscription renewals

Efficient Large‑Scale Messaging Manage thousands of recipients more efficiently.

• Segment recipients into manageable groups
• Automate repeated message workflows within allowed limits

Private Delivery for Each Recipient Ensures bulk sends appear as individually sent messages.

• Increases personalization
• Avoids group‑based visibility

Low Technical Barrier Designed for non‑technical users.

• Desktop app interface
• Simple list and message creation