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WhatsApp broadcast software in Singapore: 8 best tools to blast WhatsApp campaigns

Best tools to blast WhatsApp campaigns

Keeping customers informed and engaged is critical for growth, and WhatsApp Business has become a popular channel for bulk messaging, helping companies reach large audiences quickly. However, managing high-volume outreach can be challenging with WhatsApp’s limited features. This is where specialised WhatsApp broadcast software steps in, providing tools to amplify outreach with automation, segmentation, and analytics.

This article explores the top eight WhatsApp broadcast platforms that streamline bulk messaging and boost customer engagement across every stage of the buyer’s journey, whether for growing brands or established enterprises.

Why do you need a WhatsApp broadcast software?

For any business, regardless of size, engaging with your audience at scale is crucial, as this helps you build relationships, drive conversions, and fuel business growth

Why the free WhatsApp business app isn’t enough

WhatsApp Business App, but the free WhatsApp Business app has the following limitations: 

  • You need to add contacts manually, and you can’t send messages to people who have not saved your number.

  • You can only broadcast to 256 contacts per message, making it inefficient for large-scale outreach.

  • Without segmentation and personalisation features, targeting your messages effectively is difficult.

  • You can’t track or analyse your broadcast message’s performance, so you're left in the dark about how well your campaigns are performing.

WhatsApp broadcast software can solve these problems, helping you to engage a larger audience with the relevant message at the right time. 

Read more: WhatsApp Business API: A definitive guide for your business

How to choose the best WhatsApp broadcast software?

How to choose the best WhatsApp bulk sender software
  1. Always ensure the software is a Meta-verified business solution provider (BSP). WhatsApp does not support third-party BSPs, so working with a verified provider guarantees reliability, security, and compliance with WhatsApp's business policies.

  2. Depending on your contact list size, you’ll need software that can handle large bulk messaging capacity without performance bottlenecks. Some software limits the number of messages or recipients you can send per day, week, or month, so ensure it aligns with your requirements.

  3. Bulk sending pre-approved WhatsApp template messages ensures that businesses can reach their target audience, even if the 24-hour conversation window has closed. Therefore, look for a platform that offers a template manager, which allows you to view, create, and manage templates in one place.

  4. Look beyond basic bulk messaging. Key features like AI agents, segmentation, automation, analytics, and integration are essential for optimising engagement and streamlining business operations.

  5. Even the best software can encounter technical issues. Ensure the platform has reliable and dedicated customer support, as well as a strong uptime record to minimise delays that could impact campaign success.

  6. Pricing varies based on features and messaging limits. Choose software that fits your budget and can scale with your business as it grows. A flexible pricing structure ensures you only pay for what you need, while still leaving room for future expansion.

The 8 best WhatsApp broadcast software for your bulk messaging campaigns

Business Solution Provider (BSP)

Best for

Pricing model

SleekFlow

Businesses wanting an AI-powered omnichannel solution to scale marketing campaigns across WhatsApp, Facebook, SMS, and more — all with enterprise-grade security.

Flexible subscription plans with Monthly Active Contacts (MAC) pricing. A Free Forever plan is also available.

Brevo

Businesses using Brevo’s existing marketing suite who want to add WhatsApp marketing via an add-on.

Function-based platform subscriptions, with WhatsApp marketing available as a paid add-on.

WATI

SMEs needing a WhatsApp-focused solution.

Subscription-based with a 7-day free trial.

Gallabox

Companies wanting a WhatsApp-focused solution with no-code chatbot creation, CRM integrations, and a strong multi-agent shared inbox.

Subscription-based, with free trial available

AISensy

Startups looking for a budget-friendly WhatsApp marketing tool.

Subscription-based, with free plan available

Twilio

Developers and enterprises requiring API-first messaging infrastructure.

Pay-as-you-go & subscription options

Zaapi

SMEs who need to manage chat enquiries across regional marketplaces.

Subscription-based, with free trial available.

Bird

Companies needing a secure, API-based messaging solution for WhatsApp and multiple channels.

Monthly platform fee plus usage-based charges.

1. SleekFlow

SleekFlow, an AI-powered WhatsApp broadcast platform and official WhatsApp Business API provider

SleekFlow is an AI-powered WhatsApp broadcast software and is an official provider of WhatsApp Business API that empowers businesses to optimise their customer communication and enhance engagement. With robust features in automation, personalisation, and integration, SleekFlow enables effective and impactful WhatsApp broadcast campaigns. SleekFlow is also GDPR-compliant and certified by ISO-27001. A free forever plan is available, but businesses will need to subscribe to a paid plan to bulk send WhatsApp messages.

Check out the businesses who've achieved success with SleekFlow's broadcast features over at SleekFlow's Customer Success stories.

Main features:

  • Support businesses in hosting and managing multiple WhatsApp Business accounts from a single platform.

  • Automated customer segmentation and data storage to create dynamic contact lists, and implement dynamic variables in messages content based on customer behaviour and preferences to deliver hyper-personalised bulk messages.

  • Schedule WhatsApp broadcast campaigns to engage target customers at the right time.

  • Go beyond traditional bulk messaging marketing campaigns with WhatsApp drip campaigns. SleekFlow’s Flow Builder allows businesses to easily create and run post-broadcast automations, strategically engaging your audience across every stage of the buyer's journey.

  • SleekFlow isn’t limited to WhatsApp. You can connect Facebook Messenger, Instagram DMs, Tiktok, SMS, and more, bringing all your customer conversations into one platform.

  • Native integration with external platforms such as HubSpot, Salesforce, and Shopify to create a single source of truth. Use API and webhooks to connect with your other existing tech stacks.

  • Train a team of AI Agents for your WhatsApp Business accounts with your company’s knowledge base to instantly handle follow-ups with quick, accurate, and contextually relevant responses.

  • Track the success of your broadcast campaigns with comprehensive analytics, giving you insights to refine your strategies and achieve better results.

  • Dedicated onboarding support and provide help center documentation along with email and chat support.

Walk through the interactive demo below and discover how SleekFlow helps marketers create successful campaigns in action.

Ready to transform your WhatsApp strategy into a high-converting channel?

Book a free demo with SleekFlow today to see how our AI-powered omnichannel solution can be customized for your business.

2. Brevo

Highlights Brevo’s capabilities in scaling customer engagement through WhatsApp marketing.

Image source: Brevo

Brevo (formerly Sendinblue) is a comprehensive marketing platform offering solutions for email, SMS, live chat, and WhatsApp. The platform is ideal for brands that need to manage contact lists and bulk send promotional messages. Brevo emphasises creating an all-in-one marketing hub suitable for businesses of all sizes. You’d need to buy an add-on to send WhatsApp marketing messages with Brevo’s Marketing Platform.

3. WATI

WATI interface for broadcast campaigns

Image source: WATI

WATI is a dedicated WhatsApp API platform with a strong focus on customer communication. Unlike omnichannel solutions, WATI specialises in WhatsApp, making it a great choice for businesses looking for advanced WhatsApp broadcast features without the need for multiple channels. Its easy-to-use drop-down makes it accessible to non-technical users.

If you need a platform for occasional WhatsApp bulk messaging, investing in a dedicated solution like WATI may not make sense. Additionally, Wati only provides customer support via email, so you won’t receive instant solutions to your problems.

4. Gallabox

Gallabox WhatsApp Broadcast: targeted campaigns with personalized messages, product images, and carousel CTAs

Image source: Gallabox

Known for its user-friendly interface, Gallabox allows businesses to create no-code chatbots and send bulk WhatsApp messages using the official API. Similar to WATI, Gallabox also focuses on WhatsApp. It offers a range of integrations, including CRM, and excels in multi-agent shared inbox features.

Read more: How WhatsApp Business pricing works in Singapore and Malaysia

5. AISensy

AiSensy: A complete WhatsApp engagement platform powered by the Official WhatsApp Business API.

Image source: AiSensy

AiSensy offers an official Whatsapp business API-based marketing and customer support platform. You can create chatbots and use the multi-agent shared inbox to collaborate with team members. With its personalised messaging campaigns feature and advanced analytics, businesses can monitor and optimise marketing results. 

6. Twilio

Twilio-powered WhatsApp Business Platform for scalable, data-driven customer engagement, featuring secure messaging

Image source: Twilio

If you have a dedicated IT team with advanced coding & development skills, Twilio is one of the better WhatsApp broadcast software, as it’s built for developers. Their WhatsApp solution is highly customisable, making it suitable for businesses with complex communication needs.

However, this suggests you need a dedicated team of developers to fully leverage Twilio's WhatsApp Business API solution. 

Learn how to track WhatsApp marketing ROI metrics in the comprehensive blog guide.

Zaapi

zaapi chat platform

Zaapi is an AI-powered omnichannel chat platform designed primarily for small to medium-sized online sellers. It provides a unified inbox that aggregates messages from WhatsApp, Facebook, Instagram, and LINE, along with integrations for e-commerce sites like Shopee and Lazada. While Zaapi is a cost-effective choice for basic chat management and simple automation, it lacks the advanced enterprise-grade features found in more robust platforms.

8. MessageBird (Bird)

MessageBird's personalized WhatsApp marketing platform for automated, optimized customer engagement.

Image source: Bird

Bird, formerly known as MessageBird, is another omnichannel platform offering robust APIs for WhatsApp, SMS, and social media. It stands out for its focus on engagement and conversational marketing. With tools for list growth, segmentation, and chatbots, it empowers businesses to create targeted campaigns and foster meaningful customer interactions throughout their journey.

However, Bird might not offer the depth of specialisation in WhatsApp that other platforms do.

Go beyond the broadcast

Choosing a WhatsApp broadcast software is a pivotal decision for your communication strategy. While many tools can "blast" a message, only a few can turn that message into a long-term customer relationship.

In a competitive market like Singapore, the ability to deliver the right message at the perfect moment is just one step. While bulk messaging gets you noticed, it is the ability to nurture that initial spark into a continuous, meaningful dialogue that sets growing brands apart. With SleekFlow, your broadcast becomes the gateway to a personalised customer journey, powered by AI and automation that ensures every follow-up is as timely and relevant as the first interaction.

Want to outcompete your peers with SleekFlow's help?

Book your personalised demo with SleekFlow today and unlock the potential of seamless communication

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