Overview

Founded in 2011, EngageLab serves businesses in fields including financial services, e-commerce, news and media, travel, and gaming. Its catalog ranges from Marketing Automation and push messaging to email, SMS, WhatsApp Business API, OTP, Silent Auth, CAPTCHA, and LiveDesk. That range gives organizations options to source multiple engagement tools from one provider, though each product has its own billing basis rather than one shared suite price.

Marketing Automation is the most integrated offering: it combines visual journey design, templates, AI content generation, customer profiles, and revenue attribution, with AppPush, WebPush, Email, SMS, and WhatsApp as channels. Teams running coordinated campaigns across those channels have the clearest reason to choose it; a business needing only one narrow function may not benefit from the larger catalog.

Key features

The visual campaign builder, behavioral triggers, and A/B testing support teams in designing and refining customer journeys. Customer profiles provide a 360-degree view, while revenue attribution analytics connect campaigns to outcomes. AI content generation adds assistance for campaign creation. Together these features make Marketing Automation more compelling for teams managing ongoing, multi-channel programs than for occasional, single-channel senders.

Developer support is broad: native Android, iOS, Java, and Web SDKs sit alongside REST APIs and plugins for Cordova, React Native, Flutter, Unity3D, and Cocos2d-x. This range should help teams fit EngageLab into varied application stacks. WebPush covers Windows, macOS, and Android browsers, plus Safari on iOS, and its Shopify plugin is a practical integration for merchants using that platform.

The product range also reaches beyond marketing. OTP and Silent Auth address authentication, CAPTCHA handles verification, and LiveDesk provides cross-channel support with ticket management and AI-human collaboration. Two-factor authentication uses Google Authenticator; SSO activation requires contacting sales, which adds a step for organizations that require centralized sign-in.

EngageLab stores data in Singapore by default, with options including the United States, Germany, and Hong Kong. The site displays DNV and SOC2 certificates and describes compliance with GDPR and PDPA. Technical experts help with setup, and product-usage questions receive 24/7 answers.

Pricing

EngageLab is paid, with custom pricing and a free trial. The products use different billing models, so buyers should confirm the cost of their intended combination rather than assume a single subscription covers the suite.

Marketing Automation: Custom pricing, billed by MEP scale. It includes omnichannel coverage, customer views, a visual campaign builder, templates, and AI-optimized strategies. It is the relevant option for teams coordinating multi-channel journeys, but the MEP-based monthly calculation makes volume an important cost driver.
Email: Custom pricing on usage consumption, with sending capped at 50 emails per day. That cap makes the offer suitable only for very low-volume needs, not routine campaigns to larger audiences.
WhatsApp: Custom pricing on usage consumption, with multiple message types, enterprise official-account authentication, and end-to-end encryption protection.
CAPTCHA: Custom pricing based on peak request volume. The Basic plan provides zero hourly verification requests and zero scenario IDs, so it has no usable allowance; Enterprise Custom is customizable.
WebPush: Custom pricing by DAU scale. It includes a 15-day free trial, unlimited push notifications and registered users, multiple domains, and Shopify support. The trial gives teams a time-limited way to evaluate it; DAU scale remains the billing measure.
SMS: Custom pricing on usage consumption, covering more than 200 countries and regions with 99.97% annual service availability.
OTP: Custom pricing on usage consumption, with a self-built number pool, intelligent multi-channel supplementary sending, and automatic anti-fraud.
LiveDesk: Custom subscription pricing, with unlimited support agents, cross-channel support, AI-human collaboration, and intelligent ticket management. The unlimited-agent allowance may suit larger support teams, though subscription pricing still needs to be assessed against their requirements.
Silent Auth: Custom pricing, charging only for successful authentication. It offers 3–5-second verification, background verification, and fallback protection; the success-based model ties charges to completed verifications.
AppPush: Custom pricing by DAU scale, with a 30-day free trial, unlimited push notifications and registered users, and multiple data nodes. Its longer trial than WebPush gives teams more evaluation time, while DAU scale still determines billing.

AppPush and WebPush calculate billing monthly by DAU scale, while Marketing Automation uses MEP scale. The remaining products charge by consumption, peak request volume, successful authentication, or subscription. Confirm the relevant product’s trial terms and expected volume before committing.

Platforms

EngageLab supports Android, iOS, macOS, web, and Windows, as well as API access. Its SDKs and cross-platform plugins provide routes for mobile, web, and game development. For WebPush specifically, iOS support is through Safari.

Who it's for

EngageLab is best suited to businesses that need several customer engagement capabilities, especially teams coordinating marketing across push, email, SMS, and WhatsApp or developers integrating messaging into multiple application types. Its authentication and support products may also appeal to organizations seeking those alongside campaign tools. It is less compelling for buyers wanting a single-function product with a straightforward public price or a meaningful free allowance: Email is limited to 50 sends per day, and CAPTCHA Basic has no verification requests or scenario IDs.

Pros and cons

Pro: Marketing Automation brings journey design, audience profiles, AI content generation, and attribution together across five messaging channels, giving cross-channel teams a broad campaign toolkit.
Pro: Native SDKs, REST APIs, and multiple cross-platform plugins provide integration options across common mobile, web, and game-development stacks.
Pro: Multiple data-node choices, two-factor authentication, and 24/7 answers to usage questions address practical deployment, account-security, and support needs.
Con: Custom pricing and several different billing measures make it harder to estimate total cost across a product combination.
Con: The 50-email-per-day allowance and zero-allowance CAPTCHA Basic plan are restrictive for customers expecting a useful low-cost starting tier.
Con: Buyers needing SSO must contact sales to activate it, adding coordination for organizations that depend on centralized identity management.

Alternatives

For push-focused buyers comparing free entry points, OneSignal has a free plan at 0.00 USD per free, billed monthly, with 10,000 email sends per month and 1,000 monthly active users; its listed platforms include web, desktop, and mobile. Pushwoosh is another freemium option, with a 0.00 USD per free monthly Pay-as-you-go plan that includes 1,000 MAU, five AI requests per day, 20,000 email sends per month, and unlimited push notifications.

Reteno may suit teams seeking a free-start option with defined workflow and channel allowances: its Startup plan is 0.00 USD per free and includes unlimited mobile pushes, 1,000 sends in each channel per month, 20,000 workflow launches per month, unlimited segments, and email and chat support. CleverTap is a paid alternative with a free trial and a Core plan at 85.00 USD per month; billing starts after its 30-day trial, taxes apply, and add-ons are excluded.

Notifly is a paid, trial-available option whose Standard plan is 150000.00 KRW per month and includes mobile and web push, in-app and web popups, email, SMS, and real-time sending based on user attributes. Journiq offers a Starter plan at 49.00 USD per month, or $470/yr with 20% savings, with stated monthly allowances for API calls, email, SMS, push, customer profiles, campaigns, and team seats.

Plumb5 Mobile Marketing is another paid, trial-available alternative. Userpilot may fit buyers who prefer seat- and audience-defined paid plans: its Starter plan is 299.00 USD per month for up to 2,000 MAU, 10 segments, three seats, and one-year data retention.

Readers comparing category options can also browse Mobile Marketing Automation Software, Push Notification Software, and WhatsApp Marketing Software.

Verdict

Choose EngageLab if your business needs a broad set of messaging, automation, authentication, and support products, and its channel coverage and developer tools match your stack. The main reason to look elsewhere is commercial clarity: custom pricing across distinct billing models, plus narrow or nonexistent basic allowances in some products, makes it a weaker fit for buyers who need predictable costs or a useful free tier.

	EngageLab	SleekFlow
Free plan	No	No
Free trial	Yes	Yes
Paid from	—	$49/mo
Open source	No	No
Platforms	Android, api, iOS, macOS, Web, Windows	Android, api, iOS, Web
Free plan	—	No
Paid from	—	109 /mo

EngageLab vs SleekFlow

EngageLab

SleekFlow