Sendgrid

Novu

Customer Communication Platforms

Add email, push, and in-app notifications to your app.

A limited free cloud plan is available. More workflow runs and features require payment.

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Customer.ioNotificationAPI

Cal.com

Appointment Scheduling Tools

Manage availability and booking links with a scheduling platform that supports self-hosting.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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CalendlyDoodle

Strapi

Headless CMS Tools

Headless CMS with REST and GraphQL APIs out of the box.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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ContentfulSanity

ToolJetProduct logo · See the interface on the official website

ToolJet

Low-Code/No-Code Platforms

Build internal tools rapidly without coding.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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RetoolSoftr

Medusa

Headless Commerce Tools

Open-source e-commerce for modern developers.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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ShopifyBigCommerce

ActivePieces

Low-Code/No-Code Platforms

Automate workflows with no-code integration platform.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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n8nMake

BotpressAI

AI Agent Platforms

Build powerful AI agents with cutting-edge LLM technology.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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ManychatVoiceflow

Convex

Backend-as-a-Service (BaaS) Tools

Build full-stack apps with TypeScript and real-time sync.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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SupabaseMongoDB

GumroadProduct logo · See the interface on the official website

Gumroad

Invoicing & Payment Tools

Your all-in-one marketplace for digital creators and products.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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StripeKajabi

Highlight

Performance Monitoring (APM) Tools

Real-time observability for modern web applications.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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DataDogBetterStack

OneUptime

Performance Monitoring (APM) Tools

Comprehensive monitoring and incident management platform.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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DataDogOpsgenie

LangWatchAI

LLM Observability & Evaluation

Simulation-based testing and evaluation for AI agents.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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LangSmithHumanloop

Erxes

Customer Communication Platforms

Open-source growth platform for customer-centric teams.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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SalesforceHubSpot

Dittofeed

Customer Communication Platforms

Open-source customer engagement platform for automation.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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MailchimpBrevo

PeekapingProduct logo · See the interface on the official website

Peekaping

Infrastructure Monitoring Tools

Self-hosted uptime monitoring you own and control.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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BetterStackUptimeRobot

Storyden

Wiki Software

Build lasting communities with modern forum technology.

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

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SkoolCircle