Alternatives
10 best Google Cloud Pub/Sub alternatives
Tools that cover the same task as Google Cloud Pub/Sub (cloud messaging), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- Google Cloud Pub/Sub starts at
- Not listed
- Free plan
- Free plan
- API
- API available
- 01
AdNabu
AdNabu is a Shopify app for product feed management that syncs catalogs to Google Shopping, Meta, Microsoft Bing, TikTok, Pinterest, and other channels. It adds AI feed optimization, bulk edits, marketplace rules, and multichannel analytics for merchants scaling listings.
Best for: Shopify merchants who need multichannel feed hygiene, AI title optimization, and sync at scale without building custom feed pipelines.
- 02
Salesforce Service Cloud
Salesforce Service Cloud is customer service software that combines case management, self-service, analytics, and Agentforce AI agents on one CRM platform. It supports contact centers, field service, IT service, and AI-assisted support workflows for large organizations.
Best for: Customer support, IT, and operations teams that need CRM-backed service workflows with optional AI agents across channels
- 03
Cube
Cube is an agentic analytics platform built on a universal semantic layer for BI and embedded analytics. It models metrics once, serves governed answers to humans and AI agents, and offers Cube Cloud plans for semantic modeling, workbooks, dashboards, and production deployments.
Best for: Data teams and product companies that need governed metrics for internal BI, embedded analytics, and AI agent workflows.
- 04
AI Puffer
AI Puffer is a WordPress plugin that adds AI chatbots, content writing, image generation, forms, and automations to WordPress sites. It supports AI Puffer Cloud with monthly free credits or your own API keys from OpenAI, Google, Anthropic, and other providers, with usage tracking and WooCommerce integrations.
Best for: WordPress site owners who want embedded chatbots, AI content workflows, and image tools without building custom integrations.
- 05
Athena Global
Athena Global (Athena®) is an AI-powered analytics and business intelligence platform for building dashboards, syncing data connectors, and collaborating on charts. Plans range from a free tier with limited charts to Team and Business subscriptions priced per creator or viewer seat.
Best for: Teams moving from spreadsheets to collaborative BI dashboards with optional enterprise controls.
- 06
UBIAI
UBIAI is an NLP platform for data labeling, LLM fine-tuning, intelligent document processing, and agent workflows. Teams annotate documents, train and evaluate models, run API inference, and collaborate on datasets with tiered plans based on users, models, and monthly document limits.
Best for: ML engineers, annotators, and product teams building NLP or document AI with managed labeling and fine-tuning tooling.
- 07
Front
Front is a customer service platform combining shared inboxes, omnichannel messaging, ticketing, and AI copilots for support teams. It integrates email, chat, SMS, and APIs with workflow automation, knowledge base, and analytics for collaborative client communication.
Best for: Support, operations, and client-facing teams that need shared inbox collaboration with AI assistance.
- 08
Raw Query
Raw Query lets teams chat with Postgres, MySQL, and MariaDB databases in plain English to query, export, insert, and update records with confirmations. It targets developers and business users who need ad hoc data access without building internal tools.
Best for: Founders, analysts, and engineers who want conversational SQL access without maintaining one-off internal apps.
- 09
Formcarry.com
Formcarry is a form backend that ingests HTML form POSTs, applies spam filtering, and routes data to email, webhooks, and integrations. It adds submission logs, file uploads, managed email delivery, and an MCP server for AI-assisted form management.
Best for: Product teams that need dependable form ingestion with integrations and optional AI tooling via MCP.
- 10
LotusEye
LotusEye is a cloud AI anomaly detection service for sensor and numeric CSV data. Operators upload normal training data, score live readings hourly, and receive alerts when behavior deviates, with optional API uploads on paid tiers.
Best for: Engineers and operators monitoring equipment, servers, or IoT sensors who need no-code anomaly models.
Google Cloud Pub/Sub alternatives: common questions
What is the best free alternative to Google Cloud Pub/Sub?
AdNabu has an ongoing free plan. Starter plan is $0 with a free tier for smaller catalogs; paid tiers include a 14-day trial on the pricing page Free plans change, so check the vendor before relying on one.
What is the cheapest Google Cloud Pub/Sub alternative?
Athena Global has the lowest listed starting price at $3/mo.
Which Google Cloud Pub/Sub alternatives have an API?
Salesforce Service Cloud, Cube, AI Puffer, Athena Global, UBIAI mention API or developer access.