Managed databases, search services, vector stores and monitoring for production systems. These products are often usage-based, so listings record the unit (per host, per GB, per million events or requests) alongside each rate.
6 tools
Algolia is a hosted search and discovery API. Developers push records to indices and query them through official API clients, InstantSearch UI libraries and an Autocomplete library, with features for ranking, synonyms, rules, personalization, recommendations, analytics and A/B testing. Higher tiers add AI ranking, query categorization and NeuralSearch. Pricing is usage-based on search requests and records.
Free plan available; usage-based pricing
Datadog is a cloud monitoring and security platform that brings infrastructure metrics, application traces, logs, real user and synthetic monitoring, database monitoring, CI visibility and security products (code, cloud and SIEM) into one service with shared dashboards, alerting and more than 1,000 built-in integrations. Each product is billed separately, mostly per host, per GB or per million events.
Free plan available; usage-based pricing
Pinecone is a managed vector database for AI applications. Serverless indexes support dense, sparse, full-text and hybrid search with metadata filtering, namespaces for multi-tenancy, integrated embedding and reranking models, backups and dedicated read nodes. Pinecone Assistant adds a managed RAG service. A free Starter plan is available; paid plans bill on storage, read and write units.
Free plan available; paid plans from USD 20 per month
Open-source product platform combining product analytics, session replay, feature flags and experiments, surveys, error tracking, logs and data sources, priced per product on usage above a monthly free allowance.
Free plan available; usage-based pricing
Application monitoring platform for developers covering error monitoring, tracing, session replay, profiling, logs, cron monitoring and application metrics across many languages and frameworks.
Free plan available; paid plans from USD 26 per month, billed annually
Backend platform built around a dedicated Postgres database per project, with authentication, file storage, realtime, edge functions and vector/AI extensions available through APIs and client libraries.
Free plan available; paid plans from USD 25 per organization per month
To evaluate a software free plan, first decide whether it is a permanent plan, a time-limited trial or a credit grant; then convert its caps into your expected usage, check seat limits, find out what happens when you exceed a limit, review history retention and export, read the terms of use, map security features to tiers and price the first paid tier. This guide applies those steps to free plans recorded from official pages on 24 October 2026, including Firecrawl, Apify, Zapier, Supabase, Vercel, Notion, GitHub Copilot and Cursor.