What is App Stack Builder?

App Stack Builder is a free AI-powered tool that helps founders and developers choose the right tech stack for their projects based on budget, app type, team size, and skill level.

What is the best tech stack for SaaS in 2026?

The best tech stack for SaaS in 2026 typically includes Next.js 16 for frontend, Supabase for database and auth, Vercel for hosting, Stripe for payments, and PostHog for analytics. App Stack Builder can generate a personalized recommendation based on your specific budget and requirements.

Is App Stack Builder free to use?

Yes, App Stack Builder is completely free to use. You can generate unlimited tech stack recommendations without any cost.

What types of apps can I build with the recommended stacks?

App Stack Builder supports various app types including SaaS applications, web apps, mobile apps, e-commerce stores, internal tools, and AI/ML products.

How much does a SaaS tech stack cost per month?

A modern SaaS tech stack can cost anywhere from $0-50/month for bootstrapped startups using free tiers, $100-300/month for growth-stage startups, to $500+/month for enterprise-ready infrastructure. App Stack Builder helps you find the best tools within your specific budget.

What is the best tech stack for solo founders?

For solo founders, we recommend Next.js + Vercel (free), Supabase (free tier), Supabase Auth (free), Stripe (pay as you go), and Plausible or PostHog for analytics. This stack can run your entire SaaS for under $50/month.

Can I export my tech stack recommendations?

Yes, you can export your tech stack recommendations as a PDF document or copy them to your clipboard. You can also share a link to your stack with others.

Event Streaming & Message QueuesFree tier

Confluent Cloud: Pricing, Features & Alternatives

Confluent was founded by Kafka's original authors, and Confluent Cloud is the most complete managed Kafka: serverless clusters, managed connectors, Schema Registry and Flink for stream processing. Basic clusters start free (the first eCKU, then $0.14 per eCKU-hour) with $0.05/GB in or out and $0.08/GB-month stored. Standard starts around $385/month, Enterprise around $895 and Freight, which writes straight to object storage for high-volume logs, around $2,300.

Confluent Cloud Pricing Plans (2026)

Plan	Price	Highlights
Basic	$0 to start, then $0.14 / eCKU-hour	$0.05 / GB in or out · $0.08 / GB-month stored · Single zone
StandardPopular	From ~$385 / month	Multi-zone · 99.99% SLA · Private networking options
Enterprise	From ~$895 / month	Private networking · Elastic scaling
Freight	From ~$2,300 / month	Direct-to-object-storage · High-volume logging

Pricing summary: Free · paid from $385/mo. Always confirm current pricing on the official site.

Key Confluent Cloud Features

Multi-zone
99.99% SLA
Private networking options

Pros

+Run by Kafka's creators, with the deepest feature set
+120+ managed connectors and Schema Registry
+Managed Flink for stream processing

Cons

−Costs climb fast once you leave Basic
−Networking and connector fees are easy to underestimate
−Kafka is more machinery than most apps need

Best Confluent Cloud Alternatives

Compare all

Redpanda

Free · then usage-based

CloudAMQP

Free · paid from $19/mo

Synadia Cloud

Free · paid from $49/mo

Confluent Cloud Compared

Confluent Cloud vs Redpanda Confluent Cloud vs CloudAMQP Confluent Cloud vs Synadia Cloud

Confluent Cloud FAQ

What is Confluent Cloud used for?⌄

Confluent Cloud is a event streaming & message queues tool. Managed Apache Kafka from the team that created it, with Flink stream processing and 120+ managed connectors.

Is Confluent Cloud free?⌄

Yes — Confluent Cloud has a free tier you can start with, and paid plans for more usage and features.

How much does Confluent Cloud cost?⌄

Confluent Cloud offers a free tier, with paid plans starting at $385/month.

What are the best Confluent Cloud alternatives?⌄

Popular Confluent Cloud alternatives include Redpanda, CloudAMQP, Synadia Cloud. Compare pricing and features on our Confluent Cloud alternatives page.

Not sure if Confluent Cloud fits your stack?

Get a free, AI-powered tech stack tailored to your budget, app type, and team size — including the best event streaming & message queues pick for you.

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