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.

Database

The 8 Best Convex Alternatives in 2026

Looking for an alternative to Convex? Below we compare the best database alternatives by pricing, free tiers, and what each is best for — so you can pick the right fit for your budget and stack.

Convex vs Alternatives — Quick Comparison

Tool	Pricing	Free tier	Best for
ConvexYou searched	Free · paid from $25/mo		Database — backend, baas
Redis	Free		Database — cache, in-memory
Supabase	Free · paid from $25/mo		Database — postgresql, supabase
MongoDB Atlas	Free · paid from $30/mo		Database — nosql, mongodb
Neon	Free		Database — postgresql, serverless
Appwrite	Free · paid from $25/mo		Database — backend, baas
AWS RDS (PostgreSQL)	Usage-based	—	Database — postgresql, relational
GCP Cloud SQL (PostgreSQL)	Usage-based	—	Database — postgresql, relational
Azure Database for PostgreSQL	Usage-based	—	Database — postgresql, relational

Top Convex Alternatives, Explained

1. Redis

Free tier· Free

In-memory data structure store used as a cache, session store, real-time queue, and message broker.

Redis pricing & review

2. Supabase

Free tier· Free · paid from $25/mo

Open-source Firebase alternative built on PostgreSQL with auth, storage, and real-time features.

Supabase pricing & review

3. MongoDB Atlas

Free tier· Free · paid from $30/mo

Fully managed cloud NoSQL database with flexible scaling, global distribution, and strong developer tooling.

MongoDB Atlas pricing & review

4. Neon

Free tier· Free

Serverless PostgreSQL with autoscaling, branching, and usage-based pricing.

Neon pricing & review

5. Appwrite

Free tier· Free · paid from $25/mo

Open-source backend-as-a-service providing databases, authentication, storage, serverless functions, and real-time APIs.

Appwrite pricing & review

6. AWS RDS (PostgreSQL)

· Usage-based

Amazon's fully managed PostgreSQL with automatic backups, multi-AZ failover, and enterprise-grade reliability.

AWS RDS (PostgreSQL) pricing & review

7. GCP Cloud SQL (PostgreSQL)

· Usage-based

Google's fully managed PostgreSQL with high availability, automatic failover, and seamless GKE integration.

GCP Cloud SQL (PostgreSQL) pricing & review

8. Azure Database for PostgreSQL

· Usage-based

Microsoft's fully managed PostgreSQL with zone-redundant HA, seamless Azure ecosystem integration, and enterprise compliance.

Azure Database for PostgreSQL pricing & review

Frequently Asked Questions

What are the best alternatives to Convex in 2026?⌄

The best Convex alternatives in 2026 are Redis, Supabase, MongoDB Atlas, Neon, Appwrite. Each is a database option you can compare on pricing, free tiers, and features in the table above.

Is there a free alternative to Convex?⌄

Yes — Redis, Supabase, MongoDB Atlas offer free tiers, making them strong free Convex alternatives for bootstrapped startups.

Why look for a Convex alternative?⌄

Common reasons include pricing, a specific feature gap, ease of use, or wanting an open-source or free-tier option. Comparing database tools side by side helps you pick the best fit for your stack and budget.

Find your perfect database tool

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