Optimal Stack Blueprint

Best Tech Stack for Mobile App Backend

Q: What is the best tech stack for mobile app backend in 2025?

Based on our deterministic scoring, the recommended stack for mobile app backend is: Bun, SQLite, Better Auth, Cloudflare Pages. This combination scores 88/100 for mobile app backend use cases.

Q: How much does it cost to build a mobile app backend application?

With the recommended stack, you can start for $0 using free tiers. As you scale, expect costs around $25-50/month for a small app, and $100-200/month for production workloads with significant traffic.

Q: Why is Bun recommended for mobile app backend?

Bun scores 86/100 for mobile app backend because it excels in the key priorities: performance and scalability. It offers the best balance of development speed, maintainability, and cost efficiency.

Q: Can I use a different framework for mobile app backend?

Yes, we provide alternative stacks for different priorities. Check the alternatives section for options optimized for enterprise scale, budget constraints, or maximum performance.

Q: How long does it take to build a mobile app backend with this stack?

With the recommended stack and its excellent developer experience, you can expect to ship an MVP in 1-2 weeks for experienced developers, or 4-6 weeks for those learning the technologies.

Backend services for mobile applications with APIs, push notifications, and offline sync.

Recommended Stack

88 /100

Optimized for Mobile App Backend

Your Optimal Stack

Best-in-class picks for each layer

Top Pick

Backend

Bun

Database

SQLite

Authentication

Better Auth

Hosting

Cloudflare Pages

Alternative Approaches

Different stacks for different priorities

Budget-Friendly

88 /100

Minimize costs while maintaining quality

Node.jsSQLiteBetter AuthCloudflare Pages

Maximum Speed

87 /100

Ship fast with best developer experience

Node.jsPostgreSQLClerkVercel

Cost Breakdown

Monthly estimates by scale

Tier	Monthly Cost
Free	Free
Growth	$40 /mo
Scale	$120 /mo

Frequently Asked Questions

What is the best tech stack for mobile app backend in 2025?

How much does it cost to build a mobile app backend application?

Why is Bun recommended for mobile app backend?

Can I use a different framework for mobile app backend?

How long does it take to build a mobile app backend with this stack?

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