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.

PDF & Documents

The 5 Best iLovePDFs Alternatives in 2026

Name: App Stack Builder
Availability: InStock

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

Why look for a iLovePDFs alternative?

iLovePDFs is a solid pdf & documents choice, but it isn't the right fit for everyone. The most common reasons teams evaluate alternatives:

−File size limits on free usage
−No offline mode
−Advanced features may require account

iLovePDFs vs Alternatives — Quick Comparison

Tool	Pricing	Free tier	Rating	Best for
iLovePDFsYou searched	Free		4.1	PDF & Documents — pdf, free
1.Stirling PDF	Free		4.6	PDF & Documents — pdf, open-source
2.PDF24 Tools	Free		4.5	PDF & Documents — pdf, free
3.Smallpdf	Free · paid from $9/mo		4.4	PDF & Documents — pdf, editor
4.Adobe Acrobat Pro	From $14.99/mo	—	4.6	PDF & Documents — pdf, editor
5.Foxit PDF Editor	From $10.99/mo	—	4.5	PDF & Documents — pdf, editor

Top iLovePDFs Alternatives, Explained

1. Stirling PDF

Free tier4.6· Free

Stirling PDF is a self-hosted, open-source web app offering 50+ PDF operations (merge, split, convert, OCR, sign, redact). Because you host it yourself, documents stay on your own infrastructure — ideal for privacy-sensitive teams.

Open-source & self-hosted
Total data privacy
Huge feature set

Stirling PDF pricing & review iLovePDFs vs Stirling PDF

2. PDF24 Tools

Free tier4.5· Free

PDF24 offers a comprehensive set of free PDF tools online and as a privacy-friendly offline desktop app for Windows. It covers conversion, merging, splitting, compression, and OCR with no account required, funded by ads rather than subscriptions.

Genuinely free, no limits
Offline desktop app for privacy
Huge range of tools

PDF24 Tools pricing & review iLovePDFs vs PDF24 Tools

3. Smallpdf

Free tier4.4· Free · paid from $9/mo

Smallpdf is a widely used web PDF toolkit covering conversion, compression, merging, editing, and e-signatures. A free tier handles occasional tasks; Pro removes limits and adds unlimited processing and signing.

Clean, easy-to-use interface
Wide range of PDF tools
E-signature support

Smallpdf pricing & review iLovePDFs vs Smallpdf

4. Adobe Acrobat Pro

4.6· From $14.99/mo

Adobe Acrobat is the most widely used professional PDF platform. Pro adds full editing, OCR, redaction, document comparison, and legally binding e-signatures via Acrobat Sign. The 2025 Acrobat Studio tier layers on an AI Assistant, PDF Spaces, and Adobe Express, turning Acrobat from a pure editor into a document productivity hub. Best for teams that need a definitive, compliance-grade tool for contracts, reports, and forms.

Industry-standard, universally compatible
Most complete PDF feature set
Strong redaction and compliance tools

Adobe Acrobat Pro pricing & review iLovePDFs vs Adobe Acrobat Pro

5. Foxit PDF Editor

4.5· From $10.99/mo

Foxit PDF Editor is the leading Adobe Acrobat alternative, offering create, edit, convert, form-filling, and e-signature features across desktop, mobile, and cloud. The Editor+ tier adds AI Smart Redact, 150GB storage, and bundled eSign envelopes, plus an AI Assistant with free monthly credits. Popular with cost-conscious teams and businesses that want professional PDF capability without Adobe's pricing.

About half the cost of Adobe Acrobat
Full professional PDF feature set
Cross-platform with mobile access

Foxit PDF Editor pricing & review iLovePDFs vs Foxit PDF Editor

Frequently Asked Questions

What are the best alternatives to iLovePDFs in 2026?⌄

The best iLovePDFs alternatives in 2026 are Stirling PDF, PDF24 Tools, Smallpdf, Adobe Acrobat Pro, Foxit PDF Editor. Each is a pdf & documents option you can compare on pricing, free tiers, and features in the table above.

Is there a free alternative to iLovePDFs?⌄

Yes — Stirling PDF, PDF24 Tools, Smallpdf offer free tiers, making them strong free iLovePDFs alternatives for bootstrapped startups.

Why look for a iLovePDFs alternative?⌄

A common reason teams switch is file size limits on free usage. Beyond that, people compare pdf & documents tools on pricing, specific feature gaps, ease of use, and whether an open-source or free-tier option exists — so they can pick the best fit for their stack and budget.

What is the cheapest iLovePDFs alternative?⌄

Stirling PDF is among the most affordable iLovePDFs alternatives — free. Check the comparison table above for the full pricing breakdown.

Which iLovePDFs alternative is rated highest?⌄

Stirling PDF is the highest-rated iLovePDFs alternative in our catalog at 4.6 out of 5, making it a strong pick if you want a well-reviewed option.