TL;DR. Free app building splits into four categories: free AI app builders (Lovable, Bolt, Replit), bring-your-own-AI platforms (Hatchable), no-code tools (Bubble free tier, Glide, Softr), and self-hosted DIY (Next.js + free hosts). Each wins for different projects and fails for others. The "best" depends on what you're building, whether you already have an AI subscription, and how permanent the app needs to be. Side projects especially have weird requirements — they live a long time, get infrequent traffic, and you don't want a surprise bill from a platform you forgot about.
The four categories
Most "how to build apps for free" advice picks a category and pretends the others don't exist. Here's the honest landscape:
1. Free AI app builders (bundled AI + hosting)
Examples: Lovable, Replit (with AI agent), Bolt.new, v0.
You describe the app in natural language, the platform's AI writes the code, and the same platform hosts it. All-in-one experience. Free tier is a monthly credit budget — some generations, some builds, some hosted apps.
- Good for: You want one subscription, no setup, and you're not already an AI-tool user.
- Not good for: Long-lived apps (credits run out monthly), apps you want to take elsewhere (lock-in varies), or when you already pay for Claude/ChatGPT and don't want a second bundled AI bill.
2. Bring-your-own-AI platforms
Example: Hatchable.
You bring an AI tool you already use (Claude Code, Cursor, ChatGPT desktop, Codex). The platform hosts what the AI builds — database, auth, storage, a URL. No AI metering, because the platform doesn't provide the AI.
- Good for: You already have an AI tool or a paid AI subscription. Long-lived apps. Personal projects you want to keep free indefinitely.
- Not good for: You don't have an AI tool and don't want to set one up. You want a single all-in-one experience with no external dependencies.
3. No-code tools (free tiers)
Examples: Bubble (free tier), Glide, Softr, Airtable + Softr, Webflow (for CMS-like apps).
Visual builders with a logic layer. You drag components, define data, and wire up workflows with a UI (no code, and usually no AI either). Free tiers are capped on rows, seats, or "workflow runs."
- Good for: Database-driven internal tools (CRMs, inventory, simple admin panels) where you don't need custom visual design. Also good when you're comfortable with drag-and-drop but not with prompting AI.
- Not good for: Projects that need custom UI, anything unusual that doesn't fit their templates, or long-lived work (no-code free tiers get capped fast once an app gets real use).
4. Self-hosted DIY (free host + free AI)
Examples: Next.js on Vercel free + Supabase free, Astro on Cloudflare Pages, Flask on Fly.io free, any static site on GitHub Pages.
You write the code (with or without AI help), you choose a free host, you stitch it together. No single "builder" — it's a DIY stack.
- Good for: Developers who want full control, no platform lock-in, and are willing to glue services together.
- Not good for: Non-developers. The free tiers are each generous individually, but the glue work (auth, database, file storage across separate services) adds real complexity.
Choosing by project type
Concrete guide. Find your project; see the recommended category.
| Project | Best free path | Why |
|---|---|---|
| Habit tracker, personal dashboard | Bring-your-own-AI (Hatchable) | Long-lived, low traffic, no credit cliff needed |
| One-shot prototype to test an idea | Bundled AI builder (Bolt.new) | Fastest from zero; credit cap doesn't matter if you abandon it after |
| Family chore app, chore chart | Bring-your-own-AI (Hatchable) | Will be used for years by 4-10 people; credit limits would annoy |
| Internal CRM for a 3-person team | No-code (Softr, Glide) or BYO-AI | Fits no-code templates if the workflow is standard; BYO-AI if custom |
| Polished consumer app to show friends | Bundled AI (Lovable) | Best visual defaults out of the box |
| Serious side project (will it run in 2 years?) | BYO-AI or self-hosted DIY | No credit refresh, exportable; the others will pressure you to pay |
| Something that needs real-time or complex backend | Self-hosted DIY | Hosted builders don't support arbitrary backend complexity |
| Portfolio or marketing site | Free static host (GitHub Pages, Cloudflare Pages) | No database needed; static is cheapest and fastest |
The question nobody asks
"How do I build apps for free?" is usually the wrong question. The better question is:
"How do I build and keep running this specific app for free over the next year?"
Because most "free" options are free to start. The second-month and tenth-month costs diverge a lot:
- A bundled AI builder: free for the first 3-5 builds, then credits run out → $20/month if you want to keep iterating.
- BYO-AI hosting: free indefinitely (including for commercial use on the free plan); $0/month at steady state if you don't need a custom domain or heavier resource limits.
- No-code: free for small data; paid the moment the row count or active users exceed the tier cap.
- Self-hosted DIY: free as long as traffic is low, paid when bandwidth or database usage exceeds the free-tier fine print.
If your project is truly ephemeral — a prototype, a demo, a test — "free for the first month" is enough. If it's a thing you want to keep using, the 12-month cost projection matters more than the day-one price.
The BYO-AI path, specifically
This is the path Hatchable represents and most new-to-the-space readers overlook. The pitch:
- You (or your team) already have a Claude, ChatGPT, or Cursor subscription, or you're willing to use one of their free tiers.
- You add a hosting platform (Hatchable) that speaks MCP to that AI tool.
- The AI builds apps on demand; the hosting platform stores and serves them.
- The AI piece has its own cost (often $0 for light use). The hosting piece is free, including for commercial use.
The big deal: neither piece meters "builds" or "deploys" or "AI credits" in the way bundled platforms do. You can iterate as much as you want, as often as you want, for as long as you want. This model didn't exist two years ago — MCP only matured in 2024-2025. It's the quietly-biggest shift in free app building since GitHub Pages launched.
Side projects: the specific case
Side projects have a weird shape that most "free hosting" advice misses. They tend to be:
- Used by you, a few friends, or a small team. Possibly nobody after month three.
- Run for months or years without meaningful changes.
- Revisited irregularly — three visits one week, nothing for four months.
- Unlikely to ever make money, or at least not soon.
- Personal enough that paying $20/month for them feels wrong.
Three things to specifically watch for when picking a free host for a side project:
Cold starts. Some free app tiers spin apps down after inactivity. Every subsequent visit waits 5-10 seconds for the app to wake up. For a side project that gets visited once a week, every real visit eats a cold start. Feels broken to anyone you shared the URL with.
Monthly credit resets. Free tiers that cap AI usage monthly feel fine when you're actively building. Two months in, you might not touch the project. Six months in, you want to add a feature and discover you've been logged out, tokens expired, and the platform's UI changed.
12-month expiration. AWS, Azure, Oracle's non-always-free tier give you a year, then charge. Easy to forget. Your side project survives month 13; the free tier doesn't.
Static hosts (Cloudflare Pages, Netlify, GitHub Pages) avoid all three. BYO-AI hosting (Hatchable) avoids all three. Bundled AI builders have the credit-reset problem; big-cloud free tiers have the 12-month problem; some app-hosting free tiers have the cold-start problem.
A note on quality
"Free" doesn't mean "bad" anymore. The free tier of a good AI app builder writes code that would have cost $5K of contractor work a few years ago. The floor is higher than most people expect.
What "free" still means: less support, no SLAs, more responsibility on you to understand what you're getting. If you're building something serious, budget for eventually paying some platform — either upgrading the one you start on, or moving to a more robust alternative. The first year being free is a reasonable expectation; the tenth year is aspirational.
Free app hosting, no credit cliffs.
Bring the AI you already use. Hatchable hosts what it builds, free forever.
Get started free →Frequently asked questions
What's the actual cheapest way to build an app in 2026?
If you already have any AI subscription or are willing to use a free-tier AI: use a BYO-AI hosting platform (Hatchable) with your existing AI. Zero dollars incremental. If you have nothing set up and want the fastest start: Bolt.new or Lovable's free credits give you a working app in minutes; you just can't iterate forever without paying.
Do I need to learn how to code?
Not for the AI-builder and BYO-AI paths. You describe the app in English and the AI writes the code. You only need to code if you go the self-hosted DIY path. No-code tools also skip code but replace it with visual workflow-building which has its own learning curve.
What are the limits on free app building?
Bundled AI builders cap iteration (credits). BYO-AI platforms cap storage and bandwidth (but you rarely hit these as a personal user). No-code tools cap rows/seats/workflow runs. Self-hosted DIY caps at the free tiers of whatever individual services you stitch together. No category is truly "unlimited" — the question is which cap is friendly to your usage shape.
Can I mix approaches?
Yes, often. Build on a bundled builder to prototype quickly, then export to a BYO-AI host for long-term operation. Or use a no-code tool for internal workflows and a BYO-AI host for customer-facing apps. The "one platform does everything" assumption is marketing; many real users run across 2-3 tools.
What about free AI — is that enough?
Claude's free tier, ChatGPT's free tier, and Cursor's free tier are all capable enough to build Hatchable-hostable apps. You hit rate limits if you iterate heavily in one session, but for occasional building it's plenty. For very heavy iteration, a $20/mo AI subscription is the cost floor — but that covers both app-building and general-purpose AI use, not just apps.
Is "free" going to last?
For specific capabilities, yes. Static hosting has been free for 15+ years (GitHub Pages, Netlify). Small Postgres databases stay free on multiple platforms. What changes is which specific platform offers what. The "always free" category exists; the specific provider may shift. Pick platforms that let you export your code and data so you can move if needed.