The cheapest AI tool stack for a indie app / solo dev
Running a indie app / solo dev takes 3 AI jobs. Pick the cheapest solid tool for each and the whole stack costs about $14/mo — or as little as $0 using the 3 free options. Here's the build, with each tool's honest catch.
Shipping solo means wearing every hat, so the stack covers the three that slow you most: writing and reviewing code, a general assistant for planning and debugging, and quick UI/brand visuals so the product does not look unfinished. Here is the lowest-cost set, plus the strong free options developers actually use.
| Job | Cheapest pick | From | Free option |
|---|---|---|---|
| Write & review code | Aider AI Coding | $5/mo | Cursor |
| Plan & debug (assistant) | Khanmigo AI Assistants & Chatbots | $4/mo | ChatGPT |
| Design UI & brand assets | Framer AI Design & Branding | $5/mo | Canva Magic Studio |
| Total to run this stack | ~$14/mo (3/3 jobs free-capable) | ||
The honest catch on each pick
Best for: Terminal-native developers who want maximum model flexibility and full open-source transparency.
Watch out: Developers who prefer a GUI or managed IDE experience over a CLI workflow.
Has a free tier
Best for: K-12 and college students who learn best through guided questioning rather than direct answers.
Watch out: Adults seeking a general-purpose productivity assistant or open-ended creative writing help.
No free tier — from $4/mo
Frequently asked questions
- What AI tools do I need for a indie app / solo dev?
- write & review code (Aider), plan & debug (assistant) (Khanmigo), design ui & brand assets (Framer). That's 3 jobs; you don't need one expensive all-in-one.
- How much does an AI indie app / solo dev stack cost per month?
- Picking the cheapest paid tool for each job, about $14/mo total. 3 of 3 jobs also have a genuinely free option, so you can start at or near $0.
- Can I build a indie app / solo dev stack for free?
- Yes — every job here has a free tier, so a fully-free stack is possible (with the usual free-tier limits).