What he writes about
Nathaniel writes for founders who built a product with Lovable, Bolt, Replit, v0, Base44, Cursor or Claude Code and are not developers. Most of the questions he answers start the same way: the app works in the preview, and something breaks once real users arrive. Sign-in fails, payments do not unlock the account, the database is open to anyone, or the AI agent fixes one thing and breaks another.
His rule for every page: answer the question in the first paragraph, in plain words, say whether you can fix it yourself, and show where each fact comes from.
Background
Nathaniel is a copywriter who writes about web and mobile products for software teams: product pages, help content and technical explainers. On this site he does the same job for the other side of the table: founders who need to know what is broken, what a fix costs and who can do it.
How he checks the facts
- Company facts come from each company's own website: the service, location, platforms, prices and timing, with the date he checked them. Every entry is rechecked each quarter.
- Platform behaviour on the problem pages and in the guides is checked against the platforms' own documentation, and every statistic links to its source.
- Every company is scored with the same formula, described on the methodology page. No company pays to be listed, to change its entry or to move up.
- He does not test companies' code or scan anyone's app. The site describes what companies publish and what platforms document.
Start here
- Production checklist: 24 checks with a verdict on whether the app is ready for real users.
- Problems: one page per symptom, with a quick verdict, the cause and the fix.
- Ranking of 79 companies that fix vibe coded apps.
- Lovable app rescue: what breaks and how to check it
- Supabase RLS audit: how to check an AI-built app's database rules
- Bolt app rescue: moving a Bolt.new project to production
- v0 app rescue: Next.js apps generated with v0
- Replit app rescue: Replit Agent projects in production
- Cursor and Windsurf apps: when AI-written code needs an engineer
- Claude Code projects: taking over a codebase an agent wrote
Contact
Corrections, tips and listing requests: hello@whocanfixmyapp.com. Factual errors are corrected and the date of the change is noted.