Rebuild it, or keep paying
A catalogue that rates 1,093 paid tools on whether an agent could replace them — and why 86% of the time it should not
Someone went through 1,093 paid products and judged, one by one, whether a coding agent could rebuild each of them. Only 14% got the top verdict. That number is the entire value: the catalogue is far more useful as a list of what not to build than as a shopping list, because it is the rare place that will tell you no with a straight face.
Most people find a catalogue like this, get excited, and start building the first thing they recognise. That is the wrong way round. Every app page carries a verdict, a ready-made build prompt, an honest list of what you would lose, and any open-source alternatives that already exist — and the loss list is the part worth reading first. Read the verdict badge first and your brain has already decided; the loss list then becomes a formality you skim.
How 1,093 apps actually scored
Only about one in seven is a single-sitting job. The three figures sum to exactly 1,093, and the total is confirmed on the site itself.
It is expensive because of the data it holds, the other people already on it, integrations someone spent three years negotiating, or the legal work underneath. An agent can copy code in an afternoon. It cannot copy any of the other four — which is why 86 of every 100 tools are either real work or a bad idea, and why that is useful information rather than a discouraging one.
If the tool does any of these, keep paying
Apply this before you even look at a verdict. It settles most of the list on its own.
A note app is judged on the average person’s notes. If your copy holds eight years of history, has four colleagues writing in it daily, and lives on your phone as well, your personal verdict is harder than the badge says. Move it down one level for each of those that is true of you.
Audit your own stack in twenty minutes
The highest-value thing here, and the one almost nobody does — because it is less fun than building.
Get the real list, not the remembered one
Open your bank statement and your app-store subscriptions and write down every recurring software charge that is actually there.
Look each one up
Most well-known paid tools are somewhere in the catalogue.
Three columns: rebuild, swap, keep
Write the verdict next to each tool. That is the whole exercise.
Check for an existing alternative before building anything
Roughly seven in ten of the catalogued apps already have a free and open-source equivalent listed. Somebody else has usually finished the thing you were about to start.
Pick exactly one tool to act on this month
One. The person who picks six does none of them.
Someone has already fixed the bugs you have not thought of, and there is a community to ask when it breaks at 11pm. Building is the right call when your workflow is genuinely strange and nothing off the shelf fits — which is rarer than it feels in the moment you are annoyed.
Say these answers out loud
The ones you mumble are the ones you have not actually thought about.
Audit everything you pay for
The ordering is the trick: it must name where the value comes from before it is allowed to give a verdict. Ask “can I build this” and you get yes every time.
What would this actually cost me
Run it on your single finalist. Point 3 is the one that saves people — maintenance is the cost nobody models before starting.
Wrap the build prompt properly
Never paste a build prompt raw. The five questions and the GO gate stop the agent building its idea of the app instead of yours, and the export command means you are never trapped inside your own software — which is the thing you were escaping.
Make it yours — the one that justifies the exercise
A clone of a paid tool is just a worse paid tool. “Smallest possible change” is the instruction that stops an agent rewriting half a working app to add one button.
From nothing to a running app
The git init line costs one second and is the difference between a bad change being an inconvenience and a bad change being a lost weekend. Commit after every change that works.
When the right answer is to keep paying
Common mistakes
Your first week
Day 1 — list and audit
Every recurring charge from your statement, then prompt one on the full list. Sit with the answer for a day without acting.
Day 2 — shortlist honestly
Top three candidates, loss list before verdict badge, and cross off anything the fast filter catches.
Day 3 — cost the finalist
Prompt two on one tool. If it says keep paying, believe it and move to the next. That is a successful day, not a wasted one.
Day 4 — export your data
Get your data out of the real tool and somewhere safe. Do this even if you never build anything — most people have never tested whether their export works.
Day 5 — build version one
Install the agent, make the folder, git init, run prompt three. Answer the questions properly, get it running, commit it.
Day 6 — use it for real
All day, alongside the paid tool. Write every irritation into a plain text file and fix nothing yet.
Day 7 — fix the worst one, then decide
Prompt four on the single worst irritation. Then decide honestly whether you want to own this thing, and keep paying another month if it is not a clear yes.
One line: am I still using the thing I built? If the answer is no, cancel the project rather than the subscription. You will have learned something about yourself that saves the next four weekends.
The catalogue total of 1,093 apps was confirmed on the site itself, and the three verdict figures sum to exactly that. The traffic numbers were re-checked against the site’s public stats page on 17 September 2026 rather than repeated from the guide: it now shows 577,603 page views, 105,552 unique visitors and 11,168 prompts copied across 51 days, against the guide’s 564,050 / 103,951 / 10,901 at 49 days — so the guide was accurate when written and has simply been overtaken. The single-day peak of 49,006 matches exactly. The site is run by one independent developer and funded by sponsor slots; browsing it and copying prompts needs no account.